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A platform for research: civil engineering, architecture and urbanism
Method for treating karst diseases through foundation pit excavation soft soil grouting
The invention discloses a method for treating karst diseases through foundation pit excavation soft soil grouting. The method comprises the steps that S1, the cement-soil mixing proportion is determined; s2, cement soil is prepared and grouted, and whether karst cave grouting is completed or not is judged through an analysis method in the grouting process; according to the method, the soft soil generated by excavation of the foundation pit is reasonably utilized to prepare the cement soil to treat the karst diseases, the cement consumption is greatly reduced, the construction cost is reduced, the phenomenon of'void 'at the top of the karst cave is avoided, and the method has the characteristics of good prevention and treatment effect, low cost and simplicity and convenience in operation; meanwhile, a grouting pipe is designed and comprises a positioning pipe sleeve, an anti-backflow connecting piece and a grouting inner pipe, when the grouting pipe is used, the grouting inner pipe moves in the positioning pipe sleeve, the positioning pipe sleeve is fixed in surrounding rock on the peripheral side, the grouting pipe is fixed, grout can be effectively prevented from flowing back in the using process through the arrangement of the anti-backflow connecting piece, and the grouting efficiency is improved. The anti-backflow device has the advantages of simple structure and good fixing and anti-backflow effects.
本发明公开了一种利用基坑开挖软土注浆处理岩溶病害的方法，包括步骤S1.确定水泥土配合比；S2.配制水泥土并进行注浆，并在注浆过程中采用分析法来判断溶洞注浆是否完成；本方法通过将基坑开挖产生的软土合理利用，来配制水泥土对岩溶病害进行治理，大大减少了水泥用量，降低工程造价，避免溶洞顶部出现“脱空”现象，具有防治效果好、成本低和操作简单方便的特点；同时设计了一种注浆管，包括定位管套、防逆流连接件和注浆内管，在使用时，通过注浆内管在定位管套内运动来势定位管套固定在周侧围岩中，对注浆管进行固定，通过防逆流连接件的设置，可有效防止在使用过程中浆液产生逆流，具有结构简单、固定和防逆流效果好的优点。
Method for treating karst diseases through foundation pit excavation soft soil grouting
The invention discloses a method for treating karst diseases through foundation pit excavation soft soil grouting. The method comprises the steps that S1, the cement-soil mixing proportion is determined; s2, cement soil is prepared and grouted, and whether karst cave grouting is completed or not is judged through an analysis method in the grouting process; according to the method, the soft soil generated by excavation of the foundation pit is reasonably utilized to prepare the cement soil to treat the karst diseases, the cement consumption is greatly reduced, the construction cost is reduced, the phenomenon of'void 'at the top of the karst cave is avoided, and the method has the characteristics of good prevention and treatment effect, low cost and simplicity and convenience in operation; meanwhile, a grouting pipe is designed and comprises a positioning pipe sleeve, an anti-backflow connecting piece and a grouting inner pipe, when the grouting pipe is used, the grouting inner pipe moves in the positioning pipe sleeve, the positioning pipe sleeve is fixed in surrounding rock on the peripheral side, the grouting pipe is fixed, grout can be effectively prevented from flowing back in the using process through the arrangement of the anti-backflow connecting piece, and the grouting efficiency is improved. The anti-backflow device has the advantages of simple structure and good fixing and anti-backflow effects.
本发明公开了一种利用基坑开挖软土注浆处理岩溶病害的方法，包括步骤S1.确定水泥土配合比；S2.配制水泥土并进行注浆，并在注浆过程中采用分析法来判断溶洞注浆是否完成；本方法通过将基坑开挖产生的软土合理利用，来配制水泥土对岩溶病害进行治理，大大减少了水泥用量，降低工程造价，避免溶洞顶部出现“脱空”现象，具有防治效果好、成本低和操作简单方便的特点；同时设计了一种注浆管，包括定位管套、防逆流连接件和注浆内管，在使用时，通过注浆内管在定位管套内运动来势定位管套固定在周侧围岩中，对注浆管进行固定，通过防逆流连接件的设置，可有效防止在使用过程中浆液产生逆流，具有结构简单、固定和防逆流效果好的优点。
Method for treating karst diseases through foundation pit excavation soft soil grouting
一种利用基坑开挖软土注浆处理岩溶病害的方法
ZHANG PENG (author) / YU YANG (author) / ZHAO MING (author) / LI ZHIXING (author) / LYU QING (author) / CAO WEIGUANG (author) / FENG LI (author) / HE JINGTAO (author) / LIU ZENGQIANG (author) / LI XIANGJUAN (author)
2023-05-02
Patent
Electronic Resource
Chinese
IPC:
E02D
FOUNDATIONS
,
Gründungen
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