摘要
为了解决深部复杂条件下泵房硐室群围岩强烈失稳变形的问题,探讨了采深、断层构造、泵房硐室群特殊布置结构对硐室群围岩稳定性的影响,在此基础上,从加固围岩本身和提高支护承载结构稳定性角度出发,提出了深部复杂条件下泵房硐室群两强稳定型控制技术,采用理论分析和数值模拟分析了两强稳定型控制技术对围岩强化和支护承载体强化机理,并进行了现场工业性试验,试验结果表明:采用两强稳定型支护后,泵房累计顶底板移近量65 mm,两帮移近量62 mm,巷道围岩稳定性得到有效控制。
In order to solve the serious stability lost and deformation problems of the surrounding rock along the pump chamber group un- der the deep and complicated conditions, the paper discussed the mining depth, fault structure, special layout structure of the pump cham- ber group affected to the surrounding rock stability of the chamber group.Based on the circumstances ,from a view to reinforce the surround- ing rock and to improve the stability of the support structure, a two strong stability control technology of the pump chamber group was pro- vided under the deep and complicated conditions. The theoretical analysis and the numerical simulation were applied to analyze the two strong stability control technology to the enhanced mechanism of the surrounang cock and support loading mass and a site industrial trial was conducted.The trial results showed that after the two strong stability support conducted, the total convergence between the roof and floor in the pump chamber was 65 mm, the convergence of the two sidewalls was 62 mm and the stability of the roadway surrounding rock was ef- fectively controlled.
出处
《煤炭科学技术》
CAS
北大核心
2015年第8期23-28,共6页
Coal Science and Technology
关键词
深部复杂条件
泵房硐室群
支护参数
围岩稳定性
deep and complicated conditions
pump chamber group
support parameters
surrounding rock stability
