1Engineering Practices on New High-rise Buildings Crossing Over Goaf of Old Coal MineJIA Zhaoyuan, SHANG Jianfei, WANG Mingli, ZHAO Youxing1-5,212Comparison and Selection of Mine Gateway Layout in Mining Block of Yuxin Ventilation Shaft Engineering in Yuwu MineZHANG Bao6-83Rapid Construction of Air Return Vertical Shaft in No 4. Panel of Tashan Coal MineXUAN Jianjun, ZHANG Guangqiang, HAN Weidong9-134Analysis and Control of Freezing Wall Water Permeability During Trial Excavation of Mine Ventilation Shaft in Shila Wusu Coal MineLI Xiaowei, ZENG Fanyi14-16,605Directional Drilling and Grouting Technology Applied to Mine Water Disaster Prevention and Control in Coal MineSUN Xiaoyu, TIAN Le, AN Xuliang, DENG Yun17-216Transportation Technology of Large Drilling and Grouting Equipment from Surface Ground to Underground MineLI Guanghong, HE Wen22-257Elimination on Interference Signals of Transient Electromagnetic Advanced Detection in Mine Roadway HeadingLIN Guohua, HU Xiongwu26-338Experiment Study on Backfilled Cement Mortar in Liner of Full Face Boring ShaftFU Xinpeng, JING Guoye, HAN Bo, PENG Ming34-379Simulation on Stability Control of Gob-side Roadway with Small Coal PillarZHANG Haijiao, SUN Lele, KANG Yongshui38-4310Study on Closed Support Technology of Soft Rock Mine Roadway in 1000 m Deep Mine ShaftJIANG Zhiyun, LI Bingbing, CHENG Lixing44-4811Performance Characteristics and Control of Ground Pressure around Roadway in High-stress EnvironmentSHI Qiuzhi49-53,5612Research and Development of Rotary and Wedge Connection Device and Application to Mine Shaft HoistingZHANG Feng54-5613Research and Development on Wireless Remote Control Operation of Hydraulic Double Boom Rock Drilling RigCAO Linhu, GUO Hongbin, XIE Jin, BAO Wei57-60