TY - Journal of Yangtze River Scientific Research Institute A1 - GUO Shao-wen, ZHAO Qi-hua, ZHANG Bing, MEI Zhu-yin T1 - Method and Program of Obtaining RQD of Rock Mass Based on 3D Laser Scanning Technique Y1 - 2016-03-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 75 EP - 79 VL - 33 IS - 3 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20141013 ER -