基于围岩变形特性的巷道断面优化与支护系统改进研究  

Research on Optimization of Roadway Cross Section and Improvement of Support System Based on Deformation Characteristics of Surrounding Rock

作　　者：李锦元 李彦鹏 王文兴 Li Jinyuan;Li Yanpeng;Wang Wenxing(Gansu Lingtai Shaozhai Coal Industry Co.,Ltd.,Lingtai 744400,China)

机构地区：[1]甘肃灵台邵寨煤业有限公司,甘肃灵台744400

出　　处：《山东煤炭科技》2025年第4期26-29,共4页Shandong Coal Science and Technology

摘　　要：针对甘肃灵台邵寨煤业有限公司矿井复杂地质条件下巷道围岩变形问题,采用数值模拟与现场试验相结合的方法,对现有支护体系进行了系统的优化设计。通过FLAC^(3D)软件模拟,发现现有巷道支护体系在应对顶板和侧壁变形时存在不足,提出降低巷道高度、调整锚杆排距、加厚喷射混凝土层和加强底板注浆加固等优化措施,引入ZMG-4000型智能化掘进机,通过实时监测系统对支护参数进行动态调整。研究结果表明,优化后的支护体系显著降低了巷道顶板和侧壁的最大位移,提升了锚杆拉拔力,巷道围岩最大收敛量控制在10 mm以内,施工安全系数提高约30%。该优化方案有效提高了巷道的整体稳定性和施工效率,为类似复杂地质条件下的矿井工程提供了技术参考。In response to the deformation problem of roadway surrounding rock under the complex geological conditions of mines in Shaozhai Coal Industry Co.,Ltd.in Lingtai,Gansu,a systematic optimization design for the existing support system is carried out adopting a combination method of numerical simulation and onsite experiments.Through FLAC^(3D)software simulation,it is found that the existing roadway support system has shortcomings in dealing with roof and sidewall deformation.Optimization measures such as reducing roadway height,adjusting anchor rod row spacing,thickening sprayed concrete layer,strengthening floor grouting reinforcement and others are proposed.The ZMG-4000 type intelligent heading machine is introduced,and the support parameters are dynamically adjusted through a real-time monitoring system.The research results show that the optimized support system significantly reduces the maximum displacement of the roadway roof and sidewall,improves the anchor rod pulling force,controls the maximum convergence amount of the roadway surrounding rock within 10 mm,and increases the construction safety coefficient by about 30%.This optimization scheme effectively improves the overall stability and construction efficiency of the roadway,providing technical reference for mine engineering under similar complex geological conditions.

关 键 词：围岩变形 巷道断面 支护设计 

分 类 号：TD353[矿业工程—矿井建设]