摘要
基于某煤矿特厚煤层条件下易风化大断面巷道支护效果差的问题,运用现场实测、数值模拟和理论分析相结合的方法,研究了特厚煤层条件下易风化大断面巷道变形破坏的机理,提出了特厚煤层易风化大断面巷道的优化设计方案,优化设计了联合支护方案中锚杆的支护参数。
Based on the problem of the roadway supporting under the extremely thick coal seam with easily weathered and large cross section roadway in a coal mine, the deformation and failure mechanism of the roadway was analyzed by adopting the method of combining the observation and numerical simulation and theory analysis, then the roadway supporting and the unite supporting technology by optimization design, and the bolt supporting parameters in the combined support plan was determined.
出处
《煤炭技术》
CAS
北大核心
2016年第2期60-62,共3页
Coal Technology
基金
贵州省科学技术基金项目(黔科合J字LKLS[2013]03号)
关键词
大断面巷道
松动圈
支护设计
large cross section roadway
loose circle
supporting design
