TY - Journal of Yangtze River Scientific Research Institute A1 - TU Ying, YANG Jian-hua, DAI Jin-hao T1 - Vibration Characteristics of Lower Rock Masses During Blasting Excavation of Upper Layers in a Large Underground Cavern Y1 - 2020-09-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 110 EP - 114 VL - 37 IS - 9 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20190894 ER -