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Water-rich stratum super-long deep foundation pit deformation control method
The invention discloses a deformation control method for a super-long deep foundation pit in a water-rich stratum, and is applied to the technical field of foundation pit construction. Comprising the following steps that foundation pit construction is divided into three working faces, and core soil is reserved; during structure construction, an excavated working face is closely followed; arranging a steel stress compensation system in the foundation pit; and the number of opened precipitation wells is determined according to requirements. According to construction of the water-rich sand layer super-long foundation pit under the complex environmental conditions, the surrounding environmental conditions are analyzed, various optimization measures are comprehensively applied, and the construction efficiency is improved from the aspects of foundation pit excavation, structure construction, a supporting system and rainfall. According to the construction method, the technical effects that the safety of foundation pit excavation construction is achieved, the safety of the surrounding environment is ensured, meanwhile, the construction period is shortened, and the construction cost is reduced are achieved through the comprehensive measures that middle core soil is reserved through segmented excavation, structural construction closely follows an excavation face and a steel support stress compensation system, and segmented on-demand precipitation is combined.
本发明公开了一种富水地层超长深基坑变形控制方法，应用于基坑施工技术领域。包括以下步骤：将基坑施工分为三个工作面并留置核心土；在结构施工时紧跟开挖的工作面；在基坑设置钢应力补偿系统；根据需求确定降水井开启的数量。本发明针对复杂环境条件富水砂层超长基坑施工，对周边环境条件分析、综合运用各项优化措施，从基坑开挖、结构施工、支撑体系及降水方面，通过采取分段开挖留置中部核心土、结构施工紧跟开挖面、钢支撑应力补偿系统、分段按需降水相结合的综合措施，实现了基坑开挖施工的安全，确保了周边环境安全，同时缩短了施工工期的技术效果，降低了施工成本。
Water-rich stratum super-long deep foundation pit deformation control method
The invention discloses a deformation control method for a super-long deep foundation pit in a water-rich stratum, and is applied to the technical field of foundation pit construction. Comprising the following steps that foundation pit construction is divided into three working faces, and core soil is reserved; during structure construction, an excavated working face is closely followed; arranging a steel stress compensation system in the foundation pit; and the number of opened precipitation wells is determined according to requirements. According to construction of the water-rich sand layer super-long foundation pit under the complex environmental conditions, the surrounding environmental conditions are analyzed, various optimization measures are comprehensively applied, and the construction efficiency is improved from the aspects of foundation pit excavation, structure construction, a supporting system and rainfall. According to the construction method, the technical effects that the safety of foundation pit excavation construction is achieved, the safety of the surrounding environment is ensured, meanwhile, the construction period is shortened, and the construction cost is reduced are achieved through the comprehensive measures that middle core soil is reserved through segmented excavation, structural construction closely follows an excavation face and a steel support stress compensation system, and segmented on-demand precipitation is combined.
本发明公开了一种富水地层超长深基坑变形控制方法，应用于基坑施工技术领域。包括以下步骤：将基坑施工分为三个工作面并留置核心土；在结构施工时紧跟开挖的工作面；在基坑设置钢应力补偿系统；根据需求确定降水井开启的数量。本发明针对复杂环境条件富水砂层超长基坑施工，对周边环境条件分析、综合运用各项优化措施，从基坑开挖、结构施工、支撑体系及降水方面，通过采取分段开挖留置中部核心土、结构施工紧跟开挖面、钢支撑应力补偿系统、分段按需降水相结合的综合措施，实现了基坑开挖施工的安全，确保了周边环境安全，同时缩短了施工工期的技术效果，降低了施工成本。
Water-rich stratum super-long deep foundation pit deformation control method
一种富水地层超长深基坑变形控制方法
FAN WEIXING (author) / FAN RUOYI (author) / WANG YINDI (author) / SHI BO (author) / WU JINCHENG (author) / HOU LIANG (author) / MIAO LEI (author)
2023-07-07
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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