TY - Journal of Yangtze River Scientific Research Institute A1 - ZHANG Fei, XU Guang li, WEI Zhi-yun, ZHU Ke-jun T1 - Intelligent Back Analysis of Rockmass Parameters of Underground Caverns in Consideration of Loose Zone During Construction Y1 - 2013-07-05 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 75 EP - 80 VL - 30 IS - 7 UR - http://ckyyb.crsri.cn N1 - 10.3969/j.issn.1001-5485.2013.07.015 ER -