CN209837060U - Steel sheet pile cofferdam - Google Patents

Steel sheet pile cofferdam Download PDF

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Publication number
CN209837060U
CN209837060U CN201822279275.XU CN201822279275U CN209837060U CN 209837060 U CN209837060 U CN 209837060U CN 201822279275 U CN201822279275 U CN 201822279275U CN 209837060 U CN209837060 U CN 209837060U
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China
Prior art keywords
cofferdam
steel sheet
platform
sheet pile
guide
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CN201822279275.XU
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Chinese (zh)
Inventor
薛斌
肖必忠
吕荣海
李斌
姚光群
冯嘉佳
李艾梅
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Anhui Road and Bridge Engineering Co Ltd
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Anhui Road and Bridge Engineering Co Ltd
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Priority to CN201822279275.XU priority Critical patent/CN209837060U/en
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Abstract

The utility model relates to a steel sheet pile cofferdam, including steel pile casing, horizontal support, longitudinal support, balanced sand bag, hoist engine, lifting platform and special-shaped steel sheet pile, the cofferdam top sets up horizontal support and longitudinal support, the vertical and horizontal support below is equipped with the steel pile casing, be equipped with the triangular support on the steel pile casing of edge all around, be equipped with the direction platform on the triangular support, the direction platform top is equipped with lifting platform, place the hoist engine on lifting platform, the hoist engine is through lifting platform with balanced sand bag put in the cofferdam both sides; the cofferdam is formed by assembling and splicing Larsen steel sheet piles, and four corners of the cofferdam are folded through special-shaped steel sheet piles. The utility model has the advantages that: the utility model utilizes the hoist to control the sand bag to ascend and descend, thereby not only improving the shock resistance, but also being convenient for recovery; the guide sharp rib is arranged on the outer side of the guide platform of the utility model, which can guide the steel sheet pile to be transferred; the utility model discloses a dysmorphism steel sheet pile can realize folding fast in cofferdam.

Description

Steel sheet pile cofferdam
Technical Field
The utility model belongs to the cofferdam field especially relates to a steel sheet pile cofferdam.
Background
The cofferdam is a temporary enclosure structure constructed for constructing permanent water conservancy facilities in the water conservancy project construction. The cofferdam has the functions of preventing water and soil from entering the building position of the building so as to drain water in the cofferdam, excavate a foundation pit and build the building. The cofferdam is mainly used in hydraulic buildings in general, and the cofferdam is dismantled after being used up except for being used as a part of a formal building. The cofferdam height is higher than the highest water level that may occur during construction. Because the water exists in the inner side and the outer side of the cofferdam, when the water in the cofferdam is discharged to the outer side by using the water pump, the water head at the outer side is higher than the inner layer, and lateral pressure is generated to extrude the cofferdam, so that sand is filled around the cofferdam. The traditional method is to fill sand around the cofferdam, but the sand filling mode is easily dispersed by water flow in the cofferdam, the sand filling effect is reduced, and sand and soil are not easy to recover after the construction is finished, thereby causing economic waste and environmental pollution.
Therefore, the invention of a steel sheet pile cofferdam which can fill sand efficiently and is easy to recover is needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough among the prior art, provide a steel sheet pile cofferdam.
The steel sheet pile cofferdam comprises a steel pile casing, transverse supports, longitudinal supports, balanced sand bags, a winch, a lifting platform and special-shaped steel sheet piles, wherein the transverse supports and the longitudinal supports are arranged at the top of the cofferdam; the cofferdam is formed by assembling and splicing Larsen steel sheet piles, and four corners of the cofferdam are folded through special-shaped steel sheet piles.
Preferably, the method comprises the following steps: the outer side of the guide platform is provided with guide pointed ribs, Larsen steel plate piles are arranged along the guide pointed ribs and connected through joints, special-shaped steel plate piles are arranged between the Larsen steel plate piles at the folding position and connected with the Larsen steel plate piles through the joints.
Preferably, the method comprises the following steps: the guide platform is connected through an inclined support.
Preferably, the method comprises the following steps: the triangular supports comprise supporting plates, inclined struts and protective cylinder connecting plates, the protective cylinder connecting plates are welded on the steel protective cylinders, the supporting plates are arranged on the protective cylinder connecting plates, and the inclined struts are welded between the protective cylinder connecting plates and the supporting plates.
Preferably, the method comprises the following steps: the balance sand bag is connected with a lifting rope, and one end of the lifting rope is connected with a winch.
Preferably, the method comprises the following steps: the lifting platform is internally provided with a lifting port.
The utility model has the advantages that:
(1) the utility model discloses utilize the rising and the decline of hoist engine control sand bag, both can improve shock resistance, be convenient for again retrieve.
(2) The utility model discloses a direction platform outside is provided with the pointed rib of direction, can guide transferring of steel sheet pile.
(3) The utility model discloses a dysmorphism steel sheet pile can realize folding fast in cofferdam.
Drawings
FIG. 1 is a top view of a steel sheet pile cofferdam;
FIG. 2 is a detail view at A in FIG. 1;
FIG. 3 is a detail view at B of FIG. 1;
fig. 4 is a schematic view of a profiled steel sheet pile;
fig. 5 is a sectional view a-a in fig. 1.
Description of reference numerals: 1-Larsen steel sheet pile; 2-special-shaped steel sheet piles; 3-a joint; 4-steel casing; 5, obliquely supporting; 6, transverse supporting; 7, longitudinal support; 8, a guide platform; 9-guide sharp rib; 10-lifting rope; 11-lifting the platform; 12-lifting port; 13-balancing the sand bag; 14-a winch; and 15, supporting by a triangle.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
The steel sheet pile cofferdam comprises a steel pile casing 4, a transverse support 6, a longitudinal support 7, a balance sand bag 13, a winch 14, a lifting platform 11 and a special-shaped steel sheet pile 2, wherein the transverse support 6 and the longitudinal support 7 are arranged at the top of the cofferdam, the steel pile casing 4 is arranged below the longitudinal support and the transverse support, triangular supports 15 are arranged on the steel pile casing 4 at the periphery, a guide platform 8 is arranged on each triangular support 15, the lifting platform 11 is arranged at the top of the guide platform 8, the winch 14 is arranged on the lifting platform 11, and the balance sand bag 13 is placed on two sides of the cofferdam by the winch 14 through the lifting platform 11, so that the impact resistance and the stability of the cofferdam are improved; the cofferdam is formed by assembling Larsen steel sheet piles 1, and four corners of the cofferdam are folded through special-shaped steel sheet piles 2.
The outer side of the guide platform 8 is provided with guide pointed ribs 9, the Larsen steel sheet piles 1 are placed along the guide pointed ribs 9, the Larsen steel sheet piles 1 are connected through joints 3, special-shaped steel sheet piles 2 are arranged between the Larsen steel sheet piles 1 at the folding position, and the special-shaped steel sheet piles 2 are connected with the Larsen steel sheet piles 1 through the joints 3.
The guide platform 8 is connected through the inclined support 5, and the stability of the guide platform 8 is improved.
The triangular supports 15 comprise supporting plates, inclined struts and protective cylinder connecting plates, the protective cylinder connecting plates are welded on the steel protective cylinders 4, the supporting plates are arranged on the protective cylinder connecting plates, and the inclined struts are welded between the protective cylinder connecting plates and the supporting plates.
The balance sand bag 13 is connected with a lifting rope 10, and one end of the lifting rope 10 is connected with a winch 14.
A lifting port 12 is arranged in the lifting platform 11.
The construction method of the steel sheet pile cofferdam comprises the following steps:
1) and (4) prefabricating a steel protective cylinder. The steel pile casing 4 is prefabricated, and a triangular support 15 is welded on the pile casing with a supporting function and used for supporting the guide platform 8.
2) And constructing the steel casing 4. And hoisting the steel casing 4 to a construction site by using a crane, wherein the position of the steel casing 4 is required to correspond to the design scheme.
3) A guiding platform 8 is placed. The guiding platform 8 is placed on the triangular support 15.
4) And constructing the diagonal braces 5. An inclined support 5 is arranged on the adjacent guide platforms 8, so that the two guide platforms 8 are connected together, and the stability is improved.
5) And (5) constructing the cofferdam. And (3) lowering the Larsen steel sheet pile 1 along the guide pointed ribs 9 on the guide platform 8 by using a crane until the steel sheet pile is placed at the bottom of the field. Four corners of the cofferdam are used as closure openings, and the Larsen steel sheet piles 1 at the closure positions are spliced by the special-shaped steel sheet piles 2.
6) And (5) carrying out longitudinal and transverse supporting construction. And longitudinal and transverse supports are arranged at the top of the cofferdam so as to improve the stability of the cofferdam.
7) And (5) constructing a balance sand bag 13. On top of the guiding platform 8 a lifting platform 11 is placed and on the lifting platform 11 a hoisting machine 14 is placed. A lifting rope 10 is connected to the balance sand bag 13, one end of the lifting rope 10 is connected to a winch 14, and the winch 14 controls the balance sand bag 13 to lift or descend.

Claims (6)

1. The steel sheet pile cofferdam is characterized in that: the steel pile cofferdam comprises steel pile casings (4), transverse supports (6), longitudinal supports (7), balance sand bags (13), a winch (14), a lifting platform (11) and special-shaped steel sheet piles (2), wherein the transverse supports (6) and the longitudinal supports (7) are arranged at the top of the cofferdam, the steel pile casings (4) are arranged below the longitudinal and transverse supports, triangular supports (15) are arranged on the steel pile casings (4) at the peripheral edges, guide platforms (8) are arranged on the triangular supports (15), the lifting platform (11) is arranged at the top of each guide platform (8), the winch (14) is placed on the lifting platform (11), and the balance sand bags (13) are placed on the two sides of the cofferdam by the winch (14) through the lifting platforms (11); the cofferdam is formed by assembling Larsen steel sheet piles (1), and four corners of the cofferdam are folded through special-shaped steel sheet piles (2).
2. The steel sheet pile cofferdam of claim 1, wherein: the outer side of the guide platform (8) is provided with guide pointed ribs (9), the Larsen steel plate piles (1) are placed along the guide pointed ribs (9), the Larsen steel plate piles (1) are connected through joints (3), special-shaped steel plate piles (2) are arranged between the Larsen steel plate piles (1) at the folding position, and the special-shaped steel plate piles (2) are connected with the Larsen steel plate piles (1) through the joints (3).
3. The steel sheet pile cofferdam of claim 1, wherein: the guide platform (8) is connected through an inclined support (5).
4. The steel sheet pile cofferdam of claim 1, wherein: the triangular supports (15) comprise supporting plates, inclined struts and protective cylinder connecting plates, the protective cylinder connecting plates are welded on the steel protective cylinders (4), the supporting plates are arranged on the protective cylinder connecting plates, and the inclined struts are welded between the protective cylinder connecting plates and the supporting plates.
5. The steel sheet pile cofferdam of claim 1, wherein: the balance sand bag (13) is connected with a lifting rope (10), and one end of the lifting rope (10) is connected with a winch (14).
6. The steel sheet pile cofferdam of claim 1, wherein: a lifting port (12) is arranged in the lifting platform (11).
CN201822279275.XU 2018-12-30 2018-12-30 Steel sheet pile cofferdam Active CN209837060U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822279275.XU CN209837060U (en) 2018-12-30 2018-12-30 Steel sheet pile cofferdam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822279275.XU CN209837060U (en) 2018-12-30 2018-12-30 Steel sheet pile cofferdam

Publications (1)

Publication Number Publication Date
CN209837060U true CN209837060U (en) 2019-12-24

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ID=68901353

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822279275.XU Active CN209837060U (en) 2018-12-30 2018-12-30 Steel sheet pile cofferdam

Country Status (1)

Country Link
CN (1) CN209837060U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113062341A (en) * 2021-03-31 2021-07-02 广州市市政集团有限公司 8 font CT hasp steel-pipe pile and larsen steel sheet pile combination cofferdam structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113062341A (en) * 2021-03-31 2021-07-02 广州市市政集团有限公司 8 font CT hasp steel-pipe pile and larsen steel sheet pile combination cofferdam structure
CN113062341B (en) * 2021-03-31 2022-04-12 广州市市政集团有限公司 8 font CT hasp steel-pipe pile and larsen steel sheet pile combination cofferdam structure

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