TY - Journal of Yangtze River Scientific Research Institute A1 - DU Yan-fei, YANG Le, LIAO Yun-ping, PENG Hai-you, WEN Guang-ju ,LIU Si-chuan T1 - Influencing Factors of Geological Environment at Underground Tunnel in Chongqing Y1 - 2016-07-25 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 105 EP - 108 VL - 33 IS - 8 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20150426 ER -