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通过以西部矿区的泊江海子井田内软岩巷道为对象,首先,对原巷道支护结构进行受力和变形监测,结果表明:锚杆拉力在观测后期有减小的趋势,而混凝土应变值变化也较大;然后根据所监测的数据提出了优化方案,并利用有限元软件对优化前后的支护方案进行了对比分析,结果为该矿的开采施工提供了可靠的理论依据,并为后续软岩巷道支护的理论研究提供了有力的实例参考,对西部矿区矿井建设具有很强的指导意义。
Through the soft rock tunnel in the Haizi minefield in the western mining area, the stress and deformation monitoring of the original tunnel supporting structure is carried out firstly. The results show that the tensile force of the rock bolt tends to decrease in the late stage of observation and the concrete strain Then the optimization scheme is proposed based on the monitored data, and the comparative analysis of the support schemes before and after the optimization is carried out by using the finite element software. The results provide a reliable theoretical basis for the mining construction of the mine and provide the follow-up The theoretical study of soft rock roadway support provides a powerful example reference, which is of great guiding significance to the mine construction in western mining area.