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《Journal of Hunan University of Science & Technology(Natural Science Edition)》 2007-04
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Airflow Law of Goaf with Boundary of Delayed Caving Bolt Supporting Roadways

LI Zong-xiang1, TI Zheng-yi1, SUN Hong-feng2, SONG Wei-lin2, LIU Yao-yu2 ( 1. Vocational College, Liaoning Technical University, Fuxin 123000, China; 2. Xiaoqing Mine, Tiefa Coal Industry Group,Diaobingshan 112700, China )  
As the roof can not cave in time in bolt and anchor cable supporting extraction roadway, a goaf flow field with special air leakage boundary along goaf is formed. The finite element numerical simulation method is used, combined with the locale practice of S2-705 working face of Xiaoqing mine, Tiefa Coal Industry Group, the varied characteristics of flow law of goaf air leakage were depicted in theory, and the distributing graph of airflow intensity was given out. It was pointed out that the air leakage boundary along goaf formed without caving is the main boundary that flow into and flow out of goaf from working face, and the air leakage intensity is at the tiptop; the parallel seepage exist in caving non-compacted zone closed to the boundary of working face. The flow trend leads to the gas conglomeration in roadways along goaf at the backward position of return air side, at the same time, two solving approaches, namely dismantling bolt in advance to discharge roof and drainage by auxiliary fan, are put forward. 5figs.,5refs.
【Fund】: 国家自然科学基金项目(50574038)
【CateGory Index】: TD72
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【References】
Chinese Journal Full-text Database 1 Hits
1 Zhu Yongjian1,2,Luo Yixin3,Zhang Daobing2(1.Hunan University of Science and Technology,Xiangtan,Hunan 411201,China;2.Hunan Key Laboratory of Safe Mining Techniques of Coal Mines,Xiangtan,Hunan 411201,China;3.Hunan Financial & Economic College,Changsha 410205,China);Research on bolt-cable reducing span support technology in large span roadway of fully-mechanized coal faces[J];Engineering Sciences;2010-03
【Citations】
Chinese Journal Full-text Database 4 Hits
1 LI Zong-xiang, XIA Chun-lin, JI Chuan-ren ( Vocational College, Liaoning Technical University, Fuxin 123000, China );Information processing of arbitrary boundaries in goaf and automatic generation of finite element mesh[J];Journal of Liaoning Technical University;2004-03
2 LI Zongxiang MENG Xianchen ZHAO Guochen (Vocational College, Liaoning Technical University, Fuxin 123000, China);NUMERICAL SIMULATION OF FLOW PATTERN OF CAVING FLOW FIELD IN THE INHOMOGENEOUS GOAF WITH ARBITRARY SHAPE[J];Mechanics and Engineering;2005-06
3 LI Zongxiang MENG Xianchen JI Chuanren (Vocational College,Liaoning Technical University,Fuxin 123000,China);NON-DARCY SEEPAGE ITERATIVE ALGORITHM FOR CAVING HETEROGENEOUS FLAT FLOW FIELD[J];Mechanics in Engineering;2007-02
4 LI Zong xiang, HAI Guo zhi, QIN Shu yu(Liaoning Technical University, Fuxin 123000, China);Numerical simulation and visual display of air flow pattern in goaf[J];Journal of China Coal Society;2001-01
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LI Zong-xiang1,LIU Yu-zhou2,WU Qiang3(1.Vocational College,Liaoning Technical University,Fuxin,Liaoning 123000,P.R.China;2.Chongqing University,Chongqing 400030,P.R.China;3.School of Safety Engineering,Heilongjiang Institute of Science and Technology,Haerbin 150027,P.R.China);Improved Iterative Algorithm for Nonlinear Seepage in Flow Field of Caving Goaf[J];Journal of Chongqing University;2008-02
2 LI Zong-xiang,LI Jian-xin(1.Vocational College,Liaoning Technical University,Fuxin 123000,China);Numerical simulation of flow field pattern in the caving goaf of W type ventilation[J];Journal of Liaoning Technical University;2007-06
3 JI Chuanren1,LI Zongxiang1,LI Jianxin1(College of Vocational,Liaoning Technical University,Fuxin 123000,China);Iterative algorithm of boundary air leakage in venting laneway along goaf[J];Journal of Liaoning Technical University(Natural Science);2009-02
4 LI Zong-xiang1),JIA Jin-zhang1),ZHOU Zhi-lin2)1) College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China2) Huaxing Mine,Yingcheng Coal Group Limited Liability Company,Jiutai 130502,China;Numerical simulation of the change process of field variables distribution in goaf caused by air reversing in working faces[J];Journal of University of Science and Technology Beijing;2010-06
5 LI Zongxiang MENG Xianchen ZHAO Guochen (Vocational College, Liaoning Technical University, Fuxin 123000, China);NUMERICAL SIMULATION OF FLOW PATTERN OF CAVING FLOW FIELD IN THE INHOMOGENEOUS GOAF WITH ARBITRARY SHAPE[J];Mechanics and Engineering;2005-06
6 LI Zongxiang MENG Xianchen JI Chuanren (Vocational College,Liaoning Technical University,Fuxin 123000,China);NON-DARCY SEEPAGE ITERATIVE ALGORITHM FOR CAVING HETEROGENEOUS FLAT FLOW FIELD[J];Mechanics in Engineering;2007-02
7 LI Zongxiang~(1)) MENG Xianchen (Vocational College,Liaoning Technical University,Liaoning Fuxin 123000,China);NUMERICAL SIMULATION OF POROUS FLOW AND SPONTANEOUS COMBUSTION IN GOAF OF ADVANCING MINE U TYPE VENTILATION[J];Mechanics in Engineering;2008-04
8 ZHAO Dong1,ZHANG Xue-bo2,DENG Quan-wei2(1.Wangzhuang Coal Mine of Lu'an Environmental Energy Development Co.,Ltd.,Changzhi 046031,China;2.School of Safety Science and Engineering of Henan Polytechnic University,Jiaozuo 454003,China);Research of 6206 Fully Mechanized Caving Face Goaf Gas Flow Field and Concentration Distribution Rule of Wangzhuang Coal Mine[J];Coal;2009-07
9 LI Zong xiang(Liaoning Technical University,Fuxin 123000,China);Study on numerical simulation of gas eission regularity and boundary condition of the goaf in coal caving of the fully-mechanized[J];Journal of China Coal Society;2002-02
10 LI Zong-xiang~1,WU Qiang~2,WANG Zhi-qing~3(1.College of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China;2.Department of Safety Engineering and Technology,Heilongjiang Institute of Science and Technology,Harbin 150027,China;3.Changcun Coal Mine,Lu'an Environment and Energy Corporation Ltd.,Changzhi 046032,China);Distribution characteristic of remaining coal oxygen consumption and spontaneous combustion heating-up in goaf[J];Journal of China Coal Society;2009-05
【Co-references】
Chinese Journal Full-text Database 5 Hits
1 WANG Jin-xue,WANG Jia-chen,CHEN Zhong-hui(School of Resource and Safety Engineering,China University of Mining & Technology,Beijing 100083,China);Movement Rule of Shallowly-Buried Thick Coal Seams with Hard Top Coal and Roof[J];Journal of Mining & Safety Engineering;2006-02
2 WANG Jin-hua~(1,2)(1.China University of Mining and Technology(Beijing),Beijing 100083,China;2.China Coal Research Institute,Beijing 100013,China);New development of rock bolting technology for coal roadway in China[J];Journal of China Coal Society;2007-02
3 LIU Li-ming1, YANG Lei2 (1. Niumasi Mining Corparation Ltd, Shaodong 422800,China; 2. Hunan University of Science and Technology, Center for Green Mine Technology Reaearch, Xiangtan 411201, China);Experimental Study on the Technology of Floor Heave Control in Incompact and Fractured Soft-Rock Roadway[J];Journal of Hunan University of Science & Technology(Natural Science Edition);2007-02
4 YANG Jianhui1,2,SHANG Yuequan1(1.College of Civil Engineering and Architecture,Zhejiang University,Hangzhou,Zhejiang 310027,China;2.School of Civil Engineering and Architecture,Zhejiang University of Science and Technology,Hangzhou,Zhejiang 310023,China);EXPERIMENTAL STUDY ON COMPLETE MECHANICAL CHARACTERISTICS OF VOUSSOIR BEAM IN STRATIFIED ROCK[J];Chinese Journal of Rock Mechanics and Engineering;2007-S1
5 XU Jia-lin,QIAN Ming-gao,JIN Hong-wei (Department of Mining Engineering , China University of Mining and Technology, Xuzhou 221008, China);Study and application of bed separation distribution and development in the process of strata movement[J];Chinese Jounal of Geotechnical Engineering;2004-05
【Secondary Citations】
Chinese Journal Full-text Database 7 Hits
1 LI Zong-xiang, XIA Chun-lin, JI Chuan-ren ( Vocational College, Liaoning Technical University, Fuxin 123000, China );Information processing of arbitrary boundaries in goaf and automatic generation of finite element mesh[J];Journal of Liaoning Technical University;2004-03
2 LIU Chun\|tai, YANG Xiao\|dong, SHEN Chang\|yu, CHEN Jing\|bo (NERC of Mold & Die, Zhengzhou University of Technology, Zhengzhou 450002,China);Automatic generation of gradation finite elementmesh for arbitrary planar domains[J];CHINESE JOURNAL OF COMPUTATIONAL MECHANICS;2000-01
3 LI Zongxiang (Vocational College, Liaoning Technical University, Fuxin 123000, China);NUMERICAL SIMULATION OF TEMPERATURE FIELD WITH SPONTANEOUS COMBUSTION IN OPEN REGION NITROGEN INJECTION GOAF[J];Mechanics and Engineering;2005-04
4 LI Zongxiang MENG Xianchen ZHAO Guochen (Vocational College, Liaoning Technical University, Fuxin 123000, China);NUMERICAL SIMULATION OF FLOW PATTERN OF CAVING FLOW FIELD IN THE INHOMOGENEOUS GOAF WITH ARBITRARY SHAPE[J];Mechanics and Engineering;2005-06
5 LI Zong xiang 1,QIN Shu yu 2,LU Da ying 1(1 FuXin Industrial School, Fuxin 123000,China;2 Liaoning Technical University, Fuxin 123000, China);Numerical simulation study of fully mechanized caving coal face in the goaf spontaneous combustion[J];JOURNAL OF CHINA COAL SOCIETY;1999-05
6 LI Zong xiang, HAI Guo zhi, QIN Shu yu(Liaoning Technical University, Fuxin 123000, China);Numerical simulation and visual display of air flow pattern in goaf[J];Journal of China Coal Society;2001-01
7 Di Zhiqian Ding Guangxiang Zhue Shuxun ( Department of Coal Mining Engineering ) Liu Runshen Zhao Changchun ( Yangquan Coal Mine Administration );The Theoretical Calculation and Observation Analysis of the "three Zones "in the Goaf of Fully Mechanized Face with Top Coal Drawing[J];Journal of China University of Mining & Technology;1993-01
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