上孔煤业松软破碎顶板煤巷支护技术研究
Research on Support Technology of Soft and Broken Roof Coal Roadway in Shangkong Coal Mine
DOI: 10.12677/ME.2019.71007, PDF,   
作者: 栗少锋, 王青松：晋煤上孔煤业有限公司，山西 晋城；曹伟波：河南理工大学，河南 焦作
关键词: 破碎顶板；煤巷；锚杆支护；矿压监测；现场应用；Broken Roof； Coal Roadway； Bolt Support； Mine Pressure Monitoring； Field Application
摘要: 针对上孔煤业9#煤层松软破碎顶板煤巷开挖后，由于顶板岩体不连续导致锚杆与锚索的预应力场作用范围减小，锚杆支护对顶板位移的控制作用大大降低，因其顶板下沉量大，大面积冒顶易于发生等问题，本论文通过现场测试，分析巷道布置与地应力场的关系，指导巷道布置位置，并通过对巷道围岩破坏原因分析，确定最优支护方案，并通过现场监测试验证明了方案的合理性，确保了一次支护效果，降低二次修巷费用，为类似矿井巷道支护提供技术参考。
Abstract: In view of the excavation of the soft-breaking roof coal roadway of No. 9 coal seam in Shangkong Coal Industry, the control effect of bolt support on roof displacement is greatly reduced due to the discontinuity of the prestressed field of anchor and anchor cable caused by the discontinuity of roof rock mass. Because of the large amount of roof subsidence, large-scale roofing is prone to occur. Through the field test, this paper analyzes the relationship between roadway layout and ground stress field, guides the layout of roadway layout, and determines the optimal support scheme by studying the failure mechanism of surrounding rock of roadway, and proves the rationality of the scheme through on-site monitoring test. It ensures a support effect, reduces or eliminates the cost of secondary road repair, and provides technical reference for similar mine roadway support.
文章引用：栗少锋, 曹伟波, 王青松. 上孔煤业松软破碎顶板煤巷支护技术研究[J]. 矿山工程, 2019, 7(1): 39-46. https://doi.org/10.12677/ME.2019.71007

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