第45卷
第2期 2018年4月
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
Vol. 45 No. 2 Apr.2018
郭阳阳，孙路路，王鹏飞，等.真三轴实验下渠宝寺煤矿据进工作面煤体应力一渗流关系研究及应用[J].矿业安全与环保，2018， 45(2) ;15
文章编号：10084495(2018)02000105 试验研究
真三轴实验下梁宝寺煤矿掘进工作面煤体
应力一渗流关系研究及应用郭阳阳,2，孙路路",2,3，王鹏飞12，冯如训（1.山东科技大学矿业与安全工程学院，山东青岛266590
2.矿业工程国家级实验教学示范中心（山东科技大学），山东青岛266590；
3.山东科技大学矿山灾害预防控制省部共建国家重点实验宝培育基地，山东骨岛266590）
摘要：针对梁宝寺煤矿3434掘进工作面作业期间瓦斯浓度较高的实际间题，以瓦斯防治为研究目的。运用自行研制的真三轴气一固耦合煤体渗流实验系统，根据掘进工作面周围煤体应力分布情况，开展了卸载围压和加载轴压实验，研究各应力分区煤体渗透率演化规律，分析瓦斯赋存情况。研究结果表明：卸压区渗透率增大，适宜瓦斯逸散；应力增高区渗透率下降，瓦斯难以逸散。根据实验结果和应力分区特点设计出瓦斯治理方案，并进行工程实践。实践结果显示：采用超前钻孔抽采煤层瓦斯后，掘进工作面瓦斯浓度由0.53%~0.76%降至0.35%以下，证明应力一渗流关系研究结果正确。
关键词：深部矿并；掘进工作面；真三轴实验；采动应力；瓦斯治理
中图分类号：TD712*.6;TD713
文献标志码：A
Research and Application of Stress-Seepage Relationship of Coal in Heading
Face of Liangbaosi Coal MineunderTrueTriaxial Test GUO Yangyang/-2, SUN Lulu/.23, WANG Pengfei'2, FENG Ruxun
(I. College of Mining and Sofety Engineering , Shandong Unizersity of Science and Technology, Qingdao 266590, China ; 2. Demonstration Cenler for Experimental Mining Engineering Education( Shandong U/nirersity of Science and Technology) , Qingdao 266590, China; 3., Stale Key Laboralory of Mine Disaster Prerention and Gontrol of the Ministry of Education,
Shandong Unieersity of Science and Technology, Qingdao 266590, China)
Abstract: In this paper, aiming at the actual problem of high gas concentration during the operation of 3434 heading face of Lianghaosi Coal Mine, with the purpose of gas prevention and control,based on the selfdeveloped test system of true triaxial gas solid coupling coal seepage flow, the experiment of unloading confining pressure and axial compression was carried out based on the stress distribution of coal surrounding the heading face,the evolution of permeability in each stress zone was studied, the gas storage was analyzed. The experimental results showed that it is suitable for methane emission when the permeability of pressure relief zone increases, and the gas is difficult to escape when and the permeability is decreased in the stress zone, The gas treatment
scheme was designed according to the experimental results
收稿日期：2017-05-09;2017-11-21修订
基金项目：国家自然科学基金项目（51304128， 51674158)
作者简介：郭阳阳（1993一），男，河北邢台人，硕士研究生，主要从事矿并灾害预测及防治方面的研究工作。E-mail： doubleYGuo163.com
通讯作者：孙路路（1987一），男，山东济宁人，博士，主要从事矿井灾害预测与防治方面的研究工作。E-mail;sunsdust@
126.com 万方数据
and the characteristics of stress zone, and the engineering practice was carried out. Practice showed that the range of gas concentration was from 0. 53% to 0. 76% , and after the gas of coal seam extracled with advanced drilling, the gas concentration decreased to lower than 0. 35% , it proved the correctness of the stressseepage relationship research.
Keywords: deep mine; heading face; true triaxial tesl; mining stress ; gas control
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