TY - Journal of Yangtze River Scientific Research Institute A1 - FU Ya-xiong,ZHENG Hong T1 - Passive Failure of Excavation Face by Shield Tunnelling in Clay Strata Y1 - 2018-07-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 117 EP - 123 VL - 35 IS - 7 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20170040 ER -