Soft stratum with high water content is mostly constructed by the artificial freezing method,so the design of thickness of freezing wall is the key point.By theoretical derivation,model simplification,the method calculation thickness of freezing wall in sandy silty soil layer is put forward.Based on the metro communication channel in Suzhou,the field conditions were restored in laboratory to obtain the parameters for physical and mechanical tests on artificial freezing soil at a certain temperature,then comprehensive analysis were carried out to take strength control method and force method as the calculation basis and to take the relevant safety factors involved into consideration.As a result,it was determined that the thickness of freezing wall in sandy silty soil layer to be 2 m.
关键词
高含水软弱地层/人工冻结法/冻结壁厚度/强度控制法/位移监测
Key words
weak strata with high water content/artificial freezing method/thickness of freezing wall/strength control method/displacement monitoring
维普
万方数据