深井冲击倾向性煤层沿空掘巷窄煤柱尺寸优化研究  

Optimization Research on Size of Narrow Coal Pillar of Gob-side Entry Driving in Deep Shaft Impact-tendency Coal Seam

作　　者：岳茂庄 郭昆明 YUE Maozhuang;GUO Kunming(Shandong Tangkou Coal Industry Co.,Ltd.,Jining 272055,China;State Key Laboratory of Coal Mine Disaster Prevention and Control,Chongqing 400039,China;CCTEG Chongqing Research Institute,Chongqing 400039,China)

机构地区：[1]山东唐口煤业有限公司,山东济宁272055 [2]煤矿灾害防控全国重点实验室,重庆400039 [3]中煤科工集团重庆研究院有限公司,重庆400039

出　　处：《煤炭技术》2025年第2期81-85,共5页Coal Technology

摘　　要：针对深井冲击倾向性煤层中沿空掘巷窄煤柱的尺寸优化问题,通过综合运用数值模拟方法与现场监测数据,旨在探索优化窄煤柱的设计尺寸,以提高煤矿安全生产水平。煤柱宽度6、7、9 m的方案对比结果表明,适宜的煤柱宽度不仅能有效控制围岩的变形,还能显著降低冲击地压的发生概率,对唐口矿6304轨道顺槽,选择优化后9 m煤柱宽度,经济性、稳定性最优。这一成果为深井冲击倾向性煤层的煤柱设计提供理论与实践指导,也可为类似地质条件下的煤柱留设提供一定的参考。Aiming at the size optimisation of narrow coal pillar of gob-side entry driving in deep shaft impact-tendency coal seams,through the comprehensive use of numerical simulation methods and realisation field monitoring data,aim to explore the optimisation of the design size of the narrow coal pillar in order to improve the safety production level of coal mines.The comparison results of the schemes with 6 m,7 m and 9 m width of coal pillar show that the appropriate width of coal pillar can not only effectively control the deformation of surrounding rock,but also significantly reduce the probability of impact ground pressure,and for the 6304 trackway of Tangkou mine,the optimised 9 m width of coal pillar is chosen to have the best economy and stability.This result provides theoretical and practical guidance for the design of coal pillars in deep well impact-tendency coal seams,and also provides certain reference for the coal pillar retention under similar geological conditions.

关 键 词：冲击倾向性 沿空掘巷 煤柱尺寸优化 数值模拟 监测 

分 类 号：TD822[矿业工程—煤矿开采]