复杂应力条件下采区变电所围岩控制技术研究

Study on Surrounding Rock Control Technology of Mining Area Transformer Substation under Complex Stress Condition

针对深埋藏复杂应力条件下的采区上山联络巷道围岩控制问题,以四通矿五采区变电所为工程背景,采用数值模拟软件,分析了集中应力对变电所围岩稳定性的影响规律,研究了巷道围岩最大垂直应力与位移演化特征,提出了全断面围岩注浆提高围岩的自承载能力,优化了巷道支护方案。工程试验结果表明,巷道围岩控制效果明显。

To solve the contact problem of roadway surrounding rock control in the deeply buried hill under complex stress condition of mining area, taking the substation of mining area 5, Sitong Mine as the engineering background, the paper uses the numerical simulation software, making an analysis of the infuence law of the stress concentration on the substation surrounding rock stability, studying the maximum vertical stress and evolution characteristics of displacement of roadway surrounding rock, putting forward the whole section of surrounding rock of wall rock to improve the bearing capacity, optimizing the roadway supporting scheme. The engineering test results show that the control effect of roadway surrounding rock is obvious.