山东煤炭科技2024，Vol.42Issue(3)：29-33,5.DOI:10.3969/j.issn.1005-2801.2024.03.007
邻近煤层同采巷道布置及安全错距优化研究
Research and Optimization on the Layout and Safety Staggered Distance of Adjacent Coal Seam Simultaneous Mining Roadways
苏效祥 1董乾坤 2时圣亚2
作者信息
- 1. 山东科技大学能源与矿业工程学院,山东 青岛 266590
- 2. 山西中阳华润联盛苏村煤业有限公司,山西 吕梁 033400
- 折叠
摘要
Abstract
In view of the unreasonable layered simultaneous mining staggered distances of the 6th coal and the 10th coal in Sucun Coal Mine,as well as the upper and lower working faces mining affected by mutual influence of dynamic pressure,resulting in problems of roof caving,wall fragmentation,and support damage in the working face and so on,a combination method of theoretical analysis,numerical simulation,and engineering application is used to optimize and study the layout location and staggered distance of adjacent coal seam simultaneous mining working face roadways.The research results indicate that considering the stress variation characteristics of the surrounding rock of the 10th coal seam roadway under different mining ways,it is determined to adopt an aligned type layout for the upper and lower coal seam roadways;considering the movement of overlying rock during the lower coal seam mining,the coal pillar in the lower coal seam section should be greater than 16.7 m;the reasonable staggered distance of the working face during simultaneous mining of the upper and lower coal seams is around 45 m.The application of research results in engineering practice shows that the force of the working face support is stable during the simultaneous mining period,achieving safe and efficient simultaneous mining of adjacent coal seams.This has important guiding significance for the mining of coal seam groups under similar conditions.关键词
邻近煤层/同采工作面/巷道布置/安全错距/数值模拟Key words
adjacent coal seam/simultaneous mining working face/roadway layout/safety staggered distance/numerical simulation分类
矿业与冶金引用本文复制引用
苏效祥,董乾坤,时圣亚..邻近煤层同采巷道布置及安全错距优化研究[J].山东煤炭科技,2024,42(3):29-33,5.
