中国地质灾害与防治学报2012，Vol.23Issue(4)：69-75,7.
综放面合理护巷煤柱宽度确定与回采巷道支护方案设计
Confirmation of reasonable chain pillar width and supporting scheme design of mining gateway in fully mechanized caving face
摘要
Abstract
Based on geological data of Yangwangou coal mine, applied limit equilibrium theory , it can conclude that reasonable pillar width is 25m; Adopting the research methods of FLAC3D numerical simulation, the distributional regularities of the vertical stress and elastic-plastic area in different coal pillar width were analyzed, and the result show that reasonable pillar width is 25 - 30m;Eventually,it is certain that the reasonable pillar width is not less than 25m of Yangwangou coal mine. Supporting schemes were designed for different state of surrounding rock in air return way. Stress state and displacement distribution of supporting schemes were analyzed by numerical simulation. The result show that supporting schemes are reasonable and can effective control deformation and failure of surrounding rock.关键词
煤柱留设/FLAC3D/数值模拟/回采巷道支护Key words
leaving coal pillar/FLAC3D/numerical simulation/gateway support分类
矿业与冶金引用本文复制引用
朱志洁,张宏伟,陈蓥,张海峰,陈雄山..综放面合理护巷煤柱宽度确定与回采巷道支护方案设计[J].中国地质灾害与防治学报,2012,23(4):69-75,7.基金项目
国家自然科学基金项目 （）
辽宁工程技术大学研究生科研资助项目 （）
