摘要
为有效控制深部煤巷顶帮防治冲击地压,采用理论分析、数值模拟和现场实测等综合研究方法,建立深部煤巷围岩空间结构理论模型,分析深部煤巷差异性分区破坏特征,研究得到深部煤巷顶帮楔墙体结构发生冲击失稳的模式及类型。以滕东矿千米埋深具有强冲击危险性的煤巷为背景,开展了基于防治冲击地压的深部煤巷顶帮支护优化设计和防冲工程实践,实现巷道掘进和工作面回采的防冲安全,验证了楔墙体结构用以指导深部煤巷防冲支护设计优化方面的科学合理性,为深部冲击危险煤巷的顶帮协调控制提供了参考。
In order to improve the safety of the rock burst prevention and control in the mine deep seam gateway,a theoretical analysis,numerical simulation,site measurement and other comprehensive study method were applied to establish a theoretical model of the space structure of the surrounding rock along in the deep seam gateway.The failure features of the differential sub-block in the deep seam gateway were analyzed.A model type of the rock burst failure occurred from the wedge wall structure of the roof and sidewalls along in the deep seam gateway was studied and obtained.With the deep strength rock burst danger seam gateway in Tengdong Mine as the background,an optimized design and engineering practices on the roof and sidewall support along the deep seam gateway were conducted based on the rock burst prevention and control.Thus a safety mining and driving of the driving face with the strength rock burst danger was realized and the rationality of the theoretical model was approved in order to provide the references to the coordinated control of the roof and sidewalls along the deep seam gateway with the rock burst danger.
作者
孔令海
邓志刚
梁开山
程刚
李博
KONG Linghai;DENG Zhigang;LIANG Kaishan;CHENG Gang;LI Bo(Mine Safety Technology Branch,China Coal Research Institute,Beijing 100013,China;State Key Laboratory of Coal Mining and Clean Utilization,Beijing 100013,China;Shandong Province Tengdong Construction Coal Mine,Zaozhuang 277522,China;School of Mining and Safety Engineering,Shandong University of Science and Technology,Qingdao 266590,China)
出处
《煤炭科学技术》
CAS
北大核心
2018年第10期83-89,共7页
Coal Science and Technology
基金
国家重点研究发展计划资助项目(2017YFC0804201)
国家自然科学基金资助项目(51304117
51704165)
中煤科工集团科技创新基金重点资助项目(2014ZD008)
关键词
深部煤巷
冲击地压防治
围岩空间结构
楔墙体结构
防冲协调支护
mine deep seam gateway
rock burst prevention and control
space structure of surrounding rock
wedge wall structure
rock burst prevention with coordinated support
