煤炭与化工2025，Vol.48Issue(10)：1-6,6.DOI:10.19286/j.cnki.cci.2025.10.001
安山煤矿400m超长工作面面间煤柱宽度优化研究
Study on width optimization of coal pillar between faces in 400 m super long working face of Anshan Mine
程浪波 1杜超杰 2胡本杰 1贾子轩3
作者信息
- 1. 陕西涌鑫矿业有限责任公司安山煤矿,陕西榆林 719400
- 2. 陕西涌鑫矿业有限责任公司,陕西榆林 719400
- 3. 西安科技大学能源与矿业工程学院,陕西西安 710054
- 折叠
摘要
Abstract
Aiming at the problem of width controlling of coal pillars between super-long working faces,No.135104 Face of Anshan Mine was taken as the research object,through the combination of theoretical analysis,numerical simulation and field test,the stress response of coal pillars between super-long working faces was revealed and a reasonable range of coal pillar width was proposed.According to the limit equilibrium theory of rock mass,the theoretical width range of coal pillar was 11.53 m＞w＞9.88 m.Through the comparative analysis of numerical simulation,it was concluded that due to the existence of the goaf in the super-long working face,the stress response of the coal pillar was inclined to the goaf side as a whole,and the plastic failure range of the coal pillar near the goaf side was obviously larger than that of the roadway side,which verified the superiority of the 10 m coal pillar in the deformation of the surrounding rock.Through the monitoring of the stress of the coal pillars between the faces and the monitoring of the damage of the side of the crossheading,it was seen that the distance of the peak stress was greater than that of the conventional working face due to the stress of the super-long working face.It was determined that the advance support distance of No.135104 Face should be kept above 50 m.关键词
煤柱宽度/数值模拟/窄煤柱/矿压显现特征Key words
coal pillar width/numerical simulation/narrow pillar/mine pressure characteristics分类
矿业与冶金引用本文复制引用
程浪波,杜超杰,胡本杰,贾子轩..安山煤矿400m超长工作面面间煤柱宽度优化研究[J].煤炭与化工,2025,48(10):1-6,6.
