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A platform for research: civil engineering, architecture and urbanism
Karst cave pretreatment method for open-cut subway station in strong karst development area
The invention discloses a karst cave pretreatment method for an open-cut subway station in a karst strong development area. The karst cave pretreatment method comprises the following steps that exploration is conducted within the range of the subway station through a drilling method; comprehensive investigation is conducted between the adjacent drill holes, and an investigation result is obtained; drilling holes are arranged according to the exploration result, and the karst cave boundary is explored; determining a karst treatment range according to the karst cave boundary, and dividing a general influence area and a significant influence area; filling and classifying the karst caves according to the growth and development conditions of the karst; based on the classification of the karst caves, determining a filling mode of the karst caves; a drilling machine is adopted for drilling for karst construction treatment; after construction is completed, the filling area is judged and processed; the area which is not fully filled after supplementary grouting is detected again; excavation of a retaining structure, a stand column pile, an uplift pile and a foundation pit is conducted, and construction of a main body structure is conducted. The influence of insufficient foundation bearing capacity in a karst area on the structure and driving safety is avoided, and the purpose of karst treatment is achieved.
本发明公开了一种岩溶强发育区明挖地铁车站的溶洞预处理方法，包括以下步骤：在地铁车站范围内采用钻探方法进行勘察；在相邻钻孔之间进行综合勘察，得到勘察成果；结合勘察成果布置钻孔，摸探溶洞边界；根据溶洞边界，确定岩溶处理范围，并划分一般影响区、显著影响区；根据岩溶的生长发育情况，对溶洞进行填充分类；基于溶洞的分类，确定溶洞的填充方式；采用钻机钻孔进行岩溶施工处理；施工完成后，对填充区域进行判断处理；对补充注浆后的填充不充分区域，进行再次检测；进行围护结构、立柱桩、抗拔桩、基坑开挖、主体结构施工。本发明提供避免岩溶地区导致的地基承载力不够导致的影响结构及行车安全，达到了岩溶处理的目的。
Karst cave pretreatment method for open-cut subway station in strong karst development area
The invention discloses a karst cave pretreatment method for an open-cut subway station in a karst strong development area. The karst cave pretreatment method comprises the following steps that exploration is conducted within the range of the subway station through a drilling method; comprehensive investigation is conducted between the adjacent drill holes, and an investigation result is obtained; drilling holes are arranged according to the exploration result, and the karst cave boundary is explored; determining a karst treatment range according to the karst cave boundary, and dividing a general influence area and a significant influence area; filling and classifying the karst caves according to the growth and development conditions of the karst; based on the classification of the karst caves, determining a filling mode of the karst caves; a drilling machine is adopted for drilling for karst construction treatment; after construction is completed, the filling area is judged and processed; the area which is not fully filled after supplementary grouting is detected again; excavation of a retaining structure, a stand column pile, an uplift pile and a foundation pit is conducted, and construction of a main body structure is conducted. The influence of insufficient foundation bearing capacity in a karst area on the structure and driving safety is avoided, and the purpose of karst treatment is achieved.
本发明公开了一种岩溶强发育区明挖地铁车站的溶洞预处理方法，包括以下步骤：在地铁车站范围内采用钻探方法进行勘察；在相邻钻孔之间进行综合勘察，得到勘察成果；结合勘察成果布置钻孔，摸探溶洞边界；根据溶洞边界，确定岩溶处理范围，并划分一般影响区、显著影响区；根据岩溶的生长发育情况，对溶洞进行填充分类；基于溶洞的分类，确定溶洞的填充方式；采用钻机钻孔进行岩溶施工处理；施工完成后，对填充区域进行判断处理；对补充注浆后的填充不充分区域，进行再次检测；进行围护结构、立柱桩、抗拔桩、基坑开挖、主体结构施工。本发明提供避免岩溶地区导致的地基承载力不够导致的影响结构及行车安全，达到了岩溶处理的目的。
Karst cave pretreatment method for open-cut subway station in strong karst development area
一种岩溶强发育区明挖地铁车站的溶洞预处理方法
ZHANG CHUNLEI (author) / FEI RUIZHEN (author) / ZHANG JIQING (author) / ZHANG HAOLIANG (author) / ZENG JIALIANG (author) / HOU JINGYU (author) / LI ZHE (author) / LIN SENBIN (author) / WANG ZHENGSONG (author) / ZHANG PENG (author)
2023-12-01
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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