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Steel sheet pile cofferdam constructing method

A technology of steel sheet pile cofferdam and construction method, which is applied to sheet pile walls, foundation structure engineering, construction, etc., can solve problems such as difficulty in construction, slow progress, and influence on project progress, and achieve the effect of improving construction quality

Inactive Publication Date: 2015-01-21
SINOHYDRO ENG BUREAU 4 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, during the construction of the steel sheet pile cofferdam, due to the geology and hydrology of the site where the project is located, as well as the material of the steel sheet pile itself, it will cause problems such as difficulty in construction and slow progress, which seriously affects the progress of the project

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  • Steel sheet pile cofferdam constructing method
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Embodiment Construction

[0047] Functional Overview

[0048] The present invention is made in consideration of the problems in the construction of steel sheet pile cofferdams. Therefore, the main purpose of the present invention is to provide an efficient steel sheet pile cofferdam construction scheme to solve related problems.

[0049] Embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other, all within the protection scope of the present invention. In addition, for ease of description, step numbers are used hereinafter, but this should not be construed as a limitation to the present invention. In addition, although the various steps described in the following methods show a logical order in the flowchart, in some cases In this case, the steps shown or described may be performed i...

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Abstract

The invention relates to the technical field of cofferdam construction, particularly to a steel sheet pile cofferdam constructing method. The method comprises (1) preparation; (2) steel sheet pile plugging and driving including mounting a first support ring beam as a guide frame for pile plugging and driving, during the pile plugging and driving, enabling the backs of steel sheet piles to be close to the guide frame, slowly lowering a lifting hook over the pile plugging and driving to ensure alignment and straightness of the steel sheet piles; (3) steel sheet pile closure including closing the steel sheet piles in the plugging order from the surrounding sides to the four corners; (4) foundation pit digging including performing cap foundation pit earth digging through a high-front shovel, and sucking soil through a mud pump in a layered, partitioned and symmetric mode; (5) concrete ground sealing including performing ground-sealing concrete underwater filling on the bottom of the cofferdam; (6) steel sheet pile cofferdam support including, when the strength of underwater concrete reaches 75% of a design strength, pumping water to achieve wailing support construction.

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] Sheet pile cofferdam is a commonly used sheet pile cofferdam. Steel sheet pile is a kind of section steel with lock. Its cross-section has straight plate shape, trough shape and Z shape, etc. There are various sizes and interlocking forms. The common ones are Larson type and Lackawanna type. [0003] The advantages of steel sheet pile cofferdams are: high strength, easy to drive into hard soil layers; good waterproof performance, can be constructed in deep water; cofferdams of various shapes can be formed according to needs, and can be reused many times. Therefore, it has a wide range of uses. [0004] However, during the construction of the steel sheet pile cofferdam, due to the geology and hydrology of the site where the project is located, as well as the material of the steel sheet...

Claims

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Application Information

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IPC IPC(8): E02D19/04E02D7/00
CPCE02D19/04E02D5/08E02D7/18E02D2250/0023E02D2250/0061
Inventor 席浩梁国辉高元荣汪庆发祁海青周尚军铁福春吕建伟张杰
Owner SINOHYDRO ENG BUREAU 4
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