摘要
针对某煤矿特厚波状煤层综放面护巷煤柱合理留设的问题,运用现场实测、数值模拟和理论分析相结合的方法,提出了大煤柱护巷技术方案,分析了大煤柱护巷煤柱的稳定性条件,并确定了大煤柱护巷留设合理尺寸。可为其他具有相似地质条件的护巷煤柱合理留设设计提供参考。
Based on the problem of reasonable retainment coal pillar of fully-mechanized top coal caving mining face in extra thick and undulate coal seam in a coal mine, the plan of the wide coal pillar of protecting the roadway technology was put forward, then the stability conditions of wide coal pillar of protecting the roadway was analyzed by adopted the method of combining the observation and numerical simulation and theory analysis, and the reasonable size of wide coal pillar was determined by theory analysis. This study can provide the reference for other reasonable retainment coal pillars of similar conditions.
出处
《煤炭技术》
CAS
北大核心
2016年第1期71-74,共4页
Coal Technology
基金
泰山学者建设工程专项经费资助项目(201309)
关键词
特厚煤层
波状
综放开采
护巷煤柱
extra coal seam
undulate
sub-level caving mining
sectional pillar
