第44卷第2期 2017年4月
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
唐辉.深井特厚煤层短壁工作面快速回采条件下瓦斯防治技术[J].矿业安全与环保,2017,44(2：79-83. 文章编号：10084495(2017)02007905
深井特厚煤层短壁工作面快速回采条件下
瓦斯防治技术
唐辉12
Vol. 44 No. 2 Apr.2017
（1.煤科集团沈阳研究院有限公司，辽宁沈阳110016；2.煤矿安全技术国家重点实验安，辽宁抚顺113122）
摘要：针对深井特厚煤层短壁工作面快速回采条件下瓦斯治理的难题，以唐口煤矿6305综放工作面为工程实例，利用分源预测法对6305工作面掘进及回采期间的瓦斯涌出量进行预测，分析了瓦斯涌出量的构成。基于瓦斯涌出特征，提出以高位钻孔为主，隅角埋管、尾巷、水平长钻孔进行时空配合的深井特厚煤层综放短壁工作面瓦斯综合防治技术体系，考察了瓦斯综合治理效果并总结出不同抽采方式的瓦斯抽采规律。实践表明，瓦斯综合治理技术保障了综放工作面的安全生产。
关键词：深部矿并；短壁工作面；快速回采；水平长钻孔；瓦斯治理
中图分类号：TD712
文献标志码：B
网络出版时间：2017-04-1110：11
网络出版地址：http://kns.cnki.net/kcms/detail/50.1062.TD.20170411.1011.022.html
Gas Control Technology for Fast Winning of Short-wall Coal Face of
Extra-think Seam in Deep Mine
TANG Hui'-2
(I. China Coal Technology and Engineering Group Shenyang Research Institute, Shenyang 110016, China;
2. Stale Key Laboratory of Coal Mine Safely, Farshun I13122 , China)
Abstract : To aim at the problem of gas prevention and control in the fast extraction of shortwall face of extrathick sean in the deep mine, prediction was carried out on the gas emission in the excavation and mining process of 6305 fully mechanized caving face in Tangkou Mine by taking this face as the engineering example and using the diferentsource prediction method, and the analysis was made on the composition of the gas emission. Based on the gas emission characleristics, a comprehensive technology system of gas drainage by highlevel boreholes, burying pipes at the comer angle and gas drainage by the tailgate and horizontal boreholes was put forward for the gas prevention and control in the fully mechanized shortwall caving face of the extra thick seam. The effect of the comprehensive gas prevention and control was investigated, and the gas drainage pattem of different methods was summarized. The practice showed that the comprehensive gas prevention and control technology could ensure the safe production of the fully mechanized topcoal caving face.
Keywords : deep mine ;shortwall coal face; fast winning; long horizontal borehole ; gas control
煤炭资源的高强度、集约化开采，导致我国煤矿以10~25m/a的速度快速向深部转移，矿井开采过程中面临的瓦斯、冲击地压等问题日趋严峻。深部煤炭资源开采面临着“三高一扰动"的特殊地球物理环境和应力场，采动过程中对周围煤岩体的影响范围和影响程度都较大[1-3]，且深部煤层瓦斯含量较浅部高，深井特厚煤层综放工作面开采过程中由落
收稿日期：2016-12-19;2017-02-23修订
作者简介：唐辉(1983一)，男，山东聊城人，项士，助理
研究员，从事煤矿矿并灾害防治与治理工作。万方数据
煤瓦斯涌出量、煤壁瓦斯涌出量和采空区遗煤瓦斯涌出量构成的综放工作面瓦斯涌出总量较大。而综放工作面长度缩短和快速回采，使得瓦斯涌出规律采空区漏风流场、矿压显现规律等出现一些新的变化，给瓦斯治理带来了新的难题(+-6]。基于此，笔者分析了深井特厚煤层短壁工作面快速回采条件下瓦斯治理面临的主要问题，并以唐口煤矿6305综放工作面为工程实例，对深井特厚煤层短壁工作面瓦斯防治技术进行深入研究。
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