冲击地压矿井强烈动压巷道围岩变形综合控制研究

Study on surrounding rock deformation comprehensive control of rock burst mine roadway with strong dynamic pressure

针对冲击地压矿井强烈动压巷道变形量大的问题,依据井下试验巷道工程环境,采用理论分析与计算,结合工程实践,分析了该类巷道维护的技术难点,主要包括频繁强烈动载、顶煤难控、底板底鼓3个方面,在此基础上提出了采用小煤柱护巷、全断面锚索支护及支、护、卸相结合的综合控制对策,确定采用8 m小煤柱进行护巷,设计了新支护方案及参数,并在井下进行工业性试验。试验结果表明,综合控制系统能够有效控制围岩变形,应用效果良好。

Aiming at the problem of strong rockburst mine dynamic pressure roadway with large deformation,on the basis of underground roadway engineering environment,using theoretical analysis and calculation,combined with the engineering practice,the technical diffi-culties of the roadway maintenance are analyzed,mainly including three aspects：the frequent strong drum load,difficult to control the bottom and bottom drum.On this basis,the small coal pillar support and the whole cross section of cable supporting and controlling,sup-porting,unloading combination strategy are proposed,it is determined by 8 m small coal pillar of roadway,a new support scheme and pa-rameters are designed,and the industrial tests is done in the underground,experimental results show that the control system can be inte-grated to effectively control the deformation of surrounding rock,the application effect is good.