山东煤炭科技2024，Vol.42Issue(2)：44-48,53,58,7.DOI:10.3969/j.issn.1005-2801.2024.02.010
综放开采运输巷矸石膏体充填无煤柱开采技术研究
Research on Non Coal Pillar Mining Technology of Gangue Gypsum Body Filling in Transportation Roadway of Fully Mechanized Caving Mining
孙钦亮 1张跃华1
作者信息
- 1. 山东恒驰矿业装备科技有限公司,山东 泰安 271202
- 折叠
摘要
Abstract
It is difficult to recover the remaining coal pillars of the working face during the stoping process,which will result in a large amount of waste of underground coal resources.In view of the problem of waste of coal pillar resources in Zhangji Coal Mine,this article analyzes the stress distribution law of the surrounding rock during the two stoping processes of Zhangji Coal Mine's fully mechanized caving face through the mean of numerical simulation,proposes the non coal pillar mining technology of gangue gypsum body filling in the fully mechanized caving roadway,improves the roadway support scheme in the on-site engineering,and verifies the feasibility and safety of the technology of non coal pillar mining.The results show that during the stoping process of the upper working face,the stress peak acting on the roof of the solid coal is slightly greater than that on the roof of the filling body;during the stoping of the lower working face,within a range of 10-20 m advance,the stress maximum value under the solid coal side will exceed that at the filling body,while outside the range of 20 m,the stress maximum value under the solid coal side will be lower than that at the filling body,achieving non coal pillar mining and providing a technical basis for solving the remaining problem of coal pillars.关键词
综放巷内充填/无煤柱掘巷/围岩控制/数值模拟Key words
filling inside fully mechanized caving roadway/non coal pillar roadway excavation/surrounding rock control/numerical simulation分类
矿业与冶金引用本文复制引用
孙钦亮,张跃华..综放开采运输巷矸石膏体充填无煤柱开采技术研究[J].山东煤炭科技,2024,42(2):44-48,53,58,7.
