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Steel sheet pile cofferdam construction method

A technology of steel sheet pile cofferdam and construction method, which is applied in the direction of sheet pile wall, foundation structure engineering, construction, etc., can solve the problems of limited scope of application, low turnover efficiency, high processing and manufacturing requirements, etc., to reduce river pollution, reduce Small quality problems, high controllable effect

Pending Publication Date: 2022-05-13
CHINA COMM 2ND NAVIGATIONAL BUREAU 2ND ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Based on this, it is necessary to provide a steel sheet pile cofferdam construction method for the problems of high processing and manufacturing requirements, low turnover efficiency and limited application scope of the existing steel sheet pile cofferdam

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  • Steel sheet pile cofferdam construction method
  • Steel sheet pile cofferdam construction method
  • Steel sheet pile cofferdam construction method

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0040] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected ...

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Abstract

The steel sheet pile cofferdam construction method comprises the steps that guide holes are constructed, sleeves are arranged outside the guide holes, the adjacent guide holes are engaged with each other, and a closed area is defined by the multiple sets of guide holes; the guide hole is backfilled with sandy soil, the sleeve is gradually pulled out in the sandy soil backfilling process, and after the sandy soil is backfilled to the bottom elevation of the riverbed, the sleeve is completely pulled out; the steel sheet piles are sunk into the backfilled sandy soil, grouting reinforcement is conducted on the backfilled sandy soil, and a cofferdam is defined by the multiple sets of steel sheet piles; the cofferdam is pumped, and a foundation pit is excavated in the cofferdam. According to the steel sheet pile cofferdam construction method, it is guaranteed that the steel sheet piles smoothly sink into the bedrock by means of the backfilled sandy soil, collapse of the pebble bed is prevented, the water stopping effect of the steel sheet pile cofferdam is improved through grouting, the construction risk is reduced, the design target is achieved, and remarkable social benefits and economic benefits are obtained.

Description

technical field [0001] The invention relates to the technical field of cofferdam construction, in particular to a steel sheet pile cofferdam construction method. Background technique [0002] Due to the navigation requirements in the river basin, the underwater bearing platform is usually designed as an embedded type, which has made a great contribution to the problem of flood drainage and navigation. In the river basins of our country, the cracks in the bedrock of the river bed are wide and sparse, and the thickness of the covering layer is uneven, and most of them belong to the national nature reserve. Under the conditions of many construction conditions, steel cofferdams are generally used for the construction of caps. The current steel cofferdam construction methods are as follows: [0003] One is to use double-wall steel cofferdams. The advantage of this method is that the overall rigidity of the structure is the largest, and it is suitable for deep water foundations. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D19/04E02D5/04
CPCE02D19/04E02D5/04
Inventor 唐栋梁王鹏黄祖其何志军杨胜胡阳阳张丁川王楷陈冲张奇隆曹鑫林王孝国王辉
Owner CHINA COMM 2ND NAVIGATIONAL BUREAU 2ND ENG
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