陕西煤炭2025，Vol.44Issue(9)：1-7,7.DOI:10.20120/j.cnki.issn.1671-749x.2025.0901
神府矿区4-2煤层复合顶板面间煤柱宽度优化研究
Optimization of 4-2 coal seam compound roof inter-face coal pillar width in Shenfu mining area
摘要
Abstract
Based on numerical simulation technology,we investigate the rational optimization scheme for 4-2 coal compound roof inter-face coal pillars in the Shenfu mining area.With increasing mining depth,ground pressure issues have become in-creasingly severe,making roof stability a critical factor in coal mine safety production.Through analysis of the geological conditions,coal seam mining methods,and ground pressure patterns in the Shenfu mining area,this paper examines the effect of coal pillar width on roof stability,mine pressure control,and support structures.Research indicates that traditional coal pillar width designs often result in resource waste and are unfavorable for roof stability,while optimized coal pillar de-signs can improve mining efficiency and effectively reduce resource waste.The paper provides detailed analysis of how dif-ferent coal pillar width configurations affect the movement patterns of overlying strata,particularly the pillar's influence on stress states and strain variations in the overburden.Through numerical simulation of the"three vertical zones"and"three horizontal zones"after mining activity,this study investigates the relationship between coal pillar width,mine pressure,and roof stability,revealing the different widths of pillar's influence on roof strata evolution trends.Based on this analysis,the paper proposes that rational design of inter-face coal pillar width in the Shenfu mining area and similar mining districts can significantly improve mining safety and extraction efficiency.关键词
数值模拟/面间煤柱/覆岩层/复合型顶板Key words
numerical simulation/inter-face coal pillar/overlying strata/compound roof分类
矿业与冶金引用本文复制引用
王张辉,王全鑫..神府矿区4-2煤层复合顶板面间煤柱宽度优化研究[J].陕西煤炭,2025,44(9):1-7,7.基金项目
国家自然科学基金项目(52004200) （52004200）
