A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Frame structure bridge jacking construction process and foundation pit support method
The invention discloses a frame structure bridge jacking construction process and a foundation pit support method. The foundation pit support method is realized through cooperation of a first water stop curtain and a second water stop curtain. The first water stop curtain is arranged around a foundation pit; the lower end of the first water stop curtain extends to a soft soil water permeable stratum to form a water stop retaining wall for reducing or even preventing underground water from flowing into the foundation pit through the side wall of the foundation pit and the pit bottom of the foundation pit, so that a frame structure bridge bracket is guaranteed to be operated under a water-free environment, and the stability of the foundation pit and the safety of operators are guaranteed; the second water stop curtain is arranged around the foundation pit, and is positioned between the foundation pit and the first water stop curtain; and the lower end of the second water stop curtain canbe positioned below the pit bottom of the foundation pit to achieve the effects of water stop and stratum reinforcement.
本发明公开了一种框构桥顶进施工工艺及基坑围护的方法，其中基坑围护的方法是通过第一止水帷幕和第二止水帷幕配合实现。第一止水帷幕沿基坑的四周设置，且第一止水帷幕的下端延伸至软土透水地层，形成止水挡墙，用于减少甚至阻止地下水通过基坑的侧壁以及基坑的坑底流入基坑，确保框构桥支座在无水环境下进行，并确保基坑稳定和操作人员安全；第二止水帷幕沿基坑的四周设置，位于基坑与第一止水帷幕之间，第二止水帷幕的下端能够位于基坑的坑底以下，起到止水和地层加固的作用。
Frame structure bridge jacking construction process and foundation pit support method
The invention discloses a frame structure bridge jacking construction process and a foundation pit support method. The foundation pit support method is realized through cooperation of a first water stop curtain and a second water stop curtain. The first water stop curtain is arranged around a foundation pit; the lower end of the first water stop curtain extends to a soft soil water permeable stratum to form a water stop retaining wall for reducing or even preventing underground water from flowing into the foundation pit through the side wall of the foundation pit and the pit bottom of the foundation pit, so that a frame structure bridge bracket is guaranteed to be operated under a water-free environment, and the stability of the foundation pit and the safety of operators are guaranteed; the second water stop curtain is arranged around the foundation pit, and is positioned between the foundation pit and the first water stop curtain; and the lower end of the second water stop curtain canbe positioned below the pit bottom of the foundation pit to achieve the effects of water stop and stratum reinforcement.
本发明公开了一种框构桥顶进施工工艺及基坑围护的方法，其中基坑围护的方法是通过第一止水帷幕和第二止水帷幕配合实现。第一止水帷幕沿基坑的四周设置，且第一止水帷幕的下端延伸至软土透水地层，形成止水挡墙，用于减少甚至阻止地下水通过基坑的侧壁以及基坑的坑底流入基坑，确保框构桥支座在无水环境下进行，并确保基坑稳定和操作人员安全；第二止水帷幕沿基坑的四周设置，位于基坑与第一止水帷幕之间，第二止水帷幕的下端能够位于基坑的坑底以下，起到止水和地层加固的作用。
Frame structure bridge jacking construction process and foundation pit support method
一种框构桥顶进施工工艺及基坑围护方法
HUANG LEI (author) / WEI WEI (author) / LIU LILI (author) / FU YU (author) / GUO YUMING (author) / LIU YING (author) / LI XIANG (author) / JIN MAN (author) / ZHANG YUAN (author) / WANG FAN (author)
2020-12-04
Patent
Electronic Resource
Chinese
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