摘要
通过岩石力学实验分析了襄垣某矿3号煤层十字交叉巷道的围岩受力特诊,结合3号煤层的煤层赋存特征,确定该矿十字交叉巷道围岩类型为Ⅲ类中等稳定围岩,从而初步确定了十字交叉巷道的支护方案。提出了全煤十字交叉巷道的合理支护形式,以确保十字交叉巷道的围岩稳定和安全使用。
Though the experiment on mechanics of rocks, the surrounding rock characteristics of bearing at intersection in No.3 seam in Xiangyuan were analyzed. Combined with hosting features, the intersection surrounding rocks were determined to be type III medium stable, and then the supporting plan was established initially. At last the whole intersection roadway supporting was proposed to ensure the stability and safety of the surrounding rocks.
出处
《山西煤炭》
2011年第12期48-49,73,共3页
Shanxi Coal
关键词
十字交叉
围岩类型
数值模拟
围岩稳定
intersection
surrounding rock type
numerical simulation
surrounding rock stability
