山体煤层回采巷道承载层概念的提出和应用验证

Study of Roadway of Coal Seam Embodied in Mountain

我国西南地区,山体赋存煤层埋藏深度和基岩厚度变化大、冲积层薄。煤层巷道稳定性受山体赋存特征影响大,是目前亟需研究解决的重大课题。在分析总结前人研究成果的基础上,运用理论分析、数值模拟和现场实测等方法,对山体赋存煤层回采巷道进行了分析研究,提出了山体赋存煤层回采巷道承载层的概念,分析研究了承载层存在的条件、稳定性影响因素以及承载层在工程实践中的效果验证。

The depth and the bedrock thickness of the coal seam embodied in mountain are change largely, and the alluvium is thin in the southwest of our country. The stability of the roadway in coal seam which is affected greatly by the characteristic of the mountain is the important problem needed to solve urgently. On the basis of the analysis and summarizing of the former research result, the dissertation studies the roadway in coal seam embodied in mountain by the method of theoretic analysis,numerical simulation and local survey. The dissertation brings forward the bearing stratum concept on the roadway in coal seam embodied in mountain, studies the existing condition and influent factors of the bearing stratum.