塔山煤矿8234回风巷支护技术应用研究

Study on application of support technology for 8234 air return roadway in Tashan Mine

塔山煤矿8232工作面回采期间回风巷变形严重,为避免8234回风巷在服务期间出现类似问题,通过理论分析对其围岩破坏特征进行分析,类比临近工作面回采巷道的支护进行支护方案优化和参数设计,采用顶板离层仪、位移计等设备进行监测。结果表明,巷道顶板离层量和围岩位移量均在合理范围内,设计的支护方案支护效果良好。

Based on the serious deformation of air return roadway in the 8232 working face mining of Tashan Mine,in order to avoid similar problems during service of 8234 return airway,the surrounding rock failure characteristics were analyzed through theoretical analysis,and the support of the mining roadway adjacent to the working face was similar.The support scheme was optimized and the parameters were designed.During the field application,the roof delamination instrument and displacement meter were used for monitoring.The results showed that the roof delamination and the surrounding rock displacement were within reasonable ranges,with good support effect.