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过断层破碎带巷道围岩控制技术研究

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针对巷道穿越断层构造区支护失效、局部顶板冒落、片帮等问题,以兖矿集团鲍店煤矿 7304 胶带顺槽为工程背景,根据巷道变形破坏特征和破坏原因,提出了"双壳刚柔耦合"注浆支护技术,对原支护技术方案进行了优化设计,通过数值模拟和现场试验验证了优化支护方案的可行性.结果表明,采用优化支护方案后,巷道顶底板最大移近量和两帮最大收敛分别为105.5 mm、121.8 mm,顶板离层量变化幅度在6 mm以内,有效提高了巷道围岩的稳定性.
Research on Surrounding Rock Control Technology for Roadways Passing Through Fault Fractured Zones
Aiming at the problems of support failure,local roof caving,wall caving and so on in the fault structure area where the roadway passes through,taking the 7304 tape groove of Baodian Coal Mine in Yankuang Group as the engineering background,the"double shell rigid flexible coupling"grouting support technology is proposed according to the roadway deformation and failure characteristics and causes.The original support technology scheme is optimized and designed,and the feasibility of the optimized support scheme is verified through numerical simulation and on-site experiments.The results show that after adopting the optimized support scheme,the maximum displacement amount of the roof and floor of the roadway and the maximum convergence of the two sides are 105.5 mm and 121.8 mm,respectively.The variation amplitude of the roof separation amount is within 6 mm,effectively improving the stability of the surrounding rock of the roadway.

faultroadwaycouplingsupport

刁玉峰、张杰、李正泉

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兖矿能源集团股份有限公司鲍店煤矿,山东 邹城 273500

兖矿能源集团股份有限公司济宁二号煤矿,山东 济宁 272000

兖矿能源集团股份有限公司东滩煤矿,山东 邹城 273500

断层 巷道 耦合 支护

2024

山东煤炭科技
山东省煤炭学会

山东煤炭科技

影响因子:0.185
ISSN:1005-2801
年,卷(期):2024.42(2)
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