论文部分内容阅读
开采保护层区域瓦斯治理技术为现今国内外区域性瓦斯治理的主要措施,而上向拦截钻孔目前为开采保护层有效预抽卸压瓦斯的主要方式之一,通过分析研究朱仙庄矿8、10煤层间距、瓦斯涌出量、采动冒落带及拦截钻孔瓦斯抽放情况,对上向拦截钻孔布置方式进行设计优化,经在矿井Ⅱ1053保护层面实施应用,提高了上向拦截钻孔预抽瓦斯效果,解决了保护层高效开采期间采空区瓦斯涌出治理难题,实现了保护层安全、高效连续回采,取得了良好社会和经济效益。
The technology of mine gas exploitation in the area of mining protection is the main measure of regional gas control in the world at present, and the interception drilling is one of the main ways to effectively pre-relieve gas pressure in the protective layer. By analyzing and studying Zhu Xian Zhuang 8,10 Coal seam spacing, gas emission, mining caving belt and intercepting gas drainage of boreholes. The design of intercepting borehole layout was optimized. After the application of mine Ⅱ 1053 protection level, the uphole interception drilling Pre-drainage gas effect, to solve the problem of methane emission from goaf during the high-efficiency mining of the protective layer, to achieve safe and efficient continuous protection of the protective layer, and achieved good social and economic benefits.