山东煤炭科技2025，Vol.43Issue(5)：18-23,6.DOI:10.3969/j.issn.1005-2801.2025.05.004
10403工作面煤柱宽度设计研究
Design and Research on Coal Pillar Width of the 10403 Working Face
董江伟1
作者信息
- 1. 山西煤炭运销集团吕梁有限公司,山西 孝义 032300
- 折叠
摘要
Abstract
In view of the existing problems of unreasonable width of roadway protection coal pillars and others in underground mines,in order to improve coal extraction rate and reduce resource waste,taking the 10403 working face of Jinda Coal Industry as the research background,the limit equilibrium theory and"internal stress field"theory are used to calculate the width of coal pillars for roadway protection,which is 5.7 m≤B≤8.2 m.Numerical simulation is conducted to study the vertical stress,displacement,and plastic zone changes characteristics of the roadway surrounding rock with different coal pillar widths.Combined with theoretical calculation,a reasonable coal pillar width of 6 m is determined,and a three-dimensional surrounding rock support form for the roadway is designed.Through on-site monitoring of the movement amount of the roadway roof and floor and the force situation of the anchor rod,the results show that the control effect of the roadway surrounding rock is significant,meeting the needs of safe production during the stoping period.关键词
沿空掘巷/煤柱/巷道围岩Key words
roadway excavation along goaf/coal pillar/roadway surrounding rock分类
矿山工程引用本文复制引用
董江伟..10403工作面煤柱宽度设计研究[J].山东煤炭科技,2025,43(5):18-23,6.
