山东煤炭科技2024，Vol.42Issue(2)：132-136,5.DOI:10.3969/j.issn.1005-2801.2024.02.029
近距煤层合层综放工作面矿压显现规律研究
Research on the Law of Mine Pressure Behavior in Close Distance Coal Seam Laminated Layer Fully Mechanized Caving Face
董甜 1高召宁1
作者信息
- 1. 安徽理工大学矿业工程学院,安徽 淮南 232001
- 折叠
摘要
Abstract
Aiming at issues such as the movement and damage of overlying strata and the law of mine pressure behavior in close distance coal seam laminated layer fully mechanized caving mining and so on,taking the 842 first fully mechanized caving face in Wobei Coal Mine as the engineering background,similar simulation experiments and numerical analysis methods are used to study the working face mining process.The results show that under similar simulation experiments,the height of the overlying rock caving zone is 38 m,the height of the fissure zone near the open cut is 103.8 m,the height of the fissure zone near the stop mining line is 95.4 m,the initial pressure step distance of the basic roof is 28 m,and the periodic pressure step distance is 17.5 m.The numerical analysis shows that the displacement field and stress field of the surrounding rock in the stope are quite similar,and the distribution characteristics of the support pressure in front of the stope are consistent with the results of similar simulation experiments.The research results can provide technical guidance for the design of coal pillar width and working face support parameters in close distance coal seam laminated layer fully mechanized caving face.关键词
近距煤层/合层/综放/矿压/规律Key words
close distance coal seam/laminated layer/fully mechanized caving/mine pressure/law分类
矿业与冶金引用本文复制引用
董甜,高召宁..近距煤层合层综放工作面矿压显现规律研究[J].山东煤炭科技,2024,42(2):132-136,5.
