CN204570711U - A kind of assembled steel reinforced concrete cofferdam - Google Patents

A kind of assembled steel reinforced concrete cofferdam Download PDF

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Publication number
CN204570711U
CN204570711U CN201520187066.6U CN201520187066U CN204570711U CN 204570711 U CN204570711 U CN 204570711U CN 201520187066 U CN201520187066 U CN 201520187066U CN 204570711 U CN204570711 U CN 204570711U
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CN
China
Prior art keywords
wallboard
cofferdam
lateral
concrete
stake
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Expired - Fee Related
Application number
CN201520187066.6U
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Chinese (zh)
Inventor
孙克强
李松
陈圆圆
李哲
刘国鹏
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.)
CCCC Second Highway Engineering Co Ltd
CCCC SHB Fourth Engineering Co Ltd
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CCCC Second Highway Engineering Co Ltd
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Priority to CN201520187066.6U priority Critical patent/CN204570711U/en
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Publication of CN204570711U publication Critical patent/CN204570711U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relate to foundation in water construction enclose water-bound, be specifically related to a kind of assembled steel reinforced concrete cofferdam, cofferdam by between stake lateral, base plate, wallboard and shaped steel lateral assemble be spliced, between stake, lateral is between the netted steel pile casting be arranged on outside each hole stake, floor level is laid between stake in lateral, base plate top casting bottom concrete, wallboard is vertically centered around the edge placement of bottom concrete, arrange shaped steel lateral between wallboard and steel pile casting to be connected and fixed, the utility model is by traditional integral concrete cofferdam wallboard, base plate is all designed to fabricated construction, in precast yard's piecemeal processing, block is assemblied into entirety at the scene, when not only solving the construction of large-scale foundation in water, large scale structure lifting difficulty, the difficult problem that positioning precision is difficult to ensure card is installed, and, save material, reduce cost to drop into, easy for installation, save the duration.

Description

A kind of assembled steel reinforced concrete cofferdam
Technical field
The utility model relate to foundation in water construction enclose water-bound, be specifically related to a kind of assembled steel reinforced concrete cofferdam.
Background technology
Foundation in water construction is the heavy Technology Difficulties of bridge construction always, at present, and the more employing steel cofferdam construction in water Bridge basis.Steel cofferdam has the feature of portable construction, but comparatively concrete structure cost is high.In recent years, some bridges start to adopt concrete cofferdam to carry out foundation construction.
Traditional concrete cofferdam generally adopts monolithic, and after namely back court is prefabricated into entirety, transportation by driving, to on-the-spot, then utilize large-scale floating hoisted in position, finally builds bottom concrete, draw water, dry construction cushion cap foundation.
Integral concrete cofferdam is comparatively suitable for small bridge cushion cap, and for the larger cushion cap of physical dimension, cofferdam size and weight also strengthen thereupon, and cause prefabricated, transportation by driving, on-site hoisting construction cost to improve, construction economy is poor.
Utility model content
The purpose of this utility model overcomes existing integral concrete cofferdam for the larger cushion cap of physical dimension, and cofferdam size and weight also strengthen thereupon, causes prefabricated, transportation by driving, on-site hoisting construction cost to improve, the problem that construction economy is poor.
For this reason, the utility model provides a kind of assembled steel reinforced concrete cofferdam, and cofferdam is assembled by lateral, base plate, wallboard and shaped steel lateral between stake and is spliced;
Between described stake, lateral is between the netted steel pile casting be arranged on outside each hole stake, floor level is laid between stake in lateral, base plate top casting bottom concrete, wallboard is vertically centered around the edge placement of bottom concrete, arranges shaped steel lateral and be connected and fixed between wallboard and steel pile casting.
Described base plate is spliced by multiple monolithic concrete floor, and the outer being positioned at the monolithic concrete floor of outermost is provided with side plate, and the height of described side plate is higher than bottom concrete top 10 ~ 20mm.
Be provided with reverse bracket inside described wallboard, wallboard is hung on the end face edge placement of bottom concrete by reverse bracket, and, between reverse bracket and the end face of bottom concrete, be provided with temporary cushion block.
Described wallboard is spliced by multiple block, and each block stitching portion is provided with rubber water-proof bar.
Described wallboard inside wall is provided with pre-embedded steel slab, and shaped steel lateral fixes wallboard by connection pre-embedded steel slab and steel pile casting.
The horizontal and vertical of described wallboard inside is provided with through prestressed reinforcement installing hole, prestressed reinforcement is installed with in prestressed reinforcement installing hole, prestressed reinforcement two ends are provided with anchor head, and the aperture place of prestressed reinforcement installing hole is provided with bearing plate, and anchor head is stuck on bearing plate.
Reverse bracket inside described wallboard and be cast with sealing quick-setting mortar between the temporary cushion block of bottom concrete top.
The beneficial effects of the utility model:
1, conventional concrete cofferdam is integral prefabricated lifting, the utility model adopts assembled steel reinforced concrete cofferdam, back court precast block, and in-site installation integrally, when solving the construction of large-scale foundation in water, large scale structure lifting difficulty, installation positioning precision are difficult to ensure a difficult problem for card.
2, the relative steel cofferdam of the utility model, while a technical solution difficult problem, have save material, reduce cost drop into, easy for installation, save the advantage of duration.
Below with reference to accompanying drawing, the utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is reinforced concrete bi-flexural beam overall structure elevational schematic view.
Fig. 2 is reinforced concrete bi-flexural beam base arrangement block diagram.
Fig. 3 is reinforced concrete bi-flexural beam floor pack detail of construction.
Fig. 4 is reinforced concrete bi-flexural beam wall panel structure front view.
Fig. 5 is reinforced concrete bi-flexural beam wall panel structure left view.
Fig. 6 is reinforced concrete bi-flexural beam wallboard prestressed reinforcement anchoring drawing.
Fig. 7 is that the utility model cofferdam construction process step one master looks design sketch.
Fig. 8 is that the utility model cofferdam construction process step one overlooks design sketch.
Fig. 9 is that the utility model cofferdam construction process step two master looks design sketch.
Figure 10 is that the utility model cofferdam construction process step two overlooks design sketch.
Figure 11 is that the utility model cofferdam construction process step three master looks design sketch.
Figure 12 is that the utility model cofferdam construction process step three overlooks design sketch.
Figure 13 is that the utility model cofferdam construction process step four master looks design sketch.
Figure 14 is that the utility model cofferdam construction process step four overlooks design sketch.
Figure 15 is that the utility model cofferdam construction process step five master looks design sketch.
Figure 16 is that the utility model cofferdam construction process step five overlooks design sketch.
Figure 17 is that the utility model cofferdam construction process step six master looks design sketch.
Figure 18 is that the utility model cofferdam construction process step seven master looks design sketch.
Figure 19 is that the utility model cofferdam construction process step seven overlooks design sketch.
Reference numeral is as follows:
1-base plate; 101-monolithic concrete floor; 102-side plate; 2-wallboard; 201-rubber water-proof bar; 202-oppositely bracket; 203-pre-embedded steel slab; 204-shaped steel lateral; 205-prestressed reinforcement installing hole; 206-prestressed reinforcement; 207-bearing plate; 208-anchor head; 3-bottom concrete; 4-temporary cushion block; 5-steel pile casting; 6-sealing quick-setting mortar; 7-loop wheel machine; Lateral between 8-stake.
Detailed description of the invention
Existing integral concrete cofferdam is for the larger cushion cap of physical dimension, cofferdam size and weight also strengthen thereupon, cause prefabricated, transportation by driving, on-site hoisting construction cost raising, construction economy is poor, for the problems referred to above, the utility model carries out innovative design to conventional concrete cofferdam, to meet large scale bearing platform construction needs.
Embodiment 1:
The present embodiment provides a kind of assembled steel reinforced concrete cofferdam, and as shown in Figure 1, cofferdam is assembled by lateral between stake 8, base plate 1, wallboard 2 and shaped steel lateral 204 and is spliced;
Between stake, lateral 8 is between the netted steel pile casting 5 be arranged on outside each hole stake, base plate 1 level is laid between stake in lateral 8, base plate 1 top casting bottom concrete 3, wallboard 2 is vertically centered around the edge placement of bottom concrete 3, arranges shaped steel lateral 204 and be connected and fixed between wallboard 2 and steel pile casting 5.
This cofferdam structure in the present embodiment, traditional integral concrete cofferdam wallboard, base plate are all designed to fabricated construction, in precast yard's piecemeal processing, block is assemblied into entirety at the scene, when solving the construction of large-scale foundation in water, large scale structure lifting difficulty, installation positioning precision are difficult to ensure a difficult problem for card.
Embodiment 2:
As shown in Figure 2, base plate 1 is spliced by multiple monolithic concrete floor 101, the outer being positioned at the monolithic concrete floor 101 of outermost is provided with side plate 102(as shown in Figure 3), the height of side plate 102 is higher than bottom concrete 3 top 10 ~ 20mm, like this, base plate 1 periphery, in L-type structure, can be used as side form when bottom concrete is built.
With reference to Fig. 4, be provided with reverse bracket 202 inside wallboard 2, wallboard 2 is hung on the end face edge placement of bottom concrete 3 by reverse bracket 202, and wallboard 2 weight is born by bottom concrete 3 and base plate 1.Further, between reverse bracket 202 and the end face of bottom concrete 3, temporary cushion block 4 is provided with.
Reverse bracket 202 inside wallboard 2 and bottom concrete 3 push up to be cast with between temporary cushion block 4 and seal quick-setting mortar 6, utilize sealing quick-setting mortar 6 that sealing is filled up in space between wallboard 2 and base plate 1, make cofferdam reach the effect of water shutoff, finally draw water in cofferdam, dry construction cushion cap.
Embodiment 3:
The present embodiment makes improvements on the basis of embodiment 1 and embodiment 2, and wallboard 2 is spliced by multiple block, and each block stitching portion is provided with rubber water-proof bar 201.
When wallboard 2 is prefabricated wallboard 2 inside wall pre-buried pre-embedded steel slab 203, wallboard 2 is lifted after to bottom concrete 3, be connected with steel pile casting shaped steel lateral 204 by pre-embedded steel slab 203, with fixing cofferdam wallboard 2, shaped steel lateral 204 fixes wallboard 2 by connection pre-embedded steel slab 203 and steel pile casting 5.
Composition graphs 5 and Fig. 6, the horizontal and vertical of wallboard 2 inside is provided with through prestressed reinforcement installing hole 205, prestressed reinforcement 206 is installed with in prestressed reinforcement installing hole 205, prestressed reinforcement 206 two ends are provided with anchor head 208, the aperture place of prestressed reinforcement installing hole 205 is provided with bearing plate 207, and anchor head 208 is stuck on bearing plate 207.Prestressed reinforcement 206 is penetrated in the prestressed reinforcement installing hole 205 of wallboard 2, two ends stretch-draw anchor, to make wallboard 2 closely knit, then utilize the ebb tide period bottom concrete 3 push up and oppositely between bracket 202 space fill and seal quick-setting mortar 6, cofferdam is made to reach the effect of water shutoff, finally draw water in cofferdam, dry construction cushion cap.
Embodiment 4:
The present embodiment by reference to the accompanying drawings, provides a kind of concrete construction method of assembled steel reinforced concrete cofferdam, comprises the steps:
Step one: as shown in Figure 7, Figure 8, at pile foundation surrounding construction platform, as the beta site that assembled steel reinforced concrete cofferdam is constructed;
Step 2: as shown in Figure 9, Figure 10,1 loop wheel machine 7 is arranged in beta site, utilizes lateral 8 between loop wheel machine assembled stake, using the support platform of the base plate 1 as reinforced concrete bi-flexural beam;
Step 3: as shown in Figure 11, Figure 12, monolithic concrete floor 101, after back court precast block, is transported to scene, and when low tide, operation loop wheel machine 7 installs monolithic concrete floor 101 according to the order symmetry from centre to both sides, forms base plate 1;
Step 4: as shown in Figure 13, Figure 14, base plate 1 is assembled complete after, colligation bottom concrete reinforcing bar, then builds bottom concrete 3, builds when being generally selected in low tide;
Step 5: as shown in Figure 15, Figure 16, bottom concrete 3 is placed temporary cushion block 4, operation loop wheel machine 7 piecemeal installs wallboard 2, hang on bottom concrete 3 end face with the reverse bracket 202 inside wallboard 2 temporarily, then by shaped steel lateral 204, pre-embedded steel slab on wallboard 203 is connected with steel pile casting 5, temporary fixed wallboard 2;
Step 6: as shown in figure 17, prestressed reinforcement 206 is penetrated in the prestressed reinforcement installing hole 205 of wallboard 2, and two ends stretch-draw, anchoring, the space between the temporary cushion block 4 of building reverse bracket 202 and bottom concrete 3 end face with sealing quick-setting mortar 6, makes cofferdam reach the effect of closely knit water shutoff;
Step 7: as shown in Figure 18, Figure 19, draws water after checking cofferdam watertightness, cuts off steel pile casting 5 part above bottom concrete 3, cut pile crown in cofferdam, and then bearing platform construction is carried out in dry operation.
In sum, this assembled steel reinforced concrete cofferdam of the present utility model and cofferdam construction method thereof, traditional integral concrete cofferdam wallboard, base plate are all designed to fabricated construction, in precast yard's piecemeal processing, block is assemblied into entirety at the scene, and when not only solving the construction of large-scale foundation in water, large scale structure lifting difficulty, installation positioning precision are difficult to ensure a difficult problem for card, and, save material, minimizing cost drops into, easy for installation, the saving duration.
More than exemplifying is only illustrate of the present utility model, does not form the restriction to protection domain of the present utility model, everyly all belongs within protection domain of the present utility model with the same or analogous design of the utility model.

Claims (7)

1. an assembled steel reinforced concrete cofferdam, is characterized in that: cofferdam is assembled by lateral between stake (8), base plate (1), wallboard (2) and shaped steel lateral (204) and is spliced;
Between described stake, lateral (8) is between the netted steel pile casting (5) be arranged on outside each hole stake, base plate (1) level is laid between stake in lateral (8), base plate (1) top casting bottom concrete (3), wallboard (2) is vertically centered around the edge placement of bottom concrete (3), arranges shaped steel lateral (204) and be connected and fixed between wallboard (2) and steel pile casting (5).
2. assembled steel reinforced concrete cofferdam as claimed in claim 1, it is characterized in that: described base plate (1) is spliced by multiple monolithic concrete floor (101), the outer being positioned at the monolithic concrete floor (101) of outermost is provided with side plate (102), and the height of described side plate (102) is higher than bottom concrete (3) top 10 ~ 20mm.
3. assembled steel reinforced concrete cofferdam as claimed in claim 1, it is characterized in that: described wallboard (2) inner side is provided with reverse bracket (202), wallboard (2) is hung on the end face edge placement of bottom concrete (3) by reverse bracket (202), further, between reverse bracket (202) and the end face of bottom concrete (3), temporary cushion block (4) is provided with.
4. the assembled steel reinforced concrete cofferdam as described in claim 1 or 3, is characterized in that: described wallboard (2) is spliced by multiple block, and each block stitching portion is provided with rubber water-proof bar (201).
5. assembled steel reinforced concrete cofferdam as claimed in claim 4, it is characterized in that: described wallboard (2) inside wall is provided with pre-embedded steel slab (203), shaped steel lateral (204) is by connecting pre-embedded steel slab (203) and the fixing wallboard (2) of steel pile casting (5).
6. assembled steel reinforced concrete cofferdam as claimed in claim 5, it is characterized in that: described the horizontal and vertical of wallboard (2) inside is provided with through prestressed reinforcement installing hole (205), prestressed reinforcement (206) is installed with in prestressed reinforcement installing hole (205), prestressed reinforcement (206) two ends are provided with anchor head (208), the aperture place of prestressed reinforcement installing hole (205) is provided with bearing plate (207), and anchor head (208) is stuck on bearing plate (207).
7. the assembled steel reinforced concrete cofferdam as described in claim 1 or 2 or 3 or 5 or 6, is characterized in that: the reverse bracket (202) of described wallboard (2) inner side and bottom concrete (3) push up to be cast with between temporary cushion block (4) and seal quick-setting mortar (6).
CN201520187066.6U 2015-03-31 2015-03-31 A kind of assembled steel reinforced concrete cofferdam Expired - Fee Related CN204570711U (en)

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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105220699A (en) * 2015-09-21 2016-01-06 中铁建大桥工程局集团第一工程有限公司 Cofferdam construction method
CN105970982A (en) * 2016-06-06 2016-09-28 中国铁建港航局集团有限公司 Technology for prolonging cyclic service life of steel lifting box
CN107345399A (en) * 2017-08-17 2017-11-14 中交二航局第三工程有限公司 Light-high-strength concrete pre-stress assembled casing
CN107859047A (en) * 2017-09-25 2018-03-30 张啸 Precast concrete block combined cofferdam construction method
CN108951431A (en) * 2018-09-10 2018-12-07 北京欣江峰市政工程有限责任公司 Bridge concrete earth cofferdam and bridge pier building technology
CN110185050A (en) * 2019-04-25 2019-08-30 上海市政建设有限公司 A kind of concrete earth cofferdam and construction method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105220699A (en) * 2015-09-21 2016-01-06 中铁建大桥工程局集团第一工程有限公司 Cofferdam construction method
CN105970982A (en) * 2016-06-06 2016-09-28 中国铁建港航局集团有限公司 Technology for prolonging cyclic service life of steel lifting box
CN105970982B (en) * 2016-06-06 2018-06-19 中国铁建港航局集团有限公司 A kind of technique for improving steel lifted trunk service life cycle
CN107345399A (en) * 2017-08-17 2017-11-14 中交二航局第三工程有限公司 Light-high-strength concrete pre-stress assembled casing
CN107859047A (en) * 2017-09-25 2018-03-30 张啸 Precast concrete block combined cofferdam construction method
CN108951431A (en) * 2018-09-10 2018-12-07 北京欣江峰市政工程有限责任公司 Bridge concrete earth cofferdam and bridge pier building technology
CN110185050A (en) * 2019-04-25 2019-08-30 上海市政建设有限公司 A kind of concrete earth cofferdam and construction method

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C14 Grant of patent or utility model
GR01 Patent grant
C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20160912

Address after: 710065, No. eight, No. 262 East Road, Yanta District, Shaanxi, Xi'an

Patentee after: Zhongjiao Second Highway Engineering Bureau Co., Ltd.

Patentee after: CCCC Second Highway Fourth Engineering Co., Ltd.

Address before: 710065, No. eight, No. 262 East Road, Yanta District, Shaanxi, Xi'an

Patentee before: Zhongjiao Second Highway Engineering Bureau Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150819

Termination date: 20190331

CF01 Termination of patent right due to non-payment of annual fee