水文地质复杂矿井首采面矿压规律及围岩裂隙发育研究
Research on the Mine Pressure Law and Development of Surrounding Rock Fissures in the First Mining Face of Hydrogeological Complex Mines
臧德梁1
作者信息
- 1. 宁夏红墩子煤业有限公司,宁夏 银川 750000
- 折叠
摘要
针对红一煤矿矿井水文地质复杂、断层多、采掘工作面涌水量大、导水断裂带发育等问题,以首采面 1150401 工作面为例,通过相似材料模拟试验的方法,从煤岩物理力学参数测试、两顺槽围岩松动圈探测及支架工作阻力分析,研究得出首采面初次来压、周期来压步距、超前采动影响范围及超前采动裂隙发育情况.研究结果为红一煤矿乃至红墩子矿区安全生产、防治水工作提供了重要的技术支撑.
Abstract
In view of the problems of complex hydrogeological,multiple faults,large water inflow in the mining and excavation working face,the development of water conducting fault zones and so on in Hongyi Coal Mine,taking the first mining face 1150401 working face as an example,the method of similar material simulation experiment is conducted to study the initial pressure,periodic pressure step distance,impact range of advanced mining,and fissures development situation of advanced mining in the first mining face through testing of coal rock physical and mechanical parameters,detection of the loose circle of the surrounding rock in the two crossheadings,and analysis of bracket working resistance.The research results provide important technical support for the safety production and water prevention and control work in Hongyi Coal Mine and even Hongdunzi mining area.
关键词
相似材料模拟试验/围岩松动圈/围岩裂隙/支护承载工况Key words
similar material simulation experiment/surrounding rock loose circle/surrounding rock fissure/support bearing working condition引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据