针对南方某些富水地层下的地铁施工问题,结合某地铁联络道冻结法施工的工程实例,采用低温盐水冻结法对富水地层进行冻结施工,分析了该案例中冻结施工所需要的设备、施工方案的确定以及监控量测的作用。结果表明:在冻结时间40d前后土体开始交圈,冻胀压力开始降低;50d后冻结壁厚度>1.8m,土体平均温度\r\nAiming at the subway construction under some water-rich strata in South China,the theoretical basis of soil freezing and the construction technology of freezing method are mainly introduced.In this paper,a freezing tunnel construction method is used ……