成都理工大学学报（自然科学版）2026，Vol.53Issue(1)：94-105,12.DOI:10.12474/cdlgzrkx.2024062102
不同地形条件下工作面埋深对开采沉陷的影响
The impact of working face burial depth on mining subsidence under different terrain conditions
摘要
Abstract
To study the impact of the working face depth on mining subsidence under the influence of different terrain conditions,a coal mine in Shanxi Province was taken as the engineering background.A combination of theoretical analysis and MIDAS numerical simulations was used to study four situations:separately mining 8#and 11#coal under mountainous valley terrain conditions,and under plain terrain conditions.The surface movement and deformation characteristics,as well as the overlying rock stress-strain characteristics of each model during the mining process,were compared and analyzed.The results indicate that the settlement funnel formed by two working faces during repeated horizontal mining will affect each other,and the surface subsidence after mining is the superposition of the surface subsidence caused by single working face mining.When mining the same working face,the impact of different terrain conditions on surface deformation differs,and as the depth of the working face increases,the influence of terrain on mining subsidence decreases.As the depth of the coal seam increases,the overall subsidence of the surface decreases.However,under the terrain conditions of mountainous valleys,as the coal seam burial depth increases,the vertical displacement caused by coal mining on the surface directly above the middle coal pillar correspondingly increases.These research results provide reference for surface protection and geological disaster prevention in similar loess valley areas.关键词
开采沉陷/地形条件/工作面埋深/MIDAS/煤矿Key words
mining subsidence/terrain conditions/working face burial depth/MIDAS/coal mine分类
天文与地球科学引用本文复制引用
吕文婧,吕义清..不同地形条件下工作面埋深对开采沉陷的影响[J].成都理工大学学报（自然科学版）,2026,53(1):94-105,12.基金项目
山西省自然科学基金项目(2021030212411). （2021030212411）
