南宁轻轨车站深基坑支护结构方案探讨

Discussion on the scheme of the deep excavation supporting structure at the Nanning light rail station

通过对南宁试验段车站深基坑的支护方案比选,进行了地下连续墙和钻孔咬合桩的比较分析,阐述地下连续墙作为围护结构兼止水帷幕在深基坑围护结构中的优势,解决了深基坑围护结构兼作止水帷幕在南宁深厚圆砾层中的应用问题。

Through the comparison and selection of the deep excavation supporting scheme at the Nanning test section station, the paper makes comparison and analysis on the underground continuous wall and drilling bitten pile, and expounds the merits of the underground continuous wall as the enveloping structure and watertight barriers in the deep excavation enveloping structure, thus solves the application problems of the deep excavation enveloping structure concurrently as the watertight barriers in the Nanning deep round gravel rock.