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A platform for research: civil engineering, architecture and urbanism
Construction method for shallow-deep adjacent deep foundation pit
The invention provides a shallow-first and deep-second adjacent deep foundation pit construction method, which comprises the following steps of: constructing a shallow foundation pit in advance: firstly, constructing a shallow foundation pit water stopping system and a shallow foundation pit supporting system by fully utilizing the advantages of an early-stage site; before the shallow foundation pit is excavated, reinforcing treatment is conducted on middle layers of soil bodies in the middle of the deep foundation pit and the shallow foundation pit, and soil body seepage pressure reduction treatment is conducted on the bottom of the deep and shallow foundation pit through a dewatering well; during excavation of the shallow foundation pit, local construction of a deep foundation pit dewatering system is carried out in advance, and the deep foundation pit dewatering system is integrated with a shallow foundation pit dewatering system; construction of a foundation slab of the shallow foundation pit: completing construction of the foundation slab of the shallow foundation pit and support replacement of the foundation slab; and the deep foundation pit water stop system is constructed. According to the method, staged construction is conducted in the construction sequence of shallow first and deep second, construction resources are reasonably distributed, the construction efficiency is improved, and the precipitation effect can also be guaranteed.
本发明提供的一种先浅后深毗邻深基坑施工方法，包括以下步骤：浅型基坑先行施工：充分利用前期场地优势，首先进行浅型基坑止水系统以及浅型基坑支护系统的施工；土体加固处理：在浅型基坑开挖之前，对深、浅型基坑中部土体中间层进行加固性处理，对深浅型基坑底部采用降水井进行土体渗透压力降低处理；降水井施工：在浅型基坑开挖期间，提前进行深型基坑降水系统局部施工，与浅型基坑降水系统融合一体；浅型基坑基础底板施工：完成浅型基坑的基础底板及基础底板换撑施工；深型基坑止水系统施工。本发明方法通过先浅后深的施工顺序分阶段施工，合理分配施工资源，提高了施工效率，还能保证降水效果。
Construction method for shallow-deep adjacent deep foundation pit
The invention provides a shallow-first and deep-second adjacent deep foundation pit construction method, which comprises the following steps of: constructing a shallow foundation pit in advance: firstly, constructing a shallow foundation pit water stopping system and a shallow foundation pit supporting system by fully utilizing the advantages of an early-stage site; before the shallow foundation pit is excavated, reinforcing treatment is conducted on middle layers of soil bodies in the middle of the deep foundation pit and the shallow foundation pit, and soil body seepage pressure reduction treatment is conducted on the bottom of the deep and shallow foundation pit through a dewatering well; during excavation of the shallow foundation pit, local construction of a deep foundation pit dewatering system is carried out in advance, and the deep foundation pit dewatering system is integrated with a shallow foundation pit dewatering system; construction of a foundation slab of the shallow foundation pit: completing construction of the foundation slab of the shallow foundation pit and support replacement of the foundation slab; and the deep foundation pit water stop system is constructed. According to the method, staged construction is conducted in the construction sequence of shallow first and deep second, construction resources are reasonably distributed, the construction efficiency is improved, and the precipitation effect can also be guaranteed.
本发明提供的一种先浅后深毗邻深基坑施工方法，包括以下步骤：浅型基坑先行施工：充分利用前期场地优势，首先进行浅型基坑止水系统以及浅型基坑支护系统的施工；土体加固处理：在浅型基坑开挖之前，对深、浅型基坑中部土体中间层进行加固性处理，对深浅型基坑底部采用降水井进行土体渗透压力降低处理；降水井施工：在浅型基坑开挖期间，提前进行深型基坑降水系统局部施工，与浅型基坑降水系统融合一体；浅型基坑基础底板施工：完成浅型基坑的基础底板及基础底板换撑施工；深型基坑止水系统施工。本发明方法通过先浅后深的施工顺序分阶段施工，合理分配施工资源，提高了施工效率，还能保证降水效果。
Construction method for shallow-deep adjacent deep foundation pit
先浅后深毗邻深基坑施工方法
WU YANG (author) / LU WENBO (author) / LIANG CHANGSHENG (author)
2024-09-24
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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