汾源煤业5-1021巷过断层支护技术研究

Research on Supporting Technology of Lane 5-021 of Fenyuan Coal Industry Crossing Fault

汾源煤业5-1021巷在掘进中将通过断层,为保障巷道的顺利掘进,分析了断层对巷道掘进的影响,提出过断层支护方案,并对巷道顶板离层、围岩表面变形等情况进行监测。结果表明:在断层处巷道顶板离层量最大,围岩表面变形量最大,但通过对巷道围岩进行支护后,这些参数都在可接受范围内,巷道围岩的稳定性得到了有效保障。

Fenyuan Coal Industry 5-1021 Lane will pass through faults during the tunneling process.In order to ensure the smooth driving of the tunnel,this paper analyzes the impact of the fault on the tunneling,and puts forward the support plan for the tunnel through the fault,and monitors the roof separation and surrounding rock surface deformation of roadway.The results show that:at the fault,the amount of roof separation is the largest,and the deformation of surrounding rock surface is the largest,but after supporting the surrounding rock of the tunnel,these parameters are within the acceptable range,the stability of the surrounding rock of the roadway has been effectively guaranteed.