山东煤炭科技2024，Vol.42Issue(8)：127-131,136,142,7.DOI:10.3969/j.issn.1005-2801.2024.08.025
煤厚变异区三带分布规律研究
Research on Distribution Law of Three Zones in Coal Thickness Variation Mining Area
刘方1
作者信息
- 1. 通用技术集团工程设计有限公司,山东 济南 250031
- 折叠
摘要
Abstract
Taking the working face of Tengzhou Dongda Mining Industry that has the coal thickness variation situation as the research background,numerical simulation,formula calculation,on-site testing and other research methods are used to analyze the movement law of the overlying rock strata and the development characteristics of the"three zones"after mining in the coal thickness variation area.The development height of the"three zones"after coal seam mining is studied,and the"three zones"height of the 7202 working face is finally determined.Through on-site measurements,it is obtained that the height of the collapse zone is 28.4 m and the height of the fault zone is 84.5 m.Using the"three down"empirical formula,it is calculated that the errors are 23.3%and 4.7%,respectively;The results obtained through numerical simulation have errors of 9.2%and 10.2%,respectively.The research results indicate that the use of numerical simulation method can effectively predict the height of the"three zones"in the coal thickness variation area,which can provide reference for the safe mining evaluation of coal thickness variation areas under similar conditions.关键词
煤厚变异区/三带分布规律/数值模拟Key words
coal thickness variation mining area/three zones distribution law/numerical simulation分类
矿业与冶金引用本文复制引用
刘方..煤厚变异区三带分布规律研究[J].山东煤炭科技,2024,42(8):127-131,136,142,7.
