冻结法在含水疏松砂岩地层隧洞施工中的应用

The application of freezing method in stratum tunnel construction of water content loose sandstone

针对TBM在含水疏松砂岩地质地段施工中发生的TBM卡机、突泥涌砂、TBM低头等不良现象,对不良地层中采用冻结法加固土体的施工特点、冻结参数以及冻结效果进行了分析,并介绍了冻结加固的施工方法,以供参考。

Based on TBM card machine, mud bursting problem, TBM head drop and other unhealthy of TBM in water content loose sandstone geological location, this paper analyzed the construction characteristics, freezing parameters and freezing effects using freezing method to reinforce soil in bad strata, and introduced the freezing reinforcement construction method, for reference.