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A platform for research: civil engineering, architecture and urbanism
Subway transfer station deep foundation pit excavation support construction method
The invention discloses a subway transfer station deep foundation pit excavation support construction method. A diaphragm wall enclosure structure is adopted, concrete supports and steel pipe combined supports are arranged, the inner side concrete supports form annular reinforced concrete supports, concrete support formworks adopt prefabricated reverse pressing block reverse pressing easy-to-dismantle formwork systems and shaped formwork systems, built-in segmental steel of waist beams and the diaphragm wall enclosure structure are combined in an anchoring-hanging mode to form a whole, and latticed columns adopt flexible anti-collision construction protection devices. The construction method comprises the steps of (1) construction preparation, (2) drainage in a field, (3) diaphragm wall construction, (4) concrete support and waist beam reinforcement cage binding, (5) concrete support and waist beam formwork erection, (6) concrete pouring and maintenance, (7) formwork removal and foundation pit excavation, and (8) construction of the next layer of concrete supports. According to the subway transfer station deep foundation pit excavation support construction method, the overall safety and stability of a foundation pit are guaranteed, the construction speed is greatly increased, and obvious social benefits and economic benefits are achieved.
本发明公开了一种地铁换乘车站深基坑开挖支护施工方法，采用地连墙围护结构，设置混凝土支撑和钢管组合支撑，内侧混凝支撑形成环形钢筋混凝土支撑，混凝支撑支模采用预制反压块反压易拆模板体系及定型化支模体系，腰梁内置节段型钢与地连墙围护结构锚‑吊结合形成一个整体，格构柱采用柔性防撞施工防护装置。施工步骤包括：（1）施工准备，（2）场内排水，（3）地连墙施工，（4）混凝土支撑、腰梁钢筋笼绑扎，（5）混凝土支撑、腰梁支模，（6）混凝土浇筑、养护，（7）拆模、基坑开挖，（8）下一层混凝土支撑施工。本发明保证了基坑整体安全、稳定，极大的加快了施工速度，具有明显的社会效益和经济效益。
Subway transfer station deep foundation pit excavation support construction method
The invention discloses a subway transfer station deep foundation pit excavation support construction method. A diaphragm wall enclosure structure is adopted, concrete supports and steel pipe combined supports are arranged, the inner side concrete supports form annular reinforced concrete supports, concrete support formworks adopt prefabricated reverse pressing block reverse pressing easy-to-dismantle formwork systems and shaped formwork systems, built-in segmental steel of waist beams and the diaphragm wall enclosure structure are combined in an anchoring-hanging mode to form a whole, and latticed columns adopt flexible anti-collision construction protection devices. The construction method comprises the steps of (1) construction preparation, (2) drainage in a field, (3) diaphragm wall construction, (4) concrete support and waist beam reinforcement cage binding, (5) concrete support and waist beam formwork erection, (6) concrete pouring and maintenance, (7) formwork removal and foundation pit excavation, and (8) construction of the next layer of concrete supports. According to the subway transfer station deep foundation pit excavation support construction method, the overall safety and stability of a foundation pit are guaranteed, the construction speed is greatly increased, and obvious social benefits and economic benefits are achieved.
本发明公开了一种地铁换乘车站深基坑开挖支护施工方法，采用地连墙围护结构，设置混凝土支撑和钢管组合支撑，内侧混凝支撑形成环形钢筋混凝土支撑，混凝支撑支模采用预制反压块反压易拆模板体系及定型化支模体系，腰梁内置节段型钢与地连墙围护结构锚‑吊结合形成一个整体，格构柱采用柔性防撞施工防护装置。施工步骤包括：（1）施工准备，（2）场内排水，（3）地连墙施工，（4）混凝土支撑、腰梁钢筋笼绑扎，（5）混凝土支撑、腰梁支模，（6）混凝土浇筑、养护，（7）拆模、基坑开挖，（8）下一层混凝土支撑施工。本发明保证了基坑整体安全、稳定，极大的加快了施工速度，具有明显的社会效益和经济效益。
Subway transfer station deep foundation pit excavation support construction method
地铁换乘车站深基坑开挖支护施工方法
NIU BEN (author) / WANG SHENGTAO (author) / SONG ZHEN (author) / MU YUHAO (author) / LIU CHENGLONG (author) / XIA HUANHUAN (author)
2021-05-18
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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