基于定性定量融合的大巷煤柱回收工作面安全性评价方法研究

    Safety evaluation method for main roadway coal pillar recovery working face based on integration of qualitative and quantitative approaches

    • 摘要: 针对柳塔煤矿12127大巷煤柱回收工作面安全回采,开展定性与定量相结合的安全性评价。根据工作面地质条件、开采布局、历史生产资料,从瓦斯、煤尘、火灾、水灾、顶板等主要灾害开展定性评价,确定其危险源和诱发因素。在定性评价的基础上,通过矿压观测、煤岩力学性质评价和现场调查,评价该工作面冲击地压危险性,参考相关行业标准,进行分析判断。并对其通风、排水、顶板管理、瓦斯防治等防治系统和技术措施的安全性进行了评价。研究结果显示,12127工作面的地质条件稳定,冲击倾向性为弱,目前的防治措施能够满足安全回采的需要。

       

      Abstract: A safety evaluation combining qualitative and quantitative approaches is conducted for the 12127 main roadway coal pillar recovery working face of Liuta Coal Mine. Based on geological conditions, mining layout, and historical production records, a systematic qualitative analysis is carried out for major hazards, including gas, coal dust, fire, water inrush, and roof fall, to identify potential hazards and triggering factors. On this basis, rock burst risk of the working face is evaluated through mine pressure observation, coal-rock mechanical property analysis, and field investigation, with reference to relevant industry standards for assessment and judgment. In addition, the safety of prevention systems and technical measures, including ventilation, drainage, roof control, and gas management, is examined. The results indicate that the 12127 working face has stable geological conditions, weak impact tendency, and an existing prevention system that meets the requirements for safe mining.

       

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