CN203639928U - Long rigidity pipe pile and short flexible plate pile combined deepwater coffer - Google Patents
Long rigidity pipe pile and short flexible plate pile combined deepwater coffer Download PDFInfo
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- CN203639928U CN203639928U CN201320875911.XU CN201320875911U CN203639928U CN 203639928 U CN203639928 U CN 203639928U CN 201320875911 U CN201320875911 U CN 201320875911U CN 203639928 U CN203639928 U CN 203639928U
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Abstract
The utility model discloses a long rigidity pipe pile and short flexible plate pile combined deepwater coffer, and relates to a bridge foundation construction device. The long rigidity pipe pile and short flexible plate pile combined deepwater coffer comprises steel sheet piles, steel pipe piles and a retaining ring beam. Every two adjacent steel pipe piles are connected with one steel sheet pile between the steel pipe piles through a fore shaft, the steel sheet piles are shorter than the steel pipe piles, each steel sheet pile is formed by movably splicing at least two Z-shaped sheet piles which can relatively rotate, the relative sliding can be limited through a shear nail, and the retaining ring beam only supports the steel pipe piles. According to the long rigidity pipe pile and short flexible plate pile combined deepwater coffer, consumed materials are fewer, the water sealing effect and the anti-scouring capability are better, and the operation is easier and more convenient.
Description
Technical field
The utility model relates to a kind of bridge foundation construction device, relates in particular to and is applicable to water-retaining cofferdam structure in deep water soft base stratum.
Background technology
Tradition deep water cofferdam construction:
For guaranteeing that bridge becomes bridge attractive in appearance and reduce the effect that blocks water to river course, bridge foundation designs generally take deep water cushion cap as main, water-retaining cofferdam structure becomes the key structure of foundation construction, and basis, current profundal zone is generally take steel jacket box, steel box, steel sheet-pile cofferdam and steel pipe pile cofferdam construction technology as main.
The limitation of tradition construction technology:
Traditional steel jacket box, steel box entirety are transferred technique crane gear waterborne are had relatively high expectations, long construction period, and cost is high, and stability to cofferdam of the hydrology, geological conditions and transfer precision and bring larger difficulty.And steel sheet-pile cofferdam is because self rigidity is less, less stable, need to arrange a lot of layers of inner support and just can be applied to deep water waters, and cumulative errors are difficult for correcting, and closure difficulty is large.Steel pipe pile cofferdam is in profundal zone successful Application, but because self rigidity is large, when inserted to play, cumulative errors are wayward, and stagnant water effect is not good enough, and consumptive material is more.
And further improve the steel pipe pile that proposes and U-shaped sheet pile to combine and the cofferdam that forms, and still exist consume material more, the flexible and protection against erosion performance of sheet pile needs further to be improved, and operation is simple not enough, fast.
Utility model content
The purpose of this utility model is: propose a kind of long rigidity pile tube and short flexible sheet pile combination deep water cofferdam, still less, sheet pile compliance and protection against erosion ability are better for consume material, and operation is simpler, quick.
The purpose of this utility model realizes by following technical proposals:
A kind of long rigidity pile tube and short flexible sheet pile combination deep water cofferdam, comprise steel sheet pile, steel pipe pile and waling, described steel pipe pile is connected with steel sheet pile therebetween by fore shaft, described steel sheet pile Length Ratio steel pipe pile is short, described steel sheet pile is made up of at least two Z-shaped plate stake moving jointings, between Z-shaped plate stake, can relatively rotate, and by the WELDING STUDS restriction relative sliding arranging, described waling is only supported on described steel pipe pile.
As selection, the described steel sheet pile 3-6m that buries.
As selection, described Z-shaped plate stake one end is bent to form pin thread, and the other end is bent to form box, and between two Z-shaped plate stakes, by described pin thread, interlock is connected with box phase.
As selection, the described maximum rotation angle between two Z-shaped plate stakes that is connected is 10 °.
As selection, in described waling, enclose and be also provided with inner support.
The main scheme of aforementioned the utility model and each further selection scheme thereof can independent assortment to form multiple schemes; be the utility model and can adopt also claimed scheme: as the utility model; each selection can be selected any combination with other; those skilled in the art can understand there is multiple combination according to prior art and common practise after understanding the present invention program, do not do exhaustive at this.
The each parts effect of the utility model:
Steel pipe pile, as the main load-carrying construction of combined cofferdam, need to have enough embedded depths, and steel sheet pile Length Ratio pile tube is short, only, as auxiliary water-retaining structure, is totally thought of as long rigidity pile tube and adds short flexible sheet pile combined cofferdam structure.Steel pipe pile embedded depth is mainly determined according to the self stability under water pressure, soil pressure, back cover concrete pressure and water currents.Steel sheet pile buries and only considers dash effect, selects 3-6m to meet according to geological condition.In conjunction with cushion cap back cover under water, cofferdam self rigidity is larger, can meet profundal zone stability requirement.
Rigid steel pipes stake and flexible sheet pile are combined, and steel pipe pile is connected with steel sheet pile therebetween by fore shaft, and waling structure is only supported on fore shaft pile tube, and sheet pile can be by self plastic deformation under hydraulic pressure, and fore shaft links closely mutually, strengthens water sealing effect.
Traditional U-shaped sheet pile is divided into two Z-shaped plate stakes by sheet pile design, increase a flex point, by the torsional angle between two sheet piles (maximum 10 °), sheet pile width can be adjusted at any time (take two AZ12 sheet piles as example, more than can tuning up or turning 4cm down), the compliance of relative spacing error while greatly having improved pile tube inserted to play.Meanwhile, by assembled Z-shaped plate stake activity and WELDING STUDS is set, locking sheet pile position, avoids relative sliding, but allows its relative rotation, and sheet pile just can lift by crane overall inserted to play simultaneously.
The beneficial effects of the utility model:
1, consider using fore shaft steel pipe pile as the main load-carrying construction of combined cofferdam, need to have enough embedded depths, steel sheet pile Length Ratio pile tube is short, only as auxiliary water-retaining structure.Hard and soft combination, stressed clear and definite, more save material.
2, waling is only supported on pile tube, departs from, under Water Pressure with sheet pile, sheet pile plastic deformation is linked closely mutually, strengthens water sealing effect, simultaneously, when riverbed local scour is more serious, sheet pile secondary can be sunk can meet back cover or requirement of shelter, protection against erosion ability is stronger.
3, sheet pile flexible design, traditional U-shaped sheet pile is resolved into two Z-shaped plate stakes, increase a flex point, by the torsional angle between two sheet piles (general 10 ° of 0 left and right), sheet pile width can arbitrarily be adjusted (take AZ12 sheet pile as example, more than just can tuning up between two or turning 4cm down, and traditional U-shaped sheet pile adjusting range is little, and width can only be turned down, can not tune up), the compliance of relative spacing error while greatly having improved pile tube inserted to play.Meanwhile, flexible reinforced, water sealing effect is better.
4, by assembled Z-shaped plate stake activity and WELDING STUDS is set, locking sheet pile position, avoids relative sliding, but allows its relative rotation, and sheet pile just can lift by crane overall inserted to play simultaneously, and the difficulty of high-altitude contraposition while avoiding monolithic lifting makes operation more simple, quick.
5,, after sheet pile flexible design, allow first inserted to play pile tube, then inserted to play sheet pile therebetween, adapting to the off normal in rigidity pile tube inserted to play process with flexible sheet pile, work progress is more easily controlled.Pile tube is divided into 2-5 root one and forms crossover and beat, be often independent individuality substantially across construction, pile does not exert an influence to construction in later period in earlier stage, as long as control verticality and the relative spacing of pile tube well, just can guarantee cofferdam fold, effectively eliminate the cumulative errors that alternately lifting produces.Existing steel sheet-pile cofferdam, steel pipe pile cofferdam and conventional steel pile tube and U-shaped sheet pile combine and the cofferdam of formation, employing order or alternately lifting mode, and like this, cumulative errors are difficult for correction, close up more difficult.
Accompanying drawing explanation
Fig. 1 is the use state general structure elevational schematic view of the utility model embodiment;
Fig. 2 is the use state general structure floor map of the utility model embodiment;
Fig. 3 is the location arrangements schematic diagram of the utility model embodiment steel sheet pile and steel pipe pile;
Fig. 4 is the syndeton schematic diagram of the utility model embodiment steel sheet pile and steel pipe pile;
Fig. 5 is the structural representation of the utility model embodiment steel sheet pile;
Fig. 6 is the arrangement schematic diagram of the utility model embodiment WELDING STUDS;
Fig. 7 is the construction process schematic diagram of the utility model embodiment;
Fig. 8 is the structural representation of the utility model embodiment positioning guiding rack;
Fig. 9 is the construction process schematic diagram of the utility model embodiment positioning guiding rack.
The specific embodiment
Below in conjunction with specific embodiments and the drawings, the utility model is further described.
As shown in Figures 1 to 6, a kind of long rigidity pile tube and short flexible sheet pile combination deep water cofferdam, comprise U-shaped steel sheet pile 1, steel pipe pile 2 and waling 3,3 of walings are supported on steel pipe pile 2, in waling 3, enclose and be also provided with inner support 4, steel pipe pile 2 is connected with a steel sheet pile 1 therebetween by fore shaft 21, steel sheet pile 1 Length Ratio steel pipe pile 2 is short, 3-6m only need bury, each steel sheet pile 1 forms by two Z-shaped plate stakes, 11 moving jointings, two 11 of Z-shaped plate stakes can relatively rotate, and limit relative sliding by the WELDING STUDS 12 arranging.Z-shaped plate stake 11 its one end are bent to form pin thread 101, and the other end is bent to form 11 of 102, two Z-shaped plate stakes of box, and by pin thread 101,102 phase interlocks are connected with box, and 11 maximum rotation angles of two Z-shaped plate stakes are 10 °.Steel pipe pile 2 is main load-carrying member, makes respective standard stake and turning stake according to pile cap shape, and the fore shaft on steel pipe pile 2 and steel sheet pile 1 are isometric, and apart from steel pipe pile 2 about 30cm distance suitable for reading, contraposition is inserted in convenient steel plate stake 1.
The construction method in above-mentioned deep water cofferdam:
1, as shown in Figure 7, starting point is selected upstream region, after upstream cofferdam inserted to play completes, can greatly reduce the impact of current on later stage cofferdam inserted to play location, is beneficial to the control of pile tube verticality.
2, closed position is selected downstream corner location, and due to the adjustable of corner's angle, corner closes up need not consider front period error, only needs to control fore shaft pile tube relative spacing, is beneficial to and closes up.
3, fore shaft steel pipe pile 2 rigidity are larger, and XianCheng's crossover is beaten the rear insertion steel sheet pile 1 of steel pipe pile 2, adapt to the rigid steel pipes stake 2 relative spacing error of constructing with flexible steel sheet pile 1, effectively eliminate cofferdam cumulative errors.
4, as shown in Figure 8, fore shaft pile tube needs positioning guiding rack accurately to locate, the main control of considering pile tube verticality and relative position of locating rack design.More than being generally adopted as 3 holes, often across can be more than inserted to play 2 piles.
5, locating rack each above positions as reference pegs across last pile, often should replace inserted to play across pile tube, take 4 hole locating racks as example, inserted to play order as shown in Figure 9, in figure numeral be pile tube inserted to play sequentially, wherein the 4th is second across reference pegs.
6, each inserted to play completes 1～2 across after steel pipe pile 2, and inserted to play is respective steel sheet pile 1 therebetween.When steel pipe pile 2 tops mouthful exist certain off normal, can utilize a Chain block adjustment top mouthful spacing to insert smoothly to realize steel sheet pile 1.In Fig. 7, numeral is pile tube inserted to play order, and the 36th is terminal, between 33 and 36 for closing up spacing, the 20th to the 36th for close up across, as dotted line in figure represents, close up across carrying out angle adjustment to guarantee 33 and 36 pile spacings.
7, after steel pipe pile 2 and sheet pile 1 inserted to play complete, waling 3 is installed, inner support 4 is installed again, and 3 of walings are supported on steel pipe pile 2, depart from sheet pile 1, under Water Pressure, sheet pile 11 just can link closely mutually in plastic deformation, strengthens water sealing effect, simultaneously, when riverbed local scour is more serious, can be by 1 two sinking certain altitudes of sheet pile.
Adopting cofferdam structure of the present utility model---long rigidity pile tube adds short flexible sheet pile combination deep water cofferdam, makes hard and soft combination, has reached saving material, easy construction, the object such as water sealing effect is good.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. one kind long rigidity pile tube and short flexible sheet pile combination deep water cofferdam, comprise steel sheet pile, steel pipe pile and waling, described steel pipe pile is connected with steel sheet pile therebetween by fore shaft, it is characterized in that: described steel sheet pile Length Ratio steel pipe pile is short, described steel sheet pile is made up of at least two Z-shaped plate stake moving jointings, between Z-shaped plate stake, can relatively rotate, and by the WELDING STUDS restriction relative sliding arranging, described waling is only supported on described steel pipe pile.
2. long rigidity pile tube as claimed in claim 1 and short flexible sheet pile combination deep water cofferdam, is characterized in that: the described steel sheet pile 3-6m that buries.
3. long rigidity pile tube as claimed in claim 1 and short flexible sheet pile combination deep water cofferdam, is characterized in that: described Z-shaped plate stake one end is bent to form pin thread, and the other end is bent to form box, and between two Z-shaped plate stakes, by described pin thread, interlock is connected with box phase.
4. long rigidity pile tube as claimed in claim 1 and short flexible sheet pile combination deep water cofferdam, is characterized in that: the described maximum rotation angle between two Z-shaped plate stakes that is connected is 10 °.
5. long rigidity pile tube as claimed in claim 1 and short flexible sheet pile combination deep water cofferdam, is characterized in that: in described waling, enclose and be also provided with inner support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875911.XU CN203639928U (en) | 2013-12-30 | 2013-12-30 | Long rigidity pipe pile and short flexible plate pile combined deepwater coffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875911.XU CN203639928U (en) | 2013-12-30 | 2013-12-30 | Long rigidity pipe pile and short flexible plate pile combined deepwater coffer |
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| Publication Number | Publication Date |
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| CN203639928U true CN203639928U (en) | 2014-06-11 |
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| CN201320875911.XU Expired - Fee Related CN203639928U (en) | 2013-12-30 | 2013-12-30 | Long rigidity pipe pile and short flexible plate pile combined deepwater coffer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064375A (en) * | 2015-08-17 | 2015-11-18 | 化学工业岩土工程有限公司 | Construction method of retaining and water stopping structure of foundation pit support |
| CN106192990A (en) * | 2016-09-22 | 2016-12-07 | 中船第九设计研究院工程有限公司 | A kind of steel pipe fore shaft node stake and making thereof |
| CN108699794A (en) * | 2015-10-13 | 2018-10-23 | 约翰·贾维 | Improvement of seawalls, retaining walls and similar structures using pin piles |
| CN113216228A (en) * | 2021-01-13 | 2021-08-06 | 中交第三航务工程局有限公司 | Construction process of combined pile cofferdam |
-
2013
- 2013-12-30 CN CN201320875911.XU patent/CN203639928U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064375A (en) * | 2015-08-17 | 2015-11-18 | 化学工业岩土工程有限公司 | Construction method of retaining and water stopping structure of foundation pit support |
| CN108699794A (en) * | 2015-10-13 | 2018-10-23 | 约翰·贾维 | Improvement of seawalls, retaining walls and similar structures using pin piles |
| US10731312B2 (en) | 2015-10-13 | 2020-08-04 | Armour Wall Group Pty Ltd | Sea walls, retaining walls and like structures using pin piles |
| CN106192990A (en) * | 2016-09-22 | 2016-12-07 | 中船第九设计研究院工程有限公司 | A kind of steel pipe fore shaft node stake and making thereof |
| CN113216228A (en) * | 2021-01-13 | 2021-08-06 | 中交第三航务工程局有限公司 | Construction process of combined pile cofferdam |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU Effective date: 20150731 Owner name: CHINA COMMUNICATIONS 2ND NAVIGATIONAL BUREAU Free format text: FORMER OWNER: CCCCSHEC FOURTH ENGINEERING CO., LTD. Effective date: 20150731 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150731 Address after: 430048 Wuhan, East Lake District, Hubei Jin Lake Road, No. 11 Patentee after: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. Address before: 241009 Anhui Province, Wuhu city innovation road Jiujiang Economic Development Zone on the west side of the Integrated Service District 1 Building 1 layer Patentee before: CCCC SHEC FOURTH ENGINEERING Co.,Ltd. Patentee before: CCCC SECOND HARBOR ENGINEERING Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20211230 |