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Supporting and construction method of steel sheet pile under soft foundation of high flow plastic deep layer

A construction method and technology of steel sheet piles, which are applied to sheet pile walls, infrastructure engineering, excavation, etc., can solve the problems of difficult disassembly and reuse, uneconomical construction, large amount of consumables, etc., to prevent piping, and the construction process is simple and easy. , to ensure the effect of construction quality

Inactive Publication Date: 2015-01-21
深圳市兴班建筑工程有限公司 +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that it will leave a permanent support structure in the foundation pit, and consume a lot of materials (reinforced concrete consumption), which is uneconomical and has a long construction period for underground foundation structures that do not require permanent support.
However, welding is required for connection, and it is difficult to disassemble and reuse

Method used

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  • Supporting and construction method of steel sheet pile under soft foundation of high flow plastic deep layer
  • Supporting and construction method of steel sheet pile under soft foundation of high flow plastic deep layer
  • Supporting and construction method of steel sheet pile under soft foundation of high flow plastic deep layer

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Experimental program
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Effect test

Embodiment 1

[0031] The steel sheet pile support construction under the deep soft foundation in this embodiment goes through the following steps (mainly refer to Figure 4 ):

[0032] The first step, construction preparation - build a drainage ditch 1 around the foundation pit, and arrange drainage wells at the four corners of the pit to pump out the groundwater; the steel sheet pile locks are evenly coated with mixed oil, and the volume ratio of the mixed oil is butter: dry bentonite: Dry sawdust = 5:4-6:2-4, this kind of mixed oil has low cost and good waterproof sealing effect; when necessary, the surface of the steel sheet pile should be painted with anti-corrosion paint, and the water-stop sealant should be used to coat the lock of the steel sheet pile to ensure anti-corrosion. , sealing effect.

[0033] The second step is to construct the guiding purlins - the rectangular guiding purlins 3 of the frame structure are welded according to the inner profile of the foundation pit, and th...

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Abstract

The invention relates to supporting and construction method of a steel sheet pile under soft foundation of a high flow plastic deep layer, and belongs to the technical field of building construction. The supporting and construction method of the steel sheet pile under the soft foundation of the high flow plastic deep layer comprises the steps of construction preparation, construction of guiding purlins, injection of a steel sheet pile, excavation and water drainage, foundation trench interior construction and removing of the steel sheet pile. The supporting and construction method of the steel sheet pile under the soft foundation of the high flow plastic deep layer is simple and easy to implement during the construction process, is easy to popularize, and can effectively stop water and prevent piping, and almost all supporting and protecting facilities can be reused after being disassembled.

Description

technical field [0001] The invention relates to a foundation pit support construction method, in particular to a steel sheet pile support construction method under a high-fluid plastic deep soft foundation, and belongs to the technical field of building construction. Background technique [0002] With the increasing complexity of the built environment, it is often encountered that infrastructure construction is carried out in disadvantaged areas such as seaside. In these "bad" areas, the amount of silty land is huge, and the silt is deep, which brings challenges to engineering construction - the construction of wharfs, road network engineering, bridge and tunnel engineering foundations, high-rise building foundations, etc. in soft foundation areas all have to wear With a deep soft foundation, what kind of excavation method should be adopted and how to make the safety guarantee measures in the excavation process both economical and speedy have become major issues in the const...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/02E02D5/08
Inventor 王平平林沐周文任世波吴斌吴耿升洪燕鹏梁丽常沈吴和洪应宁郑宏文郑志鹏
Owner 深圳市兴班建筑工程有限公司
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