水文地质条件复杂段老空积水的防治技术

Control Techniques of Goaf Water in the Section with Complex Hydrogeological Conditions

郑煤集团白坪煤业公司老空积水严重威胁着综采工作面的安全掘进和回采。在分析11111和11131工作面地质及水文地质条件的基础上,介绍了白坪煤业公司在老空积水下侧留小煤柱掘进的防治水技术。采取掘进中集中探放水、利用套管控制放水量的方法有效消除了积水威胁,为防治老空积水提供了经验。

The goaf water is a serious threat to the safe tunneling and mining of the full-mechanized working face in Baiping Coal Mine of Zhengzhou Coal Industry Group. On the basis of the investigation on geological and hydrogeological conditions of 11111 and 11131 working faces,this paper introduced some water control technologies of tunneling under the goal water with small coal pillars left. This paper also provided the experience in preventing the goal water by adapting water detection and water release concentratedly,and by using sleeve to control water release. These methods remove the threat of the goaf water effectively.