Impact analysis of shield tunneling under existing municipal tunnels in the rich water pebble stratum
Taking the pre embedded project of a connecting passage in Hangzhou as the background,the deformation effect of shield tunneling on the main structure of the existing open cut municipal tunnel in the rich water gravel layer was studied using Midas GTS NX calculation software.The calculation results show that after the completion of the left and right shield tunneling,the maximum horizontal displacement value of the municipal tunnel is about 0.2 mm,the maximum vertical settlement value is about 3.95 mm,and the deformation is controllable.It should be strengthen the monitoring of municipal tunnel structures,use monitoring results to guide construction,optimize construction parameters,and ensure the smooth implementation of the project.
万方数据
维普
