山东煤炭科技2024，Vol.42Issue(5)：136-141,6.DOI:10.3969/j.issn.1005-2801.2024.05.027
厚黄土层深部开采覆岩和地表移动规律研究
Research on Overburden Rock and Earth Surface Movement Laws in Thick Loess Layer Deep Mining
马晓强 1薛志强 1尉博虎1
作者信息
- 1. 陕西彬长孟村矿业有限公司,陕西 咸阳 713600
- 折叠
摘要
Abstract
In order to reveal the overburden rock and earth surface movement laws of deep mining conditions in loess layers,based on the mining geological conditions of the 401101 working face of Mengcun Mine,a combination method of earth surface measurement and numerical simulation is used to analyze the distribution and variation characteristics of earth surface movement basins in the process of coal seam mining.The maximum values of subsidence,inclination,curvature,horizontal movement,and horizontal deformation are calculated and determined;it is revealed that deep mining of thick loess layers has characteristics of small earth surface subsidence amount,concentrated movement deformation,and sudden subsidence in the early stage of earth surface movement.It is determined that the subsidence amount during the active stage of the earth surface accounted for 66.8%of the total amount of subsidence;the earth surface movement angle parameters and probability integral prediction parameters of the mine are determined;the displacement and stress variation laws of overburden rock during mining are studied.The research results can provide useful references for the mining planning and design of this mining area subsequent working faces and mines with similar mining conditions,as well as the control of mining damage.关键词
厚黄土层/深部开采/地表实测/移动变形规律Key words
thick loess layer/deep mining/earth surface measurement/movement deformation law分类
矿业与冶金引用本文复制引用
马晓强,薛志强,尉博虎..厚黄土层深部开采覆岩和地表移动规律研究[J].山东煤炭科技,2024,42(5):136-141,6.
