1Technology of weakening and danger-breaking dynamic disasters by hard roofYANG Junzhe, ZHENG Kaige, WANG Zhenrong, PANG Naiyong3371-33792Principle and key technologies of controlled water mining and practice of fully-mechanized mining under soft sandstone aquiferZHANG Yujun3380-33883Temporal-spatial evolutionary law of plastic zone and stability control in repetitive mining roadwayWU Xiangye, LIU Hongtao, LI Jianwei, GUO Xiaofei, L(U) Kun, WANG Jingya3389-34004Rockburst start-up condition influenced by accelerated creep of surrounding rock of circular roadwayCHEN Guoxiang, GUO Bingbing, HAO Zhen3401-34075Calculation method of rock burst resistance grade of O-shaped shed supportXU Lianman, PAN Weihan, PAN Yishan, L(U) Xiangfeng, QIN Zhijiao, XIAO Yonghui3408-34176Mechanical model and fracturing characteristics of multi-area supporting roof in fully mechanized mining working faceNING Jing, XU Gang, ZHANG Chunhui, SUN Minglei3418-34267Inversion method of initial geostress in coal mine field based on FLAC3D transverse isotropic modelYU Dajun, YANG Zhangjie, GUO Yunhua, YANG Yonggang, WANG Bo3427-34348Research on visual model test of displacement distribute characteristics and load transfer model of root pile during upliftingZHANG Jilu, HUANG Xuefeng, WEI Linhui, ZHOU Junpeng, YUAN Jun, WANG Xueming3435-34459Rock mass instability prediction method based on weighted D-S evidence theory and multi-domain features fusionLUO Xiaoyan, ZHAN Pengfei, HUANG Xianghai, SHAO Fan3446-345210Optimization of overcasting blast-dragline casting mining technology system's parameters in fault subsidence zone of Heidaigou Open-pit Coal MineZHAO Jingchang, SUN Jiandong, BAI Runcai, WANG Dong, LIU Xishun, XU Zhongkui, TANG Xiaoqian3453-346111Similarity experiment of dust concentration influencing factors at unloading port in multiple level of high ore passWANG Jiuzhu, JIANG Zhongan, WANG Yapeng3462-347012Fracturing effect and damage behaviors for microstructure in shale under microwave irradiationHU Guozhong, ZHU Jieqi, ZHU Jian, SUN Chao, YANG Nan, QIN Wei3471-347913Paleoenvironmental characteristics of the Jiusi Formation and potential for shale gas exploration in Zhaotong shale gas demonstration zoneWANG Pengwan, HE Yong, LI Junjun, HUANG Ling, JIANG Liwei, LI Xianjing, ZOU Chen, JIA Dan, MA Liqiao, LIU Lingli3480-349114Characteristics of present-day in-situ stress field under multi-seam condtions: Implications for coalbed mthane developmentJU Wei, JIANG Bo, QIN Yong, WU Caifang, LI Ming, XU Haoran, WANG Shengyu3492-350015Dynamic evolution and its influencing factors of coal seam permeability during joint gas production of superimposed CBM systemPENG Shoujian, JIA Li, XU Jiang, GUO Shichao3501-351116Development and application of dense multi-cluster fracturing in horizontal wells for low permeability and low pressure coal reservoirCAO Yunxing, SHI Bin, TIAN Lin, LI Fengliang, CAO Yongheng, DONG Shi, ZHOU Dan3512-352117Influence of normal development faults characteristics on the exploitation of vertical coal-bed methane wells:A case study of the Shizhuang Block in the south of Qinshui BasinHAN Wenlong, WANG Yanbin, NI Xiaoming, LI Yong, TAO Chuanqi, LIU Zhenming, WU Xiang3522-353218Design and test of the self-propelled dynamic balance confining pressure water jet drillingLIANG Chunmiao, YAO Ningping, YAO Yafeng, ZHANG Jinbao, SHA Cuicui, LI Kun3533-354019Orthogonal fracture resistance-capacitance model of complex re-sistance of containing water coal seamZHAO Chenguang, LEI Dongji, ZHANG Yugui3541-354720Experimental studies on variation characteristics of physical parameters during water and sand burst through mining fracturesZHANG Shichuan, LI Yangyang, LI Jinping, YANG Weihong, WANG Guili, WEN Zhijie3548-3555 