残采厚煤层综放开采回采巷道围岩稳定性控制技术研究

doi:10. 11799/ ce202509009

摘要/Abstract

摘要：

针对残采厚煤层综放开采工作面回采巷道围岩稳定性控制的难题，提出了“超前掘进面空区注浆充填+破碎顶帮注浆加固+W钢带锚网支护+联合架棚喷浆”的过空区巷道围岩支护方案，并采用理论分析、数值模拟与现场实践验证相结合的方法，验证了该方案的有效性。研究结果表明：注浆充填体可形成再造顶板与实体巷帮，既为回采巷道安全过空区提供必要条件，还能有效支撑加固空区破碎顶板，杜绝回采巷道冒顶的潜在安全隐患；对空区影响范围内的顶板及煤帮进行注浆加固，可提高破碎围岩强度与完整性，改善锚杆（索）的锚固性能及锚杆（索）、钢棚的受力状态；喷浆密闭措施不仅能防止充填体与破碎煤体风化，还可进一步增强回采巷道围岩的护表能力。现场应用表明，所研发的“充填+注浆+W钢带锚网+架棚+喷浆”联合支护技术，能够满足回采巷道安全掘进支护过空区及残采厚煤层安全开采的需求。

关键词:

残采煤层 , 回采巷道 , 注浆充填 , 架棚 , 喷浆 , 空区治理 , 联合支护

中图分类号:

"> TD353

邵春瑞, 季廷秀, 孙建宁, 赵宝友.

残采厚煤层综放开采回采巷道围岩稳定性控制技术研究 [J]. 煤炭工程, 2025, 57(9): 58-66.

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