高水压松散含水层下超长工作面突水预测及控制
发布时间：2019-03-08 19:33
【摘要】：祁东煤矿8222工作面为高承压含水层下的超长工作面(最大为235m),突水威胁大,针对8222工作面复杂的水文地质条件,为防止回采期间发生压架突水事故,研究了松散层含水层富水性特征、基岩风化的工程地质特征、阻隔水性能及开采覆岩破坏规律等内容,采用了顶板超前预裂爆破、长观孔预警、增大工作面支架阻力、合理控制推进速度等技术。研究结果表明,在采取上述综合措施的情况下,高水压松散含水层下超长采煤工作面可实现安全可控回采。
[Abstract]:The 8222 face of Qidong Coal Mine is an ultra-long working face under high confined aquifer (the maximum is 235m), and the water inrush threat is great. In view of the complex hydrogeological conditions of face 8222, in order to prevent the occurrence of water inrush accident of pressure frame during mining, The water-rich characteristics of loose aquifer, the engineering geological characteristics of bedrock weathering, the performance of water barrier and the failure law of overlying rock in mining are studied. The roof pre-splitting blasting is adopted, the long-term hole warning is adopted, and the support resistance of working face is increased. Reasonable control of propulsion speed and other technologies. The research results show that the safety and controllable recovery can be realized in the ultra-long coal mining face under high water pressure loose aquifer under the circumstances of taking the above comprehensive measures.
【作者单位】： 安徽理工大学能源与安全学院;安徽煤矿安全监察局;
【分类号】：TD745
本文编号：2437137
[Abstract]:The 8222 face of Qidong Coal Mine is an ultra-long working face under high confined aquifer (the maximum is 235m), and the water inrush threat is great. In view of the complex hydrogeological conditions of face 8222, in order to prevent the occurrence of water inrush accident of pressure frame during mining, The water-rich characteristics of loose aquifer, the engineering geological characteristics of bedrock weathering, the performance of water barrier and the failure law of overlying rock in mining are studied. The roof pre-splitting blasting is adopted, the long-term hole warning is adopted, and the support resistance of working face is increased. Reasonable control of propulsion speed and other technologies. The research results show that the safety and controllable recovery can be realized in the ultra-long coal mining face under high water pressure loose aquifer under the circumstances of taking the above comprehensive measures.
【作者单位】： 安徽理工大学能源与安全学院;安徽煤矿安全监察局;
【分类号】：TD745
【相似文献】
相关期刊论文 前10条
1 杨文柱;朱光生;华实;郭伟革;张伍华;;回采期间固定漏斗出矿的留矿法实践[J];有色金属(矿山部分);1992年04期
2 王俊生;张军义;;浅谈衰老矿井回采期间的防灭火管理[J];煤矿现代化;2011年01期
3 徐仲东;;跨上山开采的实践[J];煤矿现代化;2007年05期
4 周游;;双突综采面回采期间的瓦斯综合治理[J];能源技术与管理;2014年04期
5 陈付军;赵振辉;;邢台矿下水平回采期间瓦斯综合治理技术[J];河北煤炭;2009年02期
6 杨凤春;郭福军;;近距离煤层回采期间瓦斯涌出量分析[J];科技信息;2014年02期
7 裴印昌;杨俊民;徐洪斌;龚邦军;;综采面回采期间采空区注氮气防火的应用[J];煤炭技术;2007年03期
8 韩泉胜;梁超;郭玉帅;张智慧;;浅析8101工作面回采期间瓦斯治理问题及对策[J];能源技术与管理;2013年05期
9 李子生,章瑜;彭山锡矿采场稳定性的模型试验[J];南方冶金学院学报;1991年03期
10 高立群;王来彬;郭玉印;田兆龙;;孤岛综放工作面回采期间瓦斯综合防治技术[J];煤矿现代化;2013年05期
，本文编号：2437137
本文链接：https://www.wllwen.com/kejilunwen/anquangongcheng/2437137.html
