A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Foundation pit slope karst seepage-proofing strengthening treatment method
The invention discloses a foundation pit slope karst seepage-proofing strengthening treatment method. The water seepage position of the foundation pit slope karst is treated through curtain grouting, and the non-karst development position is poured with cement paste; the half-filling and non-filling type large karst caves and the karst caves below the underground water level are filled with fine aggregate concrete or mortar in a pouring mode, and then segmented grouting is conducted from top to bottom; and the karst development area above the underground water level and the full-filling type karst cave are poured with paste slurry. By the adoption of the method, the disastrous water gushing risk of the foundation pit slope can be effectively blocked, and as a flood prevention project, the purposes of reducing the water gushing amount of the foundation pit and reducing the risk of the foundation pit in the flood season are achieved, what can be guaranteed is that the construction period is short, and the overall construction progress of a lock chamber is not affected.
一种基坑边坡岩溶防渗加强处理方法，通过帷幕灌浆对基坑边坡岩溶渗水处进行处理，对非岩溶发育部位采用水泥浆进行灌注；对半充填及无充填型大型溶洞和地下水位以下溶洞先采用细石混凝土或砂浆灌注充填，后自上而下分段灌浆；对地下水位以上岩溶发育区域和全充填型溶洞采用膏浆灌注。本发明专利采用上述方法，可有效阻断基坑边坡灾难性涌水风险，作为防汛工程，其以减少基坑涌水量及降低汛期基坑风险为目的，可保证该施工工期短，不影响闸室整体施工进度。
Foundation pit slope karst seepage-proofing strengthening treatment method
The invention discloses a foundation pit slope karst seepage-proofing strengthening treatment method. The water seepage position of the foundation pit slope karst is treated through curtain grouting, and the non-karst development position is poured with cement paste; the half-filling and non-filling type large karst caves and the karst caves below the underground water level are filled with fine aggregate concrete or mortar in a pouring mode, and then segmented grouting is conducted from top to bottom; and the karst development area above the underground water level and the full-filling type karst cave are poured with paste slurry. By the adoption of the method, the disastrous water gushing risk of the foundation pit slope can be effectively blocked, and as a flood prevention project, the purposes of reducing the water gushing amount of the foundation pit and reducing the risk of the foundation pit in the flood season are achieved, what can be guaranteed is that the construction period is short, and the overall construction progress of a lock chamber is not affected.
一种基坑边坡岩溶防渗加强处理方法，通过帷幕灌浆对基坑边坡岩溶渗水处进行处理，对非岩溶发育部位采用水泥浆进行灌注；对半充填及无充填型大型溶洞和地下水位以下溶洞先采用细石混凝土或砂浆灌注充填，后自上而下分段灌浆；对地下水位以上岩溶发育区域和全充填型溶洞采用膏浆灌注。本发明专利采用上述方法，可有效阻断基坑边坡灾难性涌水风险，作为防汛工程，其以减少基坑涌水量及降低汛期基坑风险为目的，可保证该施工工期短，不影响闸室整体施工进度。
Foundation pit slope karst seepage-proofing strengthening treatment method
基坑边坡岩溶防渗加强处理方法
2021-07-23
Patent
Electronic Resource
Chinese
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