强侧向支承应力回采巷道支护方案设计及应用  

Design and Application of Strong Lateral Supporting Stress Back Mining Roadway Support Scheme

作　　者：续盛磊 Xu Shenglei(Safety Management Department of Fenxi Mining Group,Jiexiu Shanxi 032000,China)

机构地区：[1]汾西矿业集团安全管理部,山西介休032000

出　　处：《机械管理开发》2023年第12期266-268,共3页Mechanical Management and Development

摘　　要：针对某矿3304运输巷道在面临强侧向支承应力时的支护难题,综合运用现场调研、文献检索、理论分析等研究方法,探析3304运输巷的围岩变形特点及支护方案优化重点,设计了一套“浅-深”部锚杆-锚索协同支护方案,并成功进行了工程实践。矿压实测结果表明,该支护方案实施后,巷道顶板最大下沉量控制在150 mm,煤柱帮最大变形量控制在110 mm,实体煤帮变形量控制在65 mm,底板最大鼓起量控制在30 mm。围岩发生一定程度变形,但整体控制效果较好,保障了巷道有效支护及使用。Aiming at the support problem of 3304 transport roadway in a mine when facing strong lateral bearing stress,we comprehensively use on-site research,literature search,theoretical analysis and other research methods to analyse the deformation characteristics of the surrounding rock of the 3304 transport roadway and the focus of optimisation of the support scheme,and design a set of"shallow-deep"part of the A set of"shallow-deep"part of anchor-anchor cable cooperative support is designed,and successfully carried out the engineering practice.The results of mine pressure measurement show that after the implementation of this support scheme,the maximum subsidence of the roof plate is controlled at 150 mm,the maximum deformation of the coal pillar gang is controlled at 110 mm,the deformation of the solid coal gang is controlled at 65 mm,and the maximum bulge of the bottom plate is controlled at 30 mm.a certain degree of deformation of the peripheral rock occurs,but the overall control effect is beter,which guarantees the effective support and the use of the roadway.

关 键 词：强侧向支承应力 坚硬顶板 大断面回采巷道 “浅-深”部协同支护 

分 类 号：TD353[矿业工程—矿井建设]