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Foundation pit earthwork construction method for civil air defense engineering

A construction method and technology for civil air defense engineering, which are applied in basic structure engineering, excavation, soil protection, etc., can solve problems such as not being effectively dealt with, construction is not safe enough, and construction period is long, so as to improve construction coordination and improve construction efficiency. , to ensure the effect of construction quality

Pending Publication Date: 2021-08-10
CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above construction plan, due to the direct excavation of earthwork, when constructing on some complex foundations with relatively large water content, the groundwater in the foundation pit has not been effectively treated, so it is easy to cause foundation settlement, and even cause serious safety accidents, and the construction is not safe enough At the same time, the above-mentioned construction plan is to excavate the earthwork layer by layer and build the foundation pit support structure layer by layer. The construction of the foundation pit support structure in this scheme requires multiple times, repeated disassembly and assembly, and the construction period is relatively long

Method used

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  • Foundation pit earthwork construction method for civil air defense engineering
  • Foundation pit earthwork construction method for civil air defense engineering
  • Foundation pit earthwork construction method for civil air defense engineering

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] The concrete embodiment of civil air defense engineering foundation pit earthwork construction method of the present invention:

[0025] The general construction process of the civil air defense engineering foundation pit earthwork construction method is as follows: figure 1 As shown, that is, dewatering of the foundation pit → excavation of the first layer of the foundation pit → first layer of slope support → excavation of the next layer of the foundation pit → digging above the foundation according to the above steps → manual cleaning of the foundation soil → foundation treatment → foundation pit After the excavation, the first layer of slope support and the manual cleaning of the base soil shall be inspected and laid out at the same time, that is, the monitoring points shall be set, and the normal and abnormal conditions of...

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Abstract

The invention relates to a foundation pit earthwork construction method for civil air defense engineering, and belongs to the technical field of civil air defense engineering construction. The foundation pit earthwork construction method for civil air defense engineering comprises the steps that step 1, after surveying and setting out of a deep foundation pit are completed, the deep foundation pit is divided into M areas from south to north, each area is divided into N<q> construction sections from west to east, and the corresponding mark number of each construction section is defined as MN<q> (p is larger than 2, q is larger than 4, and p and q are both positive integers); step 2, before the corresponding construction section is excavated, precipitation pipe well construction is conducted on the construction section; step 3, according to a foundation pit design drawing, excavation is conducted in a partitioned, segmented and layered mode from west to east in a backward sequence; when a (q-1) th foundation pit is excavated, layered excavation is carried out from west to east, excavation sections are M<1>N<q-1>, M<2>N<q-1>... MN<q-1> sections, excavation sections of a qth foundation pit are M<1>N<q>, M<2>N<q>... MN<q> sections, layered excavation is carried out from south to north, and riding tracks are arranged at the M<1>N<q> section; and step 4, according to the mode in step 3, excavation of the foundation pit is completed. The construction efficiency can be improved, and the construction quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of civil air defense engineering construction, in particular to an earthwork construction method for a civil air defense engineering foundation pit. Background technique [0002] Civil air defense projects, referred to as civil air defense projects, refer to underground protective buildings built separately to ensure the concealment of personnel and materials, civil air defense command, and medical rescue in wartime, and basements built in combination with ground buildings that can be used for air defense during wartime. [0003] The foundation of civil air defense projects is often a deep foundation pit. A deep foundation pit refers to an excavation depth of more than 5 meters (including 5 meters) or a basement with more than three floors (including three floors), or a depth of less than 5 meters, but the geological conditions and the surrounding The environment and underground pipelines are particularly co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/02E02D17/04E02D17/20E02D5/20E02D5/34E02D5/74E02D3/10E02D19/10
CPCE02D17/02E02D17/04E02D17/207E02D5/20E02D5/34E02D5/74E02D3/10E02D19/10E02D2250/0023E02D2300/002E02D2300/0029
Inventor 牛敬森华林林李康张征朱国斌申祥峰张彦涛上鹏杨鸿智
Owner CHINA CONSTR SENVENTH ENG BUREAU INSTALLATION ENG
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