煤炭科技2025，Vol.46Issue(1)：89-92,4.DOI:10.19896/j.cnki.mtkj.2025.01.017
冲击危险煤层采空区煤柱安全性研究
Research on safety of coal pillar in goaf of coal seam subjected to shock hazards
申银朋1
作者信息
- 1. 陕西郭家河煤业有限责任公司,陕西宝鸡 721000
- 折叠
摘要
Abstract
The presence of coal pillars in the goaf of coal seams with rock burst is a major hidden danger in the prevention and control of rock burst.Research on the safety of coal pillars to prevent rockburst accidents caused by the influence of coal pillars also complies with relevant regulations.Due to water inrush in the No.1309 working face of Guojiahe Coal Mine,the support of the working face was crushed and unable to be recovered.Therefore,the working face adopted a jumping face method and re opened the open-off cut for re-covery.Resulting in a coal pillar with a width of about 200 m remaining in the central goaf of the original No.1309 working face.There-fore,safety research was conducted on coal pillars in goaf areas.Through the analysis of the factors affecting the impact ground pressure of coal pillars in the goaf of the 1309 working face,the comprehensive index method evaluation shows that geological factors have a rela-tively small impact.The residual coal pillars in the goaf of the 1309 working face are classified as having no impact hazard to other min-ing working faces.关键词
特厚煤层/煤柱/综合指数/极限载荷/冲击危险Key words
extra-thick coal seam/coal pillar/composite index/limit load/impacting分类
矿业与冶金引用本文复制引用
申银朋..冲击危险煤层采空区煤柱安全性研究[J].煤炭科技,2025,46(1):89-92,4.
