陕西煤炭2025，Vol.44Issue(8)：32-37,71,7.DOI:10.20120/j.cnki.issn.1671-749x.2025.0806
门克庆煤矿厚硬岩层下邻侧采动覆岩运动规律模拟研究
Simulation on the movement law of adjacent mining overlying strata under thick and hard rock layers in Menkeqing Coal Mine
韩刚 1张锦涛 2解嘉豪 1于思源 2郝晓琦 1贺晓浪1
作者信息
- 1. 中煤能源研究院有限责任公司,陕西西安 710054||中煤(鄂尔多斯市)能源科技有限责任公司,内蒙古鄂尔多斯 017200
- 2. 中国矿业大学 矿业工程学院,江苏徐州 221116
- 折叠
摘要
Abstract
The coal-bearing strata in the Hujierte mining area of the Ordos Basin are generally characterized by thick sand-stone layers.After the initial mining face,the expansion of the mining range in adjacent working faces has led to significant movement and deformation of the thick rock layers,resulting in prominent dynamic hazards,which has increased the risk of roof disasters and exacerbated safety concerns.This paper,based on the engineering conditions of the adjacent goaf of the 3106 working face in the Menkeqing Mine,employs three-dimensional simulation methods to study the three-dimensional characteristics of overlying strata movement and patterns of bed separation evolution under the initial mining of the first working face and the secondary disturbance from adjacent face mining.The results indicate that the first working face,influ-enced by the thick-and-hard rock layers,exhibits minor subsidence and horizontal movement in the higher thick-and-hard strata.The bed separations formed at the top boundary of the fractured zone and within the bending zone in the middle of the working face develop with mining but don't easily close.After adjacent mining,the roof collapse area in the middle of the mined goaf no longer subsides,and the higher rock layers subside uniformly as a whole.The horizontal movement of the rock layers is minor,while the horizontal movement increases significantly at the side boundaries of the goaf.The higher bed sep-arations continue to persist and don't completely close.Our research findings provide a reference for the analysis of the three-dimensional characteristics of overlying strata movement under thick and hard rock layer conditions,the design of in-situ monitoring positions for internal movement in ground boreholes,and the timing control of bed separation grouting in goaf areas.关键词
岩层运动/邻侧开采/厚硬岩层/离层演化Key words
strata movement/adjacent mining/hard-and-thick strata/separation layers分类
矿业与冶金引用本文复制引用
韩刚,张锦涛,解嘉豪,于思源,郝晓琦,贺晓浪..门克庆煤矿厚硬岩层下邻侧采动覆岩运动规律模拟研究[J].陕西煤炭,2025,44(8):32-37,71,7.
