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Construction method of reverse and forward combined narrow foundation pit supporting structure
The invention relates to a construction method of a reverse and forward combined narrow foundation pit supporting structure. The method comprises the steps of waterproof curtain construction, underground diaphragm wall construction, side pile construction, floor stand column pile construction, excavation of an excavation line I, supporting and retaining structure construction, first floor construction, excavation of an excavation line II, supporting and retaining structure construction, second floor construction, excavation of an excavation line III, supporting and retaining structure construction, bottom plate construction, residual earth excavation, bottom plate and corresponding outer wall construction, supporting and retaining structure dismantling, second floor slab and corresponding outer wall construction, supporting and retaining structure removal, first floor slab and corresponding outer wall construction, supporting and retaining structure removal, and top floor slab and corresponding outer wall construction. The structure has the beneficial effects that as the bottom of the floor stand column pile is provided with an expanded supporting disc, the structure is stable, and the floor stand column pile is an important supporting structure for foundation pit supporting during forward construction and an important bearing supporting structure of a floor structure during reverse construction.
本发明涉及逆顺结合的狭窄基坑支护结构的施工方法，包括止水帷幕施工、地连墙施工、边桩施工、楼板立柱桩施工、开挖线一开挖、支挡结构施工、第一楼板施工、开挖线二开挖、支挡结构施工、第二楼板施工、开挖线三开挖、支挡结构施工、底板施工、剩余土方开挖、底板及相应外墙施工、支挡结构拆除、第二楼板及相应外墙施工、支挡结构拆除、第一楼板及相应外墙施工、支挡结构拆除、顶部楼板及相应外墙施工。本发明的有益效果是：本发明的楼板立柱桩底部采用扩大支盘，结构稳固，在顺作施工时是基坑支护的重要支挡结构，在逆作施工时是楼板结构的重要承重支撑结构。
Construction method of reverse and forward combined narrow foundation pit supporting structure
The invention relates to a construction method of a reverse and forward combined narrow foundation pit supporting structure. The method comprises the steps of waterproof curtain construction, underground diaphragm wall construction, side pile construction, floor stand column pile construction, excavation of an excavation line I, supporting and retaining structure construction, first floor construction, excavation of an excavation line II, supporting and retaining structure construction, second floor construction, excavation of an excavation line III, supporting and retaining structure construction, bottom plate construction, residual earth excavation, bottom plate and corresponding outer wall construction, supporting and retaining structure dismantling, second floor slab and corresponding outer wall construction, supporting and retaining structure removal, first floor slab and corresponding outer wall construction, supporting and retaining structure removal, and top floor slab and corresponding outer wall construction. The structure has the beneficial effects that as the bottom of the floor stand column pile is provided with an expanded supporting disc, the structure is stable, and the floor stand column pile is an important supporting structure for foundation pit supporting during forward construction and an important bearing supporting structure of a floor structure during reverse construction.
本发明涉及逆顺结合的狭窄基坑支护结构的施工方法，包括止水帷幕施工、地连墙施工、边桩施工、楼板立柱桩施工、开挖线一开挖、支挡结构施工、第一楼板施工、开挖线二开挖、支挡结构施工、第二楼板施工、开挖线三开挖、支挡结构施工、底板施工、剩余土方开挖、底板及相应外墙施工、支挡结构拆除、第二楼板及相应外墙施工、支挡结构拆除、第一楼板及相应外墙施工、支挡结构拆除、顶部楼板及相应外墙施工。本发明的有益效果是：本发明的楼板立柱桩底部采用扩大支盘，结构稳固，在顺作施工时是基坑支护的重要支挡结构，在逆作施工时是楼板结构的重要承重支撑结构。
Construction method of reverse and forward combined narrow foundation pit supporting structure
逆顺结合的狭窄基坑支护结构的施工方法
WANG XINQUAN (author) / XU HUAXIN (author) / QI CHANGGUANG (author) / DIAO HONGGUO (author)
2021-12-17
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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