【摘要】 本文在总结开滦赵各庄矿(-1100m)发生的两次冲击地压特征的基础上,从材料强度破坏、结构失稳、能量释放理论,分析了千米深井高应力、强流变回采巷道冲击地压的发生机理,同时指出煤岩体结构动力失稳破坏的临界状态,是围岩渐进变形过程中细观裂纹突变、分叉形成不同力学特性的多介质组合体的结果,并对其脆塑性结构进行初步稳定性分析。最后总结了赵各庄矿冲击地压防治对策及经验。更多还原

【Abstract】 In this paper,Based on the summarizing the coal bumps characteristics in Zhaogezhuang coal mine at Kailuan mining group.Dynamic instability mechanism of soft rock mass,under higher stress in-situ accompanying large rheology phenomena is analyzed primarily though materials failure,structure unstable and energy accumulate-release theory,at coal-rock system. Great attention is worthily paid for that Coal-rock combination body model is the base of coal bumps in the nonlinear fracturing process.Finally this paper conclude presently forecasting and preventing methods on coal bumps or rock burst in Zhao Gezhuang coal mine.更多还原