CN1399035A - Solidification method of railway bed ballast and use thereof - Google Patents
Solidification method of railway bed ballast and use thereof Download PDFInfo
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- CN1399035A CN1399035A CN 02130620 CN02130620A CN1399035A CN 1399035 A CN1399035 A CN 1399035A CN 02130620 CN02130620 CN 02130620 CN 02130620 A CN02130620 A CN 02130620A CN 1399035 A CN1399035 A CN 1399035A
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- roadbed
- high molecular
- molecular polymer
- ballast aggregate
- rubber
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- 238000000034 method Methods 0.000 title description 15
- 238000007711 solidification Methods 0.000 title 1
- 230000008023 solidification Effects 0.000 title 1
- 229920000642 polymer Polymers 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 6
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 6
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 5
- 239000004816 latex Substances 0.000 claims description 5
- 229920000126 latex Polymers 0.000 claims description 5
- 238000006116 polymerization reaction Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000003672 processing method Methods 0.000 claims 2
- 238000005516 engineering process Methods 0.000 abstract description 2
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- 238000005096 rolling process Methods 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
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- 238000005354 coacervation Methods 0.000 description 1
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- 230000002950 deficient Effects 0.000 description 1
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- 230000005021 gait Effects 0.000 description 1
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- 239000006028 limestone Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
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- Machines For Laying And Maintaining Railways (AREA)
- Railway Tracks (AREA)
Abstract
The present invention relates to the field of applying technology of railway bed material. Polymer is used in solidifying railway bed to eliminate or reduce the shift of ballast under the vibration of sleepers and tracks to avoid the integral subsidence of sleepers and tracks. The present invention makes it possible to reduce railway bed maintaining cost and lays down foundation for raising the speed of railway train.
Description
Technical field the invention belongs to railway bed basic material applied technical field.The present invention is cured processing by adopting high molecular polymer to railway bed (mainly being the roadbed ballast aggregate), thoroughly eliminate or greatly reduce the easy mobility that the roadbed ballast aggregate is produced under the effect of vertical tremor repeatedly at sleeper and rail (rail bar), thereby roadbed ballast aggregate phenomenon mobile and that sleeper, the whole sinking of rail (rail bar) are sunk will be solved at all, improve the safety of roadbed, reduce maintenance cost, workload and the working strength of railway bed, for solid foundation is established in the railroad train speed-raising.The present invention is being cured in the concrete constructing operation of processing railway bed (mainly being the roadbed ballast aggregate), and process is simple to operation, and it is fast to finish speed of application, with low cost, noiseless and other adverse effect to the operation of railway normal transport.
The background technology railway transportation occupies critical role in national economic development, the maintenance of railway bed is the important assurance that realizes safety of railway traffic.For the alleviation of Chinese Railway transportation freight volume pressure, the speed-raising in the railway operation is a comparatively economic solution.
At present, 130km/hr arrive in speed-raising basically, some highway section even can reach 160km/hr, but for the design F-Zero 180km/hr of locomotive (also have propose be 200km/hr's), the speed-raising aspect still has the potential to be tapped.This can be referred to as the secondary speed-raising.
For railway secondary speed-raising, the requirement of the raising on managerial skills, to its hardware foundation require even more importantly, mainly concentrate on rolling stock performance, rail (rail bar) performance and roadbed performance three aspects.By thermal expansion, rail (rail bar) seamless process of rail (rail bar) material being handled and speed increase in vehicle design work such as (as improving the design of rolling stock bogie), made train speed raising at present to 130km/hr.But the roadbed basis is ceternally immutable, and the basis is poor, does not meet speed-raising back technical requirements index, and this is the great reason and the defective of restriction train speed raising.
Roadbed basis role is: keep normal, rational roadbed plane, bear the load of sleeper and rail (rail bar) and car body.This just requires the roadbed Base Material to reach higher hardness technically, can bear high load capacity, sturdy and durable, be difficult for requirements such as flow deformation.
At home with external, the used material in roadbed basis adopts the ballast aggregate of the limestone material of irregular contour basically at present, and this type of roadbed ballast aggregate basis is after reinstating, and a century does not become so far.Its main cause is that it has the following advantages: 1) with low cost; 2) reserves are abundant, and processing can be obtained in a large number easily; 3) laying is convenient, and subfoundation is required simply, and subfoundation is smooth firmly to get final product; 4) hardness is higher, and is sturdy and durable, and other possible materials are difficult for flowing relatively; 5) be easy to maintenance, change easily; 6) water-permeable and air permeable is easy to draining, makes to be built on the rock.
But it also has following shortcoming: by in the process, the continuous spreading of car opinion for any sleepers, all is the process of a lot of vertical tremor repeatedly at train, and the motion of whole rail (rail bar) is with regard to a similar sine wave.So downward repeatedly active force that vertical tremor produced repeatedly acts on the roadbed ballast aggregate basis by each sleepers, under this active force, ballast aggregate has produced and has been extruded and escapes and produced lateral flow, ballast aggregate after acting on so repeatedly below the sleeper is fewer and feweri, engenders that the whole sinking of sleeper and rail (rail bar), ballast aggregate projection are piled up in the phenomenon between any two sleepers.
The normal situation of roadbed, sleeper and rail (rail bar) is seen the Fig. 1 in the Figure of description.
Roadbed, sleeper and rail (rail bar) situation after being subjected to repeatedly vertical tremor is seen the Fig. 2 in the Figure of description.
For roadbed, sleeper and rail suffered power such as (rail bars), the decomposition diagram is seen the Fig. 3 in the Figure of description.
For making roadbed return to normal condition, need regularly carry out the roadbed maintenance usually.Roadbed maintenance apparatus and the equipment such as the railway bed ballast aggregate tamper etc. of specialty are arranged on the railway, and huge roadbed maintenance workman troop is arranged.Such workload is normally a large amount of and heavy, and consumed cost is also very high.The flow process of big regular roadbed maintenance work is normally at first blocked the construction section, stop to intend the current and transportation in maintenance roadbed highway section, promote rail (rail bar) and sleeper with professional equipment, by railway bed ballast aggregate tamper, vibrations pick or pickax projection is piled up in ballast aggregate between any two sleepers then and paves, return below the sleeper.
Why the phenomenon that above-mentioned roadbed ballast aggregate flows and sleeper, the whole sinking of rail (rail bar) are sunk takes place, main cause is to lack inter-adhesive active force between the ballast aggregate, thereby has produced in the process of the vertical tremor repeatedly of sleeper and rail (rail bar) that ballast aggregate is extruded, escape and lateral flow.Suppose that roadbed material uses mobile bigger sand, then the whole phenomenon of sinking of mobile and sleeper, the rail (rail bar) of roadbed can reach more obvious sooner.
As bullet train, because speed is higher, then suffered power such as roadbed, sleeper and rail (rail bar) is more frequent, frequency corresponding increase of roadbed, sleeper and rail (rail bar) vertical tremor with the raising of train speed, the multiple that degree that this frequency increases and train speed improve is proportional, be train speed improve 1 times then frequency increase by 1 times, if train speed improves 2 times then frequency increases by 2 times.Equally, the multiple that speed that roadbed flows and sleeper, the whole phenomenon of sinking of rail (rail bar) produce and body speed of vehicle improve is also proportional, be that speed improves the speed that 1 times of phenomenon of then sinking produces and increases by 1 times, speed improves the speed that 2 times of phenomenons of then sinking produce and increases by 2 times.So speed-raising will increase the workload and the working strength of roadbed maintenance in a large number.That is, if raise speed 1 times, the workload of roadbed maintenance and working strength increase by 1 times, if raise speed 2 times, the workload of roadbed maintenance and working strength increase by 2 times.That is to say that the roadbed maintenance is 1 time every month when supposing that speed is 60km/hr, the roadbed maintenance should be 2 times every month in theory when raising speed to 120km/hr, and the roadbed maintenance should be 3 times every month in theory when raising speed to 180km/hr.And because train speed improves, train operation density increases, train number shortening off time, the roadbed maintenance can only be finished in off time at the train number that shortens, or blocks the laggard row of section, this will greatly increase working strength and difficulty, cause the adverse effect to railway transportation.
In sum, under the situation of speed-raising, the ballast aggregate flowing velocity is accelerated, and becomes the major reason that factors such as roadbed maintenance cost, working strength and difficulty increase dramatically, also will be the of paramount importance root that the speed-raising back potential accident of railway takes place.
For fundamentally addressing the above problem, it is considered herein that the most basic principle that addresses the above problem is to reduce the flowability of ballast aggregate.
The straightforward procedure of this basic principle of flowability of the reduction ballast aggregate that summary of the invention is described in the invention promptly is to make ballast aggregate mutually by adhesion, curing by certain means, thereby loses flowability or reduction flowability significantly.Concrete operations, can use some high molecular polymer such as butadiene-styrene latex, butylamine rubber, aniline rubber, liquid rubber or other high molecular polymer etc. to water on the roadbed ballast aggregate with certain compound, the mixture that optimum formula, ratio preparation form with single component or above-mentioned high molecular polymer, make under these liquid high molecular polymers (can be monomer whose) slit that is cut on the way seepage flow moving with certain viscosity, add full ballast aggregate slit and fast cohesion, pool time can be surplus ten second to 5 minutes.Best pool time is that these liquid high molecular polymers are cut on the way to ooze when flowing to the ballast aggregate bottom under the slit and begin to condense.Roadbed ballast aggregate after polymerization is solidified becomes as a whole, shows better elastic when being hit, and impact strength is very high.
Product after these liquid high molecular polymers condense should have following feature: 1) ballast aggregate is had powerful adhesion, and can ballast aggregate is bonding powerfully as a whole; 2) product after the cohesion should have certain elasticity, and is not crisp, the elasticity of rubber like, with guarantee roadbed, sleeper and rail (rail bar) up and down under the situation of the vibrations of high frequency the product after the cohesion do not rupture, durable toughness is arranged.3) general physics and chemistry situation is had certain resistance, specifically the temperature as ability 40-50 ℃ is not aging, and there have certain resistance to be difficult for to sunlight, rainwater etc. to be aging, and there have certain resistance to be difficult for to common pollutant on diesel oil, machine oil and other railways to be aging; 4) free from environmental pollution, be easy to repair, restore or cleaning after use for many years is aging.
Preceding liquid high molecular polymer (monomer) requirement of cohesion is taken place in these should have following feature: 1) safe, nontoxic, environmentally safe (environmental protection), no inflammable, no explosive; 2) liquid and have certain viscosity, stable in properties does not take place irreversiblely to solidify, condense at normal temperatures; 3) can condense fast, pool time can be surplus ten second to 5 minutes scopes, and coacervation process do not need complicated operations, constructing operation is simple; 4) less demanding to the ballast aggregate adhesive surface, to same high adhesion is arranged by the ballast aggregate of pollutions such as diesel oil, machine oil; 5) with low cost, and can produce in large quantities, the source of goods is abundant.
Through above-mentioned measure and process, ballast road red will lose its original runny characteristic under the effect repeatedly of the active force of vertical tremor, and the roadbed ballast aggregate flows and sleeper, the whole phenomenon of sinking of rail (rail bar) will be solved at all.
In work progress, can use tank car storage, transport liquid shape high molecular polymer (monomer), and in tank car car body traveling process, pour into a mould and lay by going out sparge pipe, make polymer cooperate the suitable gait of march of tank car with suitable flow velocity, can reach liquid high molecular polymer can be cast on the roadbed ballast aggregate equably and seepage flow to the ballast aggregate slit and covering roadbed ballast aggregate surface.Tank car by the design sketch that goes out sparge pipe and pour into a mould and lay referring to the Fig. 4 in the Figure of description.Such work progress simply and do not influence the normal transport operation of each train number substantially.
The mid point height of the paved surface in roadbed cross section, construction back should be a little more than the outside, and purpose is to make rainwater or the liquid abandon that abandons from train can be by the road bed that tilts a little flow to roadbed, and not Chu stay in road bed or under ooze.The design sketch in roadbed cross section, construction back is referring to the Fig. 5 in the Figure of description.
Fig. 1 in the description of drawings Figure of description is illustrated as the normal situation of roadbed, sleeper and rail (rail bar): the roadbed ballast aggregate is smooth.Fig. 2 in the Figure of description is illustrated as roadbed, sleeper and rail (rail bar) after being subjected to repeatedly vertical tremor, and the ballast aggregate projection is piled up between any two sleepers, the whole sinking of sleeper and rail (rail bar).Fig. 3 in the Figure of description is illustrated as suffered resolution of forces diagram such as roadbed, sleeper and rail (rail bar).In the car body running, the gravity of car body passes to rail (rail bar) and sleeper by the wheel that contacts with rail (rail bar), and gravity acts on roadbed ballast aggregate soil at last.The sleeper that is subjected to the direct compressing of wheel moves downward, and the sleeper of directly oppressing away from wheel moves upward.Rail (rail bar) and sleeper are with the vertical tremor that produces in the car body traveling process repeatedly.Fig. 4 in the Figure of description is illustrated as the effect that the tank car that loaded liquid high molecular polymer (monomer) is poured into a mould and laid by going out sparge pipe, and whole construction is finished in the tank car traveling process.Fig. 5 in the Figure of description is illustrated as the design sketch in roadbed cross section, construction back, the mid point height of the paved surface in roadbed cross section, construction back should be a little more than the outside, purpose is to make rainwater or the liquid abandon that abandons from train can be by the road bed that tilts a little flow to roadbed, and not Chu stay in road bed or under ooze.
Specific embodiment following examples have been done detailed description to concrete operation method of the present invention and purposes, but and do not mean that the restriction content of the present invention.
Embodiment 1
With the roadbed ballast aggregate pile up the cross section be trapezoidal, highly be the model of 20cm, high molecular polymer monomers such as butadiene-styrene latex are toppled over being cast on the model from upper surface, in about 2 minutes the complete flow model ballast aggregate of butadiene-styrene latex bottom, and polymerization is solidified gradually.It is very high to solidify back model impact strength, shows better elastic when being hit.
Claims (7)
1. existing railway bed ballast is become as a whole after by suitable processing method, make ballast aggregate, thereby lose flowability or reduce mobile significantly mutually by adhesion, curing.
2. according to claim 1, suitably processing method can be to use some high molecular polymer that the roadbed ballast aggregate is carried out pouring practice.
3. according to claim 2, high molecular polymer can be materials such as butadiene-styrene latex, butylamine rubber, aniline rubber, liquid rubber or other high molecular polymer.
4. according to claim 2, high molecular polymer can be with the monomer whose form roadbed ballast aggregate to be carried out pouring practice.
5. according to claim 2, materials such as high molecular polymer such as butadiene-styrene latex, butylamine rubber, aniline rubber, liquid rubber or other high molecular polymer can be to use single component or above-mentioned high molecular polymer to water on the roadbed ballast aggregate with certain compound, the mixture that optimum formula, ratio preparation form.
6. according to claim 1, become the railway bed road after as a whole, show suitable elasticity when being hit, impact strength is very high.
7. according to claim 1, the roadbed that polymerization is frozen into after as a whole will reduce railway bed maintenance cost, working strength and difficulty, for train speed raising provides basic condition, and will reduce the potential frequency happening in accident of speed-raising back railway and may greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130620 CN1399035A (en) | 2002-09-10 | 2002-09-10 | Solidification method of railway bed ballast and use thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130620 CN1399035A (en) | 2002-09-10 | 2002-09-10 | Solidification method of railway bed ballast and use thereof |
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| Publication Number | Publication Date |
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| CN1399035A true CN1399035A (en) | 2003-02-26 |
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| CN 02130620 Pending CN1399035A (en) | 2002-09-10 | 2002-09-10 | Solidification method of railway bed ballast and use thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663437B (en) * | 2007-04-24 | 2012-12-12 | 亨内克股份有限公司 | Method and device for foam filling of ballast beds |
| WO2013045548A1 (en) | 2011-09-29 | 2013-04-04 | Bayer Intellectual Property Gmbh | Apparatus and method for preparing a ballast bed |
| CN104562869A (en) * | 2014-12-12 | 2015-04-29 | 上海市基础工程集团有限公司 | Rail vibration absorption method used for tunnel construction of metro shield method and vibration absorption cushion |
| WO2020109267A1 (en) | 2018-11-27 | 2020-06-04 | Covestro Deutschland Ag | Method for preparing track bed |
-
2002
- 2002-09-10 CN CN 02130620 patent/CN1399035A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101663437B (en) * | 2007-04-24 | 2012-12-12 | 亨内克股份有限公司 | Method and device for foam filling of ballast beds |
| WO2013045548A1 (en) | 2011-09-29 | 2013-04-04 | Bayer Intellectual Property Gmbh | Apparatus and method for preparing a ballast bed |
| CN103031786A (en) * | 2011-09-29 | 2013-04-10 | 拜耳材料科技(中国)有限公司 | Device and method using the same to prepare ballast bed |
| CN103031786B (en) * | 2011-09-29 | 2016-02-10 | 拜耳材料科技(中国)有限公司 | Device and use it to prepare the method for ballast aggregate railway roadbed |
| CN104562869A (en) * | 2014-12-12 | 2015-04-29 | 上海市基础工程集团有限公司 | Rail vibration absorption method used for tunnel construction of metro shield method and vibration absorption cushion |
| WO2020109267A1 (en) | 2018-11-27 | 2020-06-04 | Covestro Deutschland Ag | Method for preparing track bed |
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