TY - Journal of Yangtze River Scientific Research Institute A1 - NI Wei-da,SHI An-chi T1 - Numerical Study on Unloading Damage of ColumnarJointed Basalt at Baihetan Hydropower Station Y1 - 2017-10-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 85 EP - 90 VL - 34 IS - 10 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20160693 ER -