TY - Journal of Yangtze River Scientific Research Institute A1 - YUAN Dong,HU Sheng-gang,LI Yu-jie T1 - Disease Analysis and Reinforcement of Small Diversion Tunnel in Weak Expansive Mudstone Area Y1 - 2017-11-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 44 EP - 47 VL - 34 IS - 11 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20160746 ER -