摘要
为了更妤地掌握工作面前方层间距厚度变化情况,做出科学、合理的探放水计划及顶板防护措施,本文通过工作面顺层超前长探与顶板探放水及垂直顶板探孔相结合的综合探测方式,并结合工作面水文地质资料,有针对性的对探放水方案进行了设计研究,并对极近距离煤层上覆采空积水进行了超前探放。事实证明,联合超前探测方式疏放近距离煤层采空积水具有可行性的,不仅超前消除了积水隐患,避免在掘进过程中因顶板垮塌而造成的涌水事故,还为近间距煤层的掘进、回采提供了精确的煤层间距数据,为工作面安全回采提供了宝贵资料。
In order to better grasp the change of the thickness between layers in front of the working face,and make a scientific and reasonable plan for water exploration and roof protection measures,this paper designed and studied the water exploration and drainage scheme in a targeted way by combining the long-term exploration along the seam with the water exploration and drainage of the roof and the vertical roof hole exploration,and combined with the hydrogeological data of the working face,and carried out the water exploration and drainage of the goaf overlying the extremely close coal seam in advance.Facts have proved that it is feasible to discharge goaf water in short distance coal seam by combined advanced detection method,which not only eliminates hidden danger of water accumulation in advance and avoids water inrush accident caused by roof collapse during tunneling,but also provides accurate data of coal seam spacing for tunneling and mining of short distance coal seam,and provides valuable information for safe mining of working face.
作者
张玉恒
Zhang Yuheng(Ximing Mine of Xishan Coal and Electricity Co.,Ltd.,Shanxi,030052)
出处
《当代化工研究》
2021年第6期49-50,共2页
Modern Chemical Research
关键词
极近距离煤层
探放水
超前长探
采空积水
顶板探孔
extremely close coal seam
exploration and drainage
advanced long exploration
goaf water accumulation
roof hole exp-loration
