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CN109209404A - Shield machine muddy water circulation system - Google Patents

Shield machine muddy water circulation system Download PDF

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Publication number
CN109209404A
CN109209404A CN201811435257.4A CN201811435257A CN109209404A CN 109209404 A CN109209404 A CN 109209404A CN 201811435257 A CN201811435257 A CN 201811435257A CN 109209404 A CN109209404 A CN 109209404A
Authority
CN
China
Prior art keywords
muddy water
branch pipe
storehouse
shield machine
air cushion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811435257.4A
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Chinese (zh)
Inventor
梁奎生
陈建立
刘旭
郝超超
唐纵雄
董祥宽
杨洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Stock Co Ltd
Original Assignee
China Railway Tunnel Group Co Ltd CRTG
China Railway Tunnel Stock Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Tunnel Group Co Ltd CRTG, China Railway Tunnel Stock Co Ltd filed Critical China Railway Tunnel Group Co Ltd CRTG
Priority to CN201811435257.4A priority Critical patent/CN109209404A/en
Publication of CN109209404A publication Critical patent/CN109209404A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12Devices for removing or hauling away excavated material or spoil; Working or loading platforms
    • E21D9/13Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

本发明公开了一种盾构机泥水环流系统,该盾构机泥水环流系统包括总进浆管路和总排浆管路,总排浆管路的末端连通有泥水仓排浆支管和气垫仓排浆支管,泥水仓排浆支管和气垫仓排浆支管上均设有阀门,泥水仓排浆支管的末端的标高高度大于气垫仓排浆支管末端的标高高度。泥水仓排浆支管和气垫仓排浆支管可单独开通,正常的掘进过程是通过气垫仓排浆支管向外排出泥水浆液,当泥水仓中渣土滞排时,关闭泥浆门,并关闭气垫仓排浆支管上的阀门而打开泥水仓排浆支管上的阀门,通过泥水仓排浆支管将泥水仓中的泥水浆直接排出,增强了泥水仓内泥浆循环力度,增强携渣能力,对防止渣土滞排有较大的帮助,且降低泥水仓浆液比重,减少刀盘结泥饼的概率。

The invention discloses a mud-water circulation system of a shield machine. The mud-water circulation system of a shield machine comprises a general slurry feeding pipeline and a general slurry discharging pipeline. The slurry discharge branch pipe, the slurry discharge branch pipe of the mud water silo and the air cushion silo discharge branch pipe are all provided with valves. The slurry discharge branch pipe of the muddy water silo and the air cushion silo can be opened separately. The normal excavation process is to discharge the muddy water slurry outward through the slurry discharge branch of the air cushion silo. When the slag in the muddy water silo is stagnant, close the mud door and close the air cushion silo. The valve on the slurry discharge branch pipe opens the valve on the slurry discharge branch pipe of the muddy water silo, and the muddy water in the muddy water silo is directly discharged through the muddy water silo discharge branch pipe. The soil retention and drainage are of great help, and the specific gravity of the slurry in the slurry tank is reduced, reducing the probability of the cutter disk forming a mud cake.

Description

Shield machine muddy water circulation system
Technical field
The present invention relates to slurry balance shield machine technical fields, and in particular to a kind of shield machine muddy water circulation system.
Background technique
Slurry balance shield machine is the rear side in the cutterhead of mechanical shield, setting together before enclosed baffle (it is preceding closing every Board bottom portion is the mud door for being provided with opening, and top is provided with the gas exhaust piping and valve being communicated with the atmosphere, to discharge muddy water storehouse Interior gas), the space between preceding enclosed baffle and cutterhead is muddy water storehouse, the mud that water, bentonite and its additive are mixed, warp Pumping line is pressed into muddy water storehouse, interior another road rear enclosed partition (rear enclosed partition bottom of inserting on rear side of the preceding enclosed baffle of shield Portion is provided with the outlet of discharge mud), the space between preceding enclosed baffle and rear enclosed partition is air cushion storehouse, air cushion storehouse and muddy water Storehouse is connected to by the mud door that preceding enclosed baffle bottom is arranged, and shield axial line above section is filled with compressed air in air cushion storehouse, Air cushion is formed, gas pressure is on the contact surface with mud, since air-liquid has uniform pressure on contact surface, By adjusting liquid level in air pressure and air cushion storehouse, so that it may carry out building pressure to muddy water storehouse, ensure corresponding mud in excavation face Supporting pressure.It is full of entire muddy water storehouse to muddy water, and there is certain pressure, forms mud hydraulic pressure room, is made by the pressurization of muddy water With the stabilization for being able to maintain that excavated surface, when shield driving, after the agitated device stirring of the silt particle that rotary head is cut High concentration slurry is formed, ground sludge-water separating system is sent to fluid pumping mode, is transported after dregs is separated, after separation Muddy water send muddy water storehouse back to again and recycled.
Being smoothly discharged for muddy water slag is that the technology for needing emphasis to consider when the design of slurry-water balance type shield machine is asked in muddy water storehouse One of topic, general one jaw crusher of setting (maximum broken partial size 1200mm, maximum breaking strength 300MPa), passes through the jaw Large-sized stone is crushed by formula crusher, and to avoid blocking spoil disposal pipeline, the China such as Publication No. CN105065007A is special Sharp document describes a kind of shield machine muddy water circulation and rubble system, including be sequentially connected in series by pipeline inlet pipe, air cushion storehouse, Discharge nozzle, mud channel crusher, slurry pump and discharge pipe;The discharge nozzle be used for by air cushion storehouse mud and sandstone convey To in the mud channel crusher, the stone in air cushion storehouse is crushed by the mud channel crusher.Patent text Big partial size stone is only crushed by the crusher of the shield machine muddy water circulation and the setting of rubble system of offering record, and mud and water balance shield The muddy water slag volume that structure machine needs to be discharged is huge, and the blockage problem of spoil disposal pipeline can still occur often.
The Chinese invention patent document of Publication No. CN206785398U describes a kind of slurry balance shield mud circulation System, including inlet pipe and plasma discharge pipeline and setting between the inlet pipe road and plasma discharge pipeline and are connected to inlet pipe road and row The mud of slurry pipeline returns circulation line, and the mud, which is returned, is arranged current divider between circulation line and the plasma discharge pipeline, institute It states mud and returns and be provided with booster pump on pipeline, the inlet pipe terminal and discharge pipe terminal of the booster pump are respectively arranged with valve Door.The invention also discloses a kind of slurry balance shield, mud circulating system include setting inlet pipe road and plasma discharge pipeline it Between and be connected to the mud on inlet pipe road and plasma discharge pipeline and return circulation line, the mud returns circulation line and the discharge pipe Current divider is set between road, and the mud is returned and is provided with booster pump on pipeline, the inlet pipe terminal of the booster pump and plasma discharge Pipeline end is respectively arranged with valve.
Although the slurry balance shield mud circulating system that the patent document is recorded is equipped with multiple into slurry branch pipe and mud time Circulation line, but its outside spoil disposal slurry since air cushion orlop portion are broken, is not had directly from the outside plasma discharge function in muddy water orlop portion. It when the more body refuse of the stagnant product in air cushion orlop portion, needs to stop to tunnel, carries out the mud circulation of pipeline, once stagnant deposition slag is excessive When, then artificial warehouse entry scarfing cinder is needed, not only delays normal headwork, but also due to belonging to hyperbaric environment in muddy water storehouse, into It is larger to the physically and mentally healthy risk of staff to enter muddy water storehouse.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of shield machine muddy water circulation systems, solve muddy water in the prior art The air cushion capacity of shield machine easily accumulates body refuse and causes deslagging unsmooth, cannot from the direct plasma discharge in muddy water storehouse the technical issues of.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
Design a kind of shield machine muddy water circulation system, including total inlet pipe road and total plasma discharge pipeline, the end of total plasma discharge pipeline It holds and is communicated with muddy water storehouse plasma discharge branch pipe and air cushion storehouse plasma discharge branch pipe, on the muddy water storehouse plasma discharge branch pipe and air cushion storehouse plasma discharge branch pipe Equipped with valve, the end of the muddy water storehouse plasma discharge branch pipe is located at the muddy water orlop portion of shield machine, the air cushion storehouse plasma discharge branch pipe End is located at the air cushion orlop portion of shield machine, and the Altitude of the end of the muddy water storehouse plasma discharge branch pipe is arranged greater than the air cushion storehouse Starch the Altitude of branch pipe end.
The end of total plasma discharge pipeline of shield machine muddy water circulation system of the present invention is communicated with muddy water storehouse plasma discharge branch pipe and air cushion Storehouse plasma discharge branch pipe, due to being equipped with valve on muddy water storehouse plasma discharge branch pipe and air cushion storehouse plasma discharge branch pipe, the two can be individually open-minded, It is that muddy water slurries are discharged by air cushion storehouse plasma discharge branch pipe in normal tunneling process, as shield machine constantly tunnels, Muddy water orlop portion will continue to accumulate chip ballast, these chip ballasts can hinder muddy water slurries to flow to air cushion storehouse, lead to the stagnant row of dregs, In this case, close the mud door in connection muddy water storehouse and air cushion storehouse, and the valve closed on air cushion storehouse plasma discharge branch pipe and open Muddy water slurry in muddy water storehouse is expelled directly out by muddy water storehouse plasma discharge branch pipe, promotes cutterhead by the valve on muddy water storehouse plasma discharge branch pipe Most of muddy water slurries that are cutting and inputting into muddy water storehouse can lead to muddy water storehouse, enhance mud in muddy water storehouse and recycle Slag ability is taken in dynamics, enhancing, to preventing the stagnant row of dregs from having biggish help, and reduction muddy water storehouse slurry specific gravity, reduces cutterhead knot The probability of mud cake.
Preferably, further include connecting pipeline for being connected to muddy water storehouse and air cushion storehouse, the lower end of the connecting pipeline is located at Air cushion storehouse lower part, upper end are communicated to the top in muddy water storehouse, and the connecting pipeline is equipped with valve.
The transmitting that pressure in air cushion storehouse and muddy water storehouse is realized by connecting pipeline, ensure that muddy water storehouse pressure stability and Precision is controlled, muddy water storehouse pressure controling precision is higher, can preferably balance the Water And Earth Pressures of face, reduces earth's surface breakdown or heavy The risk of drop.
Preferably, the rear end on total inlet pipe road be communicated with it is multiple into slurry branch pipe, it is described into slurry branch pipe include be communicated to Branch pipe is washed away on the muddy water storehouse top of corresponding position inside shield machine, branch pipe is washed away at air cushion storehouse middle part, washes away branch pipe, mud in the middle part of cutterhead Branch pipe is washed away in portion to slurry in front of the door, crusher washes away branch pipe, branch pipe is washed away at mud door rear portion, branch pipe is washed away in muddy water storehouse lower part, each described It can independent on-off and/or whole on-off into slurry branch pipe.
At the cutterhead of shield machine, muddy water storehouse and multiple positions in air cushion storehouse, branch pipe is washed away in setting, inputs into shield machine Mud can accurately wash away each position, prevent body refuse local accumulation and cause muddy water serum recycle inside shield machine unsmooth.
Preferably, total inlet pipe road is equipped with for controlling each total valve into slurry branch pipe on-off.It is arranged Total valve is conveniently adjusted into slurry and plasma discharge mode.
Preferably, total plasma discharge pipeline be also communicated with it is inverse rinse inlet pipe and it is inverse rinse discharge pipe, it is described inverse to be flushed into Slurry pipe and inverse rinse on discharge pipe are equipped with valve, and the inverse other end for rinsing inlet pipe is communicated to total inlet pipe road, The inverse other end for rinsing discharge pipe is communicated to the muddy water storehouse and/or air cushion storehouse of shield machine;Total discharge pipe road is located at It is described it is inverse rinse inlet pipe and the inverse pipeline section rinsed between discharge pipe is equipped with valve, it is described it is inverse rinse inlet pipe with it is described The connectivity points of total plasma discharge pipeline are than the connectivity points of the inverse flushing discharge pipe and total plasma discharge pipeline close to the excavation of shield machine Face.
Preferably, the inverse other end for rinsing discharge pipe is communicated with inverse plasma discharge branch pipe and the air cushion storehouse rinsed in muddy water storehouse against punching Plasma discharge branch pipe is washed, the inverse end for rinsing plasma discharge branch pipe in the muddy water storehouse is located at the muddy water storehouse middle and lower part of shield machine, the air cushion storehouse The inverse end for rinsing plasma discharge branch pipe is located at the middle and lower part in the air cushion storehouse of shield machine.
It, can in front of the slurry pump of total plasma discharge pipeline when pipeline blockage, air cushion orlop portion or the stagnant row of muddy water orlop portion dregs It opens inverse flushing inlet pipe and against discharge pipe is rinsed, inverse plasma discharge branch pipe and the air cushion storehouse rinsed in muddy water storehouse can be single against flushing plasma discharge branch pipe It is solely open-minded, start inverse rinse mode, mud flowing when inverse rinse mode and normal muddy water circulation patterns is contrary, favorably It is dredged in the total plasma discharge pipeline of promotion, air cushion orlop portion and muddy water orlop portion, and the increased inverse discharge pipe that rinses can be realized slurries Discharge is, it can be achieved that continue back flush until blocking pipeline is dredged.
Preferably, total discharge pipe road is equipped with current divider, and the current divider is communicated with for muddy water in shield machine The mud that storehouse and/or air cushion storehouse are washed away returns pipeline, and the mud returns pipeline equipped with valve.
The mud of setting returns pipeline and further enhances mud circulation strength in muddy water storehouse, can effectively reduce shield machine The generation of stifled storehouse phenomenon improves drivage efficiency, and reduces through the mud input quantity in total inlet pipe road direction shield machine, reduction at This.
Preferably, the end that the mud returns pipeline is communicated with before grid wash away branch pipe and grid after wash away branch pipe, institute It states and washes away the end of branch pipe after washing away branch pipe and grid before grid and be respectively used to carry out the front and back of grid in shield machine It washes away.
Preferably, total discharge pipe road is additionally provided with roller tooth screening type crusher, and the roller tooth screening type crusher goes out The maximum particle of crushed stone come is 350mm, and position of the roller tooth screening type crusher on total discharge pipe road is than described point Device is flowed close to the excavation face of shield machine.Roller tooth screening type crusher can be crushed and screen big partial size stone, effectively prevent slurry pump With the blocking of subsequent pipeline.
Preferably, the total inlet pipe road be equipped with two it is concatenated into stock pump, total discharge pipe road is equipped with four Concatenated slurry pump.Branch pipe is washed away in the middle part of the cutterhead and mud door front is washed away and is equipped with booster pump on branch pipe.Into stock pump and Slurry pump is the setting that is installed in series, and with the continuous extension of tunnel piercing mileage, ensures the transporting power of mud.
In conclusion shield machine muddy water circulation system provided by the invention by setting muddy water storehouse plasma discharge branch pipe, it can be achieved that Muddy water storehouse mud is in line, guarantees that muddy water storehouse mud circulation is smooth, avoids staff's warehouse entry operation, and the connecting pipeline being arranged can Realize the transmitting of pressure in air cushion storehouse and muddy water storehouse, it is ensured that muddy water storehouse pressure is stablized.
Detailed description of the invention
Fig. 1 is the section view of the slurry balance shield machine head where one embodiment of shield machine muddy water circulation system of the present invention Figure;
Fig. 2 is the structural schematic diagram of one embodiment of shield machine muddy water circulation system of the present invention;
Fig. 3 is circulation schematic diagram of one embodiment of shield machine muddy water circulation system of the present invention under conventional boring mode;
Fig. 4 be one embodiment of shield machine muddy water circulation system of the present invention muddy water storehouse meet an urgent need the circulation under in line boring mode illustrate Figure;
Fig. 5 be one embodiment of shield machine muddy water circulation system of the present invention in air cushion storehouse against the circulation schematic diagram under rinse mode;
Fig. 6 be one embodiment of shield machine muddy water circulation system of the present invention in air cushion storehouse against the circulation schematic diagram under rinse mode.
In figure, the signal of each label are as follows: cutterhead 111, muddy water storehouse 112, air cushion storehouse 113, jaw crusher 114, grid 115, Mud door 116, rear bulkhead 118, total inlet pipe road 12, into stock pump 120, muddy water storehouse top washes away branch pipe 121, gas at front baffle 117 Washed away in the middle part of pad storehouse branch pipe 122, wash away branch pipe 123 in the middle part of cutterhead, branch pipe 124 is washed away in mud door front, crusher washes away branch pipe 125, branch pipe 126 is washed away at mud door rear portion, branch pipe 127 is washed away in muddy water storehouse lower part, total valve 128, total plasma discharge pipeline 13, slurry pump 130, muddy water storehouse plasma discharge branch pipe 131, air cushion storehouse plasma discharge branch pipe 132, inverse flushing inlet pipe 151, inverse flushing discharge pipe 152, muddy water Storehouse is inverse to rinse plasma discharge branch pipe 1521, the inverse flushing plasma discharge branch pipe 1522 in air cushion storehouse, inverse flushing valve 153, current divider 16, roller tooth screening Formula crusher 17.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail It describes the bright present invention in detail, does not limit the scope of the invention in any way.
Embodiment 1:
Fig. 1 is please referred to Fig. 6.
As shown in Figure 1, shield machine muddy water circulation system use provided in an embodiment of the present invention is on slurry balance shield machine, 111 rear of cutterhead of slurry balance shield machine isolates two inner spaces by front baffle 117 and rear bulkhead 118, wherein it is preceding every It is muddy water storehouse 112 before plate 117, is air cushion storehouse 113 between front baffle 117 and rear bulkhead 118, is set in the bottom of front baffle 117 There is mud door 116, the mud in muddy water storehouse 112 enters air cushion storehouse 113 by mud door 116, and the upper half in air cushion storehouse 113 is full of band Press air, the lower half in air cushion storehouse 113 is mud, plasma discharge pipeline by the mud of 113 lower half of air cushion storehouse to outlet, in air cushion storehouse 113 bottom is equipped with jaw crusher 114 and grid 115, carries in the mud by the entrance air cushion storehouse 113 of muddy water storehouse 112 big Stone is crushed by jaw crusher 114, and grid 115 covers the outlet of plasma discharge pipeline, and preventing big partial size stone from entering causes to arrange Starch line clogging.
The cutter diameter of the slurry balance shield machine is greater than 15 meters, configured with the upper half gas for adjusting air cushion storehouse 113 The pressure-retaining system of pressure, the upper half air pressure maximum in air cushion storehouse 113 are more than 8bar, are used for super-large diameter constructing tunnel, and excavation face is huge Greatly, mud circulation is big, and subsurface geology situation is complicated, to the more demanding of circulation system.
As shown in Fig. 2, shield machine muddy water circulation system provided in an embodiment of the present invention includes total inlet pipe road 12 and total row Starch pipeline 13, total inlet pipe road 12 be equipped with two it is concatenated into stock pump 120, wherein one into stock pump 120 be first armored pump, it is another Platform is relay pump, has set four concatenated slurry pumps 130 on total plasma discharge pipeline 13 altogether, wherein a slurry pump 130 is first armored pump, Other three be relay pump, with enhance circulation system into slurry and plasma discharge power, wherein into the function of stock pump 120 and slurry pump 130 Rate is 1100kW, is all made of water-cooling frequency conversion motor into stock pump 120 and slurry pump 130, and local and master control room point can be achieved It does not control not individually.
In slurry balance shield machine driving, proportion is good and and injects muddy water by total inlet pipe road 12 at the bentonite of mud In storehouse 112 or air cushion storehouse 113, the body refuse excavated by cutterhead 111 enters 113 bottom of air cushion storehouse in company with the mud of injection, by total Plasma discharge pipeline 13 is discharged, and the process of muddy water circulation transports the body refuse of excavation.
Muddy water storehouse plasma discharge branch pipe 131 and air cushion storehouse plasma discharge branch pipe 132, muddy water storehouse are communicated in the end of total plasma discharge pipeline 13 Valve is equipped on plasma discharge branch pipe 131 and air cushion storehouse plasma discharge branch pipe 132, the end of muddy water storehouse plasma discharge branch pipe 131 is located at shield machine 112 bottom of muddy water storehouse, the end of air cushion storehouse plasma discharge branch pipe 132 is located at 113 bottom of air cushion storehouse of shield machine, wherein muddy water storehouse The Altitude of the end of plasma discharge branch pipe 131 is greater than the Altitude of 132 end of air cushion storehouse plasma discharge branch pipe.
Muddy water storehouse plasma discharge branch pipe 131 and air cushion storehouse plasma discharge branch pipe 132 can be individually open-minded by control valve, normal In tunneling process, opens the valve on air cushion storehouse plasma discharge branch pipe 132 and close the valve on muddy water storehouse plasma discharge branch pipe 131, pass through Air cushion storehouse plasma discharge branch pipe 132 discharges muddy water slurries.
As shield machine constantly tunnels, if the chip ballast that 112 bottom of muddy water storehouse is constantly accumulated hinders mud to pass through mud door 116 flow to air cushion storehouse 113, will lead to the stagnant row of dregs, in this case, close the mud in connection muddy water storehouse 112 and air cushion storehouse 113 Door 116 is starched, and closes the valve on air cushion storehouse plasma discharge branch pipe 132, and opens the valve on muddy water storehouse plasma discharge branch pipe 131, due to The Altitude that the Altitude of the end of muddy water storehouse plasma discharge branch pipe 131 is greater than 132 end of air cushion storehouse plasma discharge branch pipe therefore can The muddy water slurry in muddy water storehouse 112 is expelled directly out by muddy water storehouse plasma discharge branch pipe 131, promotes muddy water circulation in muddy water storehouse 112 Middle progress enhances in muddy water storehouse 112 mud and recycles dynamics, and slag ability is taken in enhancing, to solving the problems, such as that it is biggish that the stagnant row of dregs has It helps, and reduces slurry specific gravity in muddy water storehouse 112, reduce the incrusted probability of cutterhead 111.
Further, which further includes for being connected to being connected to for muddy water storehouse 112 and air cushion storehouse 113 Pipeline 14, the lower end of connecting pipeline 14 are located at 113 lower part of air cushion storehouse, and upper end is communicated to the top in muddy water storehouse 112, connecting pipeline 14 It is equipped with valve.After closing mud door 116, the pressure in air cushion storehouse 113 can not be transmitted to muddy water storehouse by mud door 116 again 112, and the valve on connecting pipeline 14 is opened, the biography of pressure in air cushion storehouse 113 and muddy water storehouse 112 is realized by connecting pipeline 14 It passs, ensure that the stability and control precision of 112 pressure of muddy water storehouse, 112 pressure controling precision of muddy water storehouse is higher, can preferably put down The Water And Earth Pressures of weighing apparatus face reduce the risk of earth's surface breakdown or sedimentation.
In the present embodiment, the rear end on total inlet pipe road 12 be communicated with it is multiple into slurry branch pipe, these into slurry branch pipe include connection Branch pipe 121 is washed away on the muddy water storehouse top of corresponding position inside to shield machine, branch pipe 122 is washed away at air cushion storehouse middle part, punching in the middle part of cutterhead Brush branch pipe 123, mud door front wash away branch pipe 124, crusher washes away branch pipe 125, branch pipe 126, muddy water are washed away in mud door rear portion Branch pipe 127 is washed away in storehouse lower part.
Respectively being input to mud into slurry branch pipe is also to wash away in shield machine to corresponding position in shield machine, prevents shield machine Corresponding position accumulated slag, wherein the top that branch pipe 121 is communicated to muddy water storehouse 112 is washed away on muddy water storehouse top, is washed away in the middle part of air cushion storehouse Branch pipe 122 is communicated to the position close to 113 middle part of air cushion storehouse, washes away the middle part that branch pipe 123 is communicated to cutterhead 111 in the middle part of cutterhead, The middle and lower part that branch pipe 124 is communicated to muddy water storehouse 112 is washed away in mud door front, is located at 116 front upper of mud door, and crusher washes away Branch pipe 125 is communicated to 114 top of crusher, and mud door rear portion washes away branch pipe 126 and is communicated to 113 bottom of air cushion storehouse, is located at mud The bottom that branch pipe 127 is communicated to muddy water storehouse 112 is washed away in 116 rear uppers of door, muddy water storehouse lower part, and part of it pipeline utilizes muddy water Storehouse plasma discharge branch pipe 131.
Branch pipe 123 is washed away in the middle part of cutterhead and mud door front is washed away on branch pipe 124 and is equipped with booster pump, for enhancing punching Swipe power.
Multiple branched pipes for being laid in shield machine corresponding position respectively can be again split into slurry branch pipe end, for example, in this reality It applies in example, the end branch that branch pipe 123 is washed away in the middle part of cutterhead is multiple branch pipes, washes away area to cutterhead to increase.
It is equipped on total inlet pipe road 12 for controlling respectively into the total valve 128 of slurry branch pipe on-off, to control respectively into slurry branch Pipe entirety on-off.
Further, total plasma discharge pipeline 13 is also communicated with inverse flushing inlet pipe 151 and inverse flushing discharge pipe 152, inverse to rinse Inlet pipe 151 and inverse rinse on discharge pipe 152 are equipped with valve, and the inverse other end for rinsing inlet pipe 151 is communicated to total inlet pipe Road 12, the inverse other end for rinsing discharge pipe 152 are communicated with muddy water storehouse and rinse plasma discharge against flushing plasma discharge branch pipe 1521 and air cushion storehouse are inverse Branch pipe 1522, the inverse end for rinsing plasma discharge branch pipe 1521 in muddy water storehouse are located at 112 middle and lower part of muddy water storehouse of shield machine, the inverse punching in air cushion storehouse Wash plasma discharge branch pipe 1522 end be located at shield machine air cushion storehouse 113 middle and lower part.
When the 112 bottom slag of 130 front pipeline blockage of slurry pump, 113 bottom of air cushion storehouse or muddy water storehouse of total plasma discharge pipeline 13 When native stagnant row, it can open against inlet pipe 151 and inverse flushing discharge pipe 152 is rinsed, the inverse flushing plasma discharge branch pipe 1521 in muddy water storehouse is gentle Padding the inverse plasma discharge branch pipe 1522 that rinses in storehouse can be individually open-minded, starts inverse rinse mode, inverse rinse mode and normal muddy water circulation mould Mud flowing when formula is contrary, may advantageously facilitate total plasma discharge pipeline 13,113 bottom of air cushion storehouse and 112 bottom of muddy water storehouse and dredges It is logical, and the increased inverse discharge pipe 152 that rinses can be realized slurries discharge, it can be achieved that continuing back flush until blocking pipeline is dredged It is logical.
It is located on inverse flushing inlet pipe 151 and the inverse pipeline section rinsed between discharge pipe 152 on total plasma discharge pipeline 13 and is equipped with The connectivity points ratio of inverse flushing valve 153, inverse flushing inlet pipe 151 and total plasma discharge pipeline 13 is inverse to rinse discharge pipe 152 and total plasma discharge The connectivity points of pipeline 13 when starting inverse rinse mode, inverse flushing valve 153 are closed, Fang Keshi close to the excavation face of shield machine Existing mud circulation.
Further, total plasma discharge pipeline 13 is equipped with current divider 16, and current divider 16 is communicated with for air cushion in shield machine The mud that storehouse 113 is washed away returns pipeline 161, returns in mud and is equipped with secondary cycle pump on pipeline 161, and mud returns pipeline Valve is additionally provided on 161.The end that mud returns pipeline 16 is communicated with before grid wash away branch pipe 1611 and grid after wash away branch pipe 1612, it washes away before grid after branch pipe 1611 and grid and washes away the end of branch pipe 1612 and be respectively used to grid 115 in shield machine Front and back is washed away.
Roller tooth screening type crusher 17 is additionally provided on total plasma discharge pipeline 13, the maximum of jaw crusher 114 is crushed partial size and is 1200mm, and it is 350mm that the maximum of roller tooth screening type crusher 17, which is crushed partial size, roller tooth screening type crusher 17 is in total discharge pipe Position on road 13 than current divider 16 close to the excavation face of shield machine so that the rubble that mud carries enters back into after second-time breakage Current divider 16, from the rubble come out in jaw crusher 114, partial size is smaller after roller tooth screening type crusher 17 is crushed again, prevents Only block pipeline.
The various operating modes of shield machine muddy water circulation system are as follows in embodiment 1:
As shown in figure 3, under conventional boring mode, mud door 116 is opened, the muddy water circulation system into stock pump 120 and plasma discharge Pump 130 is opened, and washes away branch pipe 123 in the middle part of cutterhead and booster pump and mud that mud door front is washed away on branch pipe 124 are returned Secondary cycle pump on pipeline 161 is also opened, by the valve on inverse flushing inlet pipe 151, the valve on connecting pipeline 14, inverse punching The valve on valve and muddy water storehouse plasma discharge branch pipe 131 washed on discharge pipe 152 is turned off, remaining valve is opened, and realizes muddy water Circulation.
As shown in figure 4, when more rock ballast is accumulated in 112 bottom of muddy water storehouse leads to stagnant row, the in line pick of starting muddy water storehouse emergency Progressive die formula.Muddy water storehouse is met an urgent need under in line boring mode, and mud door 116 is closed, the muddy water circulation system into stock pump 120 and plasma discharge Pump 130 is opened, and washes away branch pipe 123 in the middle part of cutterhead and booster pump that mud door front is washed away on branch pipe 124 is opened, mud is returned Secondary cycle pump and valve on pipeline 161 are closed, by inverse flushing inlet pipe 151 valve, inverse rinse on discharge pipe 152 Valve on valve and air cushion storehouse plasma discharge branch pipe 132 is turned off, and the valve on muddy water storehouse plasma discharge branch pipe 131 is opened, and Valve on connecting pipeline 14 is also opened, in line to mud progress in muddy water storehouse 112 to realize, and can be in muddy water storehouse 112 Mud pressure is controlled.
As shown in figure 5, as the stagnant row of 113 bottom dregs of air cushion storehouse, air cushion storehouse can be used against rinse mode, it is inverse in air cushion storehouse Under rinse mode, mud door 116 is opened, and is opened into stock pump 120 and slurry pump 130, washes away branch pipe 123 and mud in the middle part of cutterhead The booster pump and mud that portion is washed away on branch pipe 124 in front of the door are returned the pump of the secondary cycle on pipeline 161 and are turned off, and inverse will be flushed into The inverse valve rinsed on plasma discharge branch pipe 1522 of valve, the inverse valve rinsed on discharge pipe 152 and air cushion storehouse on slurry pipe 151 is beaten It opens, remaining valve is closed, and is realized that air cushion storehouse is inverse and is rinsed.
As shown in fig. 6, muddy water storehouse can also be used against rinse mode, in muddy water storehouse as the stagnant row of 112 bottom dregs of muddy water storehouse Under inverse rinse mode, mud door 116 is closed, and is opened into stock pump 120 and slurry pump 130, washes away branch pipe 123 and mud in the middle part of cutterhead Slurry portion is washed away on branch pipe 124 in front of the door booster pump and mud are returned the pump of the secondary cycle on pipeline 161 and are turned off, and inverse will rinse The inverse valve rinsed on plasma discharge branch pipe 1521 of valve, the inverse valve rinsed on discharge pipe 152 and muddy water storehouse on inlet pipe 151 is beaten It opens, remaining valve is closed, and is realized that muddy water storehouse is inverse and is rinsed.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.

Claims (10)

1. a kind of shield machine muddy water circulation system, including total inlet pipe road and total plasma discharge pipeline, it is characterised in that total plasma discharge The end of pipeline is respectively communicated with muddy water storehouse plasma discharge branch pipe and air cushion storehouse plasma discharge branch pipe, the muddy water storehouse plasma discharge branch pipe and air cushion storehouse row It is equipped with valve on slurry branch pipe, the end of the muddy water storehouse plasma discharge branch pipe is located at the muddy water orlop portion of shield machine, the air cushion storehouse The end of plasma discharge branch pipe is located at the air cushion orlop portion of shield machine, and the Altitude of the end of the muddy water storehouse plasma discharge branch pipe is greater than institute State the Altitude of air cushion storehouse plasma discharge branch pipe end.
2. shield machine muddy water circulation system according to claim 1, which is characterized in that further include for be connected to muddy water storehouse and The connecting pipeline in air cushion storehouse, the lower end of the connecting pipeline are located at air cushion storehouse lower part, and upper end is communicated to the top in muddy water storehouse, described Connecting pipeline is equipped with valve.
3. shield machine muddy water circulation system according to claim 1, which is characterized in that the rear end on total inlet pipe road connects It is connected with multiple into slurry branch pipe, described into slurry branch pipe includes being communicated to the muddy water storehouse top of corresponding position inside shield machine to wash away branch It manages, branch pipe is washed away at air cushion storehouse middle part, wash away branch pipe in the middle part of cutterhead, branch pipe is washed away in mud door front, crusher washes away branch pipe, mud Branch pipe is washed away in portion behind the door, branch pipe is washed away in muddy water storehouse lower part, it is each it is described can individually on-off and/or whole on-off into slurry branch pipe.
4. shield machine muddy water circulation system according to claim 3, which is characterized in that total inlet pipe road is equipped with use It is each described into the total valve for starching branch pipe on-off in controlling.
5. shield machine muddy water circulation system according to claim 1, which is characterized in that total plasma discharge pipeline is also communicated with Against inlet pipe and inverse flushing discharge pipe is rinsed, the inverse flushing inlet pipe and inverse rinse on discharge pipe are equipped with valve, described inverse The other end for rinsing inlet pipe is communicated to total inlet pipe road, and the inverse other end for rinsing discharge pipe is communicated to shield machine Muddy water storehouse and/or air cushion storehouse;Total discharge pipe road is located between the inverse flushing inlet pipe and the inverse flushing discharge pipe Pipeline section be equipped with valve, the inverse connectivity points for rinsing inlet pipe and total plasma discharge pipeline than it is described it is inverse rinse discharge pipe with Excavation face of the connectivity points of total plasma discharge pipeline close to shield machine.
6. shield machine muddy water circulation system according to claim 5, which is characterized in that described against the another of flushing discharge pipe End is communicated with muddy water storehouse and rinses plasma discharge branch pipe against flushing plasma discharge branch pipe and air cushion storehouse are inverse, the inverse flushing plasma discharge branch pipe in the muddy water storehouse End is located at the muddy water storehouse middle and lower part of shield machine, and the inverse end for rinsing plasma discharge branch pipe in the air cushion storehouse is located at the air cushion storehouse of shield machine Middle and lower part.
7. shield machine muddy water circulation system according to claim 1, which is characterized in that the total discharge pipe road is equipped with point Device is flowed, the mud that the current divider is communicated with for being washed away to muddy water storehouse in shield machine and/or air cushion storehouse returns pipeline, institute It states mud and returns pipeline equipped with valve.
8. shield machine muddy water circulation system according to claim 7, which is characterized in that the mud returns the end of pipeline It is communicated with before grid after washing away branch pipe and grid and washes away branch pipe, washed away before the grid after branch pipe and grid and wash away the end of branch pipe It is respectively used to wash away the front and back of grid in shield machine.
9. shield machine muddy water circulation system according to claim 7, which is characterized in that total discharge pipe road is additionally provided with Roller tooth screening type crusher, the maximum particle of crushed stone that the roller tooth screening type crusher comes out are 350mm, the roller tooth screening type Position of the crusher on total discharge pipe road is than the current divider close to the excavation face of shield machine.
10. shield machine muddy water circulation system according to claim 3, which is characterized in that total inlet pipe road is equipped with Two concatenated into stock pump, and total discharge pipe road is equipped with four concatenated slurry pumps;Washed away in the middle part of the cutterhead branch pipe and Mud door front, which is washed away, is equipped with booster pump on branch pipe.
CN201811435257.4A 2018-11-28 2018-11-28 Shield machine muddy water circulation system Pending CN109209404A (en)

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CN110125129A (en) * 2019-06-20 2019-08-16 中铁工程装备集团有限公司 A kind of slurry shield pernicious gas collection device
CN110671117A (en) * 2019-10-30 2020-01-10 中铁隧道局集团有限公司 Anti-stagnation device and anti-stagnation method for high-pressure scouring system in shield equipment bin
CN110725683A (en) * 2019-12-05 2020-01-24 中国铁建重工集团股份有限公司 Slurry circulation slag discharging system for shaft boring machine
CN112160760A (en) * 2020-09-12 2021-01-01 中铁隧道局集团有限公司 Construction method for coping with accumulated slag in large-diameter slurry shield cabin
CN112538340A (en) * 2020-12-02 2021-03-23 中铁隧道股份有限公司 Shield slurry preparing process
CN112696202A (en) * 2020-12-29 2021-04-23 广州轨道交通建设监理有限公司 Mud circulation, sediment and thick liquid level control system under TBM mode
CN113482646A (en) * 2021-08-25 2021-10-08 中国铁建重工集团股份有限公司 Slurry balance shield machine for communication channel
CN113898358A (en) * 2021-10-12 2022-01-07 中铁工程装备集团有限公司 Multi-mode shield constructs machine
CN113898370A (en) * 2021-09-22 2022-01-07 中铁工程装备集团有限公司 Multichannel slurry discharge system and shield tunneling machine
CN114109412A (en) * 2021-11-30 2022-03-01 中铁一局集团有限公司 Slurry shield circulation system and method based on double crushers and double slurry discharge channels
CN114165246A (en) * 2021-12-08 2022-03-11 北京市市政四建设工程有限责任公司 A mud-water pipeline for mud-water-earth-pressure dual-mode shield machine and using method
CN114215535A (en) * 2021-12-13 2022-03-22 中铁工程装备集团有限公司 A mud-water balance shield mud circulation system
CN114233322A (en) * 2022-01-11 2022-03-25 中铁十四局集团有限公司 Multi-pipeline slurry discharge device, shield equipment with same and shield method
CN114382494A (en) * 2022-01-26 2022-04-22 中国铁建重工集团股份有限公司 A shield machine, scouring device and mud circulation system
CN114412498A (en) * 2022-01-27 2022-04-29 中建八局轨道交通建设有限公司 Slurry Shield Proximal Discharge Pipe and Knife Gate Valve Replacement Method
CN114776318A (en) * 2022-04-27 2022-07-22 中国铁建重工集团股份有限公司 A shield machine slag discharge system and construction method
CN115822625A (en) * 2022-12-13 2023-03-21 中铁工程装备集团有限公司 Air cushion type slurry shield machine and construction method thereof
CN116480361A (en) * 2023-06-12 2023-07-25 中铁十四局集团大盾构工程有限公司 Slurry balance shield machine air cushion bin and excavation bin bottom slag accumulation prevention method
CN117738680A (en) * 2023-11-28 2024-03-22 中铁十一局集团有限公司 Method and system for controlling circular flow of large-diameter slurry shield
CN117753737A (en) * 2024-01-16 2024-03-26 中电建铁路建设投资集团有限公司 An air-cushion balanced mud-water shield mud-water tank sediment and pipeline lag treatment method
CN120487143A (en) * 2025-07-17 2025-08-15 中铁十四局集团有限公司 Grouting density variable shield tunneling machine slag discharging system

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CN110125129A (en) * 2019-06-20 2019-08-16 中铁工程装备集团有限公司 A kind of slurry shield pernicious gas collection device
CN110671117A (en) * 2019-10-30 2020-01-10 中铁隧道局集团有限公司 Anti-stagnation device and anti-stagnation method for high-pressure scouring system in shield equipment bin
CN110725683A (en) * 2019-12-05 2020-01-24 中国铁建重工集团股份有限公司 Slurry circulation slag discharging system for shaft boring machine
CN112160760B (en) * 2020-09-12 2022-07-22 中铁隧道局集团有限公司 Construction method for coping with accumulated slag in large-diameter slurry shield cabin
CN112160760A (en) * 2020-09-12 2021-01-01 中铁隧道局集团有限公司 Construction method for coping with accumulated slag in large-diameter slurry shield cabin
CN112538340A (en) * 2020-12-02 2021-03-23 中铁隧道股份有限公司 Shield slurry preparing process
CN112696202A (en) * 2020-12-29 2021-04-23 广州轨道交通建设监理有限公司 Mud circulation, sediment and thick liquid level control system under TBM mode
CN113482646A (en) * 2021-08-25 2021-10-08 中国铁建重工集团股份有限公司 Slurry balance shield machine for communication channel
CN113898370A (en) * 2021-09-22 2022-01-07 中铁工程装备集团有限公司 Multichannel slurry discharge system and shield tunneling machine
CN113898370B (en) * 2021-09-22 2024-09-20 中铁工程装备集团有限公司 Multichannel slurry discharging system and shield machine
CN113898358A (en) * 2021-10-12 2022-01-07 中铁工程装备集团有限公司 Multi-mode shield constructs machine
CN114109412B (en) * 2021-11-30 2024-05-10 中铁一局集团有限公司 Slurry shield circulation system and method based on double crushers and double slurry channels
CN114109412A (en) * 2021-11-30 2022-03-01 中铁一局集团有限公司 Slurry shield circulation system and method based on double crushers and double slurry discharge channels
CN114165246A (en) * 2021-12-08 2022-03-11 北京市市政四建设工程有限责任公司 A mud-water pipeline for mud-water-earth-pressure dual-mode shield machine and using method
CN114215535A (en) * 2021-12-13 2022-03-22 中铁工程装备集团有限公司 A mud-water balance shield mud circulation system
CN114233322A (en) * 2022-01-11 2022-03-25 中铁十四局集团有限公司 Multi-pipeline slurry discharge device, shield equipment with same and shield method
CN114382494A (en) * 2022-01-26 2022-04-22 中国铁建重工集团股份有限公司 A shield machine, scouring device and mud circulation system
CN114382494B (en) * 2022-01-26 2025-09-02 中国铁建重工集团股份有限公司 Shield machine, flushing device and mud circulation system
CN114412498A (en) * 2022-01-27 2022-04-29 中建八局轨道交通建设有限公司 Slurry Shield Proximal Discharge Pipe and Knife Gate Valve Replacement Method
CN114412498B (en) * 2022-01-27 2025-03-11 中建八局轨道交通建设有限公司 Replacement method of slurry discharge pipe and knife gate valve near the slurry shield
CN114776318A (en) * 2022-04-27 2022-07-22 中国铁建重工集团股份有限公司 A shield machine slag discharge system and construction method
CN114776318B (en) * 2022-04-27 2025-01-21 中国铁建重工集团股份有限公司 Shield machine slag discharge system and construction method
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CN117738680A (en) * 2023-11-28 2024-03-22 中铁十一局集团有限公司 Method and system for controlling circular flow of large-diameter slurry shield
CN117753737A (en) * 2024-01-16 2024-03-26 中电建铁路建设投资集团有限公司 An air-cushion balanced mud-water shield mud-water tank sediment and pipeline lag treatment method
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CN120487143B (en) * 2025-07-17 2025-09-16 中铁十四局集团有限公司 A shield machine slag discharge system with variable grouting density

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Application publication date: 20190115