武汉地铁基坑岩土地质结构类型、支护和地下水治理措施

Rock Mass Structure Types,Measures for Supporting and Groundwater Treatment for Foundation Pit of Wuhan Metro

为了准确把握武汉地铁工程不同深度基坑的岩土工程问题,根据工程地质性能,将武汉地区的岩土体划分为6类岩组;然后据各岩组的不同组合,将武汉地区地质体划分为19类岩土地质结构。针对不同岩土地质结构类型中的浅基坑、深基坑和超深基坑所遇到的主要岩土工程问题,提出详细的基坑支护和地下水治理措施建议。

In order to accurately grasp the geotechnical engineering problems of different foundation pit of Wuhan Metro,according to the engineering geological properties,the author divided the rock and soil in Wuhan area into six types of rock groups. According to the different combinations of eachrock group,19 types of geological structure of rock and soil were distinguished. The geologicalproblems of shallow foundation pit,deep foundation pit and ultra deep foundation pit of Wuhan Metroin various geotechnical and geological structures were discussed in detail,and the suggestions for various kinds of foundation pit support and groundwater treatment were put forward.