第44卷第2期 2017年4月
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
Vol. 44 No. 2 Apr.2017
常海雷，刘虑青，张滚，等.“U+I"型通风形式下综效工作面采空区遗煤及支渠上方煤壁瓦斯效傲与运移规律研究[J].矿业安全与环保,2017,44(2);3944
文章编号：10084495(2017)02003906
“U+I”型通风形式下综放工作面采空区遗煤及
支架上方煤壁瓦斯放散与运移规律研究
常海雷，刘彦青23，张浪23，汪东2.3，张书林2,3，李伟2,3
（1.山西天地王坡煤业有限公司，山西鲁成048000；2.煤炭科学技术研究院有限公司安全分院，北京100013：
3.煤发资源高效开采与洁净利用国家重点实验室（煤炭科学研究总院），北京100013）
摘要：为了揭示“U+I"型通风形式下综放工作面采空区遗煤及支架上方煤壁瓦斯放散与运移规律，以王坡煤矿3205综放工作面为现场背景，建立了采空区遗煤瓦斯放散与运移稳态计算模型、采空区支架上方煤壁瓦斯放散与运移非稳态计算模型。定量分析了工作面推进速度、采空区遗煤厚度和工作面配风量3个因素对由采空区遗煤瓦斯效散形成的瓦斯浓度场分布的影响，定量分析了移架放顶煤方向对由采空区支渠上方煤壁瓦斯放散形成的采场巷道及采空区瓦斯浓度场分布的影响，研究结果对现场工作面瓦斯超限预测其有重要的指导意义。
关键词：综放工作面；工作面推进速度；进风巷；风速；采空区；遗煤厚度；移动坐标
中图分类号：TD712
文献标志码：A
网络出版时间：2017-04-1110：12
网络出版地址：http：//kns.cnki.net/kcms/detail/50.1062.TD.20170411.1012.038.html
Study on Gas Emission and Migration Law of Residual Coal in Gob and Coal Wall above
Support in Fully Mechanized Caving Face with U+I-shape Ventilation System CHANG Hailei', LIU Yanqing,ZHANG Lang, WANG Dong-, ZHANG Shulin2-, LI Wei?.
( I. Shanxi Tiandi Wangpo Coal Mining Go. , Lid. , Jincheng 048000, Chind;
2. Mine Sofety Technology Branch of China Goal Research Institule, Bejing J00013, China;
3. Stale Key Laboralory of Coal Efficient Mining and Clean Utilization( China Coal Research Institude) , Beijing J00013, Chine) Abstract : In order to reveal the gas emission and mignation laws of residual coal in the gob and coal wall above the support in the fully mechanized caving face with U+Ishape ventilation system, No. 3205 fully mechanized caving face of Wangpo Coal Mine was taken as the site background, the steady computing model of gas emission and migration of residual coal in the gob and the unsteady computing model of gas emission and migration of the coal wall above the support were set up. Quantitative analysis was carried out on the influence of the face advancing speed, the thickness of the residual coal in the gob and the distributed air volume in the face on the gas concentration field distribution formed by the gas emission of residual coal in the gob, and quantitative analysis was also carried out on the influence of the moving direction of support and topcoal caving direetion on the gasconcentration field distribution in the gob and roadway formed by the gas emission of the coal wall above the support. The results have important guiding significance for gas overrun prediction in the coal face.
收稿日期：2016-09-05;2017-02-16修订
基金项目：国家自然科学基金项目（51504137， 51604153）；北京市自然科学基金项目（2164075）
作者简介：常海雷（1968一），男，山西晋城人，硕颈士研究生，高级工程师，现任山西天地王坡煤业有限公司总经理，主要从事煤矿瓦斯治理及安全管理方面的研究工作。
通讯作者：刘彦青（1989一），男，山西忻州人，助理工程师，主要从事矿并通风系统优化、瓦斯灾害综合治理的研筑工
作。 Email; lyqing0906@ 163. com 万方数据
Keywords : fully mechanized caving face; advancing speed of coal face; intake ainray; air speed; gpb; thickness of residual coal; moving coordinate
综放工作面涌出的瓦斯主要来源于综放工作面煤壁瓦斯涌出及综采落煤瓦斯涌出、采空区遗煤瓦斯涌出、采空区支架上方煤壁瓦斯涌出、采空区放项落煤瓦斯涌出、上下邻近层瓦斯涌出。笔者基于分源预测分析的思路，重点研究采空区遗煤瓦斯
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