超深小口径圆形基坑支护方案探讨

Discussion on Support Scheme of Round Superk-deep Small Diameter Foundation Pit

针对圆形、超深、小口径基坑的特征,根据地层结构、地下水情况、周边环境条件等,对该基坑开挖支护方案进行了分析、探讨,提出了排桩、环拱、锚杆联合支护体系,解决了工程中此类特殊基坑支护方案难以选择的难题。

According to the round super-deep small diameter feature of foundation pit,the support scheme is discussed and analyzed based on the stratum structure,groundwater and peripheral environmental condition. The supporting system combined with piles,ring arch and anchor can solve the difficult problem for special foundation pit.