辽宁工程技术大学学报（自然科学版）Issue(5)：582-586,5.DOI:10.3969/j.issn.1008-0562.2013.05.002
急倾斜煤层巷帮变形失稳数值模拟
Numerical simulation on instability of roadway rise side in steep coal seam
摘要
Abstract
In order to control the instability of roadway rise side in steep coal seam in XinQiang mine, this paper studied the laws of roadway surrounding deformation and failure, the reasonable supporting approaches and parameters by means of numerical simulation, theoretical analysis and on-site tests. The study result shows that the damage is severe at both ends of the gob in steep coal seam and the damage at the bottom side is more severe. The deformation and failure is non-symmetry in the roadway within the areas affected by goaf. The Roof, floor and rise side of the roadway suffer severe damages without any supports. When supporting with bolts, floor heave becomes the main factor of stability of the roadway rise side. The foot is a critical part of the rise side, and it requires special handling. The final support parameters are determined by numerical simulation and optimization, and are tested on-site.The result of the observation shows that the roadway deformation is controlled effectively, and an improved supporting effect is achieved.关键词
急倾斜煤层/上帮稳定性/数值模拟/煤岩抽冒/锚网支护/分布特征/支护形式/支护参数Key words
steep coal seam/stability of the rise side/numerical simulation/coal rocks caving/bolt-net supporting/distribution characteristics/supporting form/supporting parameter分类
矿业与冶金引用本文复制引用
秦涛,刘永立,冯俊杰,董长吉..急倾斜煤层巷帮变形失稳数值模拟[J].辽宁工程技术大学学报（自然科学版）,2013,(5):582-586,5.基金项目
国家自然科学基金资助项目（51074068）；教育部科学技术研究重点资助项目（210064）；黑龙江省教育厅科研资助项目 （）
