摘要
根据袁店一矿1022机巷的工程条件,采用数值模拟方法,分析3种支护方案的巷道围岩应力、位移分布特征。模拟结果得出,长度2.4 m锚杆加锚索支护较合理;矿压观测结果表明,此方案的顶板整体离层量较小,巷道围岩控制效果良好。
On the basis of engineering condition of No.10 22 mechanical roadway in Yuandian Mine I, numerical simulation was used to study the three supporting plans in terms of stress of surrounding rocks and displacement distribution features. Simulation results showed that 2.4m bolt and anchor cable support was more reasonable. The pressure observation showed smaller overall separation amount of roof and better control effect of surrounding rocks.
出处
《山西煤炭》
2014年第12期31-33,共3页
Shanxi Coal
关键词
断层破碎带
破碎顶板
煤巷支护
数值模拟
fault fracture zone
broken roof
roadway supporting
numerical simulation
