A kind of foundation pit construction method

A construction method and foundation pit technology, which is applied in the fields of infrastructure engineering, excavation, construction, etc., can solve the problems of small foundation pit construction space, high foundation pit enclosure cost, long construction period, etc. The effect of fast cycle and low construction cost

Active Publication Date: 2019-11-26
SHANGHAI MECHANIZED CONSTR GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a foundation pit construction method to solve the problems of small foundation pit construction space, long construction period and high foundation pit enclosure cost in densely built areas in the city center

Method used

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  • A kind of foundation pit construction method
  • A kind of foundation pit construction method
  • A kind of foundation pit construction method

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Embodiment Construction

[0030] The purpose of this application is to solve the construction problem of foundation pits in densely built-up areas in urban centers. For the construction of foundation pit projects in densely built areas in the city center, steel pipe piles that are convenient for construction are used as temporary enclosure structures to reduce the site occupied by construction, and the steel pipe piles can be reused and the construction period is fast; secondly, the construction period of the foundation pit The inner lining wall is constructed along the inner side of the retaining structure formed by the steel pipe piles, and section steel is inserted into the inner lining wall to solve the overall stress problem of the foundation pit project.

[0031] The foundation pit construction method proposed by the present invention will be further described in detail below in conjunction with the drawings and specific embodiments. According to the following description and claims, the advantages ...

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Abstract

The invention provides a construction method of a foundation pit. The method comprises the steps as follows: a plurality of steel pipe piles with rabbets are punched underground, and a continuous enclosure structure is formed; cement soil reinforcement is performed in the rabbets of the adjacent steel pipe piles; and the foundation pit is excavated to the predetermined depth. According to the construction method of the foundation pit, the plurality of steel pipe piles with the rabbets are punched underground, the continuous enclosure structure is formed, and the foundation pit is excavated and supported, so that the effects that the place occupied by construction is small, the construction period is short and the construction cost is low are realized; besides, the steel pipe piles can be pulled out and recycled after construction of a lining wall and a bottom plate of the foundation pit is completed, and the construction cost is further reduced; further, profile steel inserted underground is used as part of the lining wall , so that the overall structural strength of the foundation pit is improved, and the anti-floating ability of the bottom plate of the foundation pit is improved.

Description

Technical field [0001] The invention belongs to the technical field of foundation pit engineering construction, and mainly relates to a construction method of a foundation pit engineering located in a densely built area in a city center, a busy traffic area and an area with many underground pipelines. Background technique [0002] A foundation pit is a soil pit excavated at the design location of the foundation according to the elevation of the foundation and the plane size of the foundation. Before excavation, the excavation plan should be determined according to the geological and hydrological data and the conditions of nearby buildings on site, and waterproof and drainage work should be done. If the excavation is not deep, you can use the method of laying the side slope to stabilize the soil slope, and its slope size can be determined according to the relevant construction regulations. For those with deep excavation and nearby buildings, the foundation pit wall support method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D17/04E02D5/20E02D7/18
CPCE02D5/20E02D7/18E02D17/04
Inventor 吴欣之过浩侃王虓张顺李操周蓉峰刘颖赵培
Owner SHANGHAI MECHANIZED CONSTR GRP
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