西部矿区软岩巷道支护结构监测及数值模拟分析

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。

Western mine area soft rock roadway supporting structure monitoring and numerical simulation analysis

Taking soft rock roadway in Western mining area bojianghaizi mine field as an object, first of all, results of the o-riginal roadway supporting structure stress and deformation moni-toring show that the bolt tension trends to decrease in the later observation, and the changing of concrete strain value is also larger. Then based on the monitoring data, the optimization scheme is proposed, and compared the supporting schemes be-fore and after the optimization scheme by using the finite element software, the analysis result provides a reliable theoretical basis for the mining of the mine area, and a strong instance reference for the subsequent study of the soft rock roadway supporting theo-ry , has a strong guiding significance to the western mine con-struction.