Ordovician limestone and Cambrian limestone water disasters in Z hengzhou Mining Area and its prevention and control technology赵苏启4-6
Ventilation and gas control during hydraulic powered supports moved out from fully mechanized slicing coal mining face贺海泉7-9
Practice on fully mechanized coal mining under village with deep mining depth and thick alluvium杜明清, 崔金良, 赵悦然, 王茂兴10-13
Repair technology, monitoring and analysis for ultra soft rock failed mine roadway华心祝, 谢广祥, 郑高升, 于孝礼, 王德润, 陈学德22-25
