Thickness Calculating of Freezing Wall in Sandy Silty Soil Layer Based on Force Method
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.
weak strata with high water contentartificial freezing methodthickness of freezing wallstrength control methoddisplacement monitoring