Research on evolution of mining pressure field and fracture field and gas emission features
The relation between mining pressure field-fracture field and gas emission of working face is analyzed, and the concept that there is a stress point （or strain point） among permeability of coal is presented. It is believed that the mutation of coal permeability caused by the sudden loading or unload...
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| Veröffentlicht in: | 中国工程科学：英文版 2012, Vol.10 (2), p.49-55 |
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| container_title | 中国工程科学：英文版 |
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| creator | Li Huamin Xiong Zuqiang Li Dongyin Yuan Ruifu Wang Wen |
| description | The relation between mining pressure field-fracture field and gas emission of working face is analyzed, and the concept that there is a stress point （or strain point） among permeability of coal is presented. It is believed that the mutation of coal permeability caused by the sudden loading or unloading of working face roof as periodic weighting occurs is the main reason that a lot of gas pour into the working face. Based on the above concept, the relation is established among abutment pressure during periodie weighting, permeability of coal seam and gas emission, and relation graph is drawn. Then the loading and unloading features of coal at the moment of fracture and non-fracture of main roof are revealed. And finally it is presented that the process of sudden loading or unloading as periodic weighting occurs plays an important role in rupture propagation of coal, analytical movement of gas and gas emission. |
| doi_str_mv | 10.3969/j.issn.1672-4178.2012.02.006 |
| format | Article |
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It is believed that the mutation of coal permeability caused by the sudden loading or unloading of working face roof as periodic weighting occurs is the main reason that a lot of gas pour into the working face. Based on the above concept, the relation is established among abutment pressure during periodie weighting, permeability of coal seam and gas emission, and relation graph is drawn. Then the loading and unloading features of coal at the moment of fracture and non-fracture of main roof are revealed. And finally it is presented that the process of sudden loading or unloading as periodic weighting occurs plays an important role in rupture propagation of coal, analytical movement of gas and gas emission.</description><identifier>ISSN: 1672-4178</identifier><identifier>DOI: 10.3969/j.issn.1672-4178.2012.02.006</identifier><language>chi ; eng</language><publisher>School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China</publisher><subject>压力场 ; 工作面顶板 ; 支承压力 ; 气体排放 ; 演变 ; 瓦斯涌出量 ; 矿山 ; 裂隙</subject><ispartof>中国工程科学：英文版, 2012, Vol.10 (2), p.49-55</ispartof><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/87553A/87553A.jpg</thumbnail><link.rule.ids>314,776,780,4010,27900,27901,27902</link.rule.ids></links><search><creatorcontrib>Li Huamin Xiong Zuqiang Li Dongyin Yuan Ruifu Wang Wen</creatorcontrib><title>Research on evolution of mining pressure field and fracture field and gas emission features</title><title>中国工程科学：英文版</title><addtitle>Engineering Sciences</addtitle><description>The relation between mining pressure field-fracture field and gas emission of working face is analyzed, and the concept that there is a stress point （or strain point） among permeability of coal is presented. It is believed that the mutation of coal permeability caused by the sudden loading or unloading of working face roof as periodic weighting occurs is the main reason that a lot of gas pour into the working face. Based on the above concept, the relation is established among abutment pressure during periodie weighting, permeability of coal seam and gas emission, and relation graph is drawn. Then the loading and unloading features of coal at the moment of fracture and non-fracture of main roof are revealed. And finally it is presented that the process of sudden loading or unloading as periodic weighting occurs plays an important role in rupture propagation of coal, analytical movement of gas and gas emission.</description><subject>压力场</subject><subject>工作面顶板</subject><subject>支承压力</subject><subject>气体排放</subject><subject>演变</subject><subject>瓦斯涌出量</subject><subject>矿山</subject><subject>裂隙</subject><issn>1672-4178</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNpVUE1rwzAM9WGDla7_wYNddkgmO4ljH0fZFxQGo7cdguLKabrW6ex2X79-Lh2DgUDi6Ul6eoxdCsgLo8z1Ku9j9LlQtcxKUetcgpA5pAB1wkZ_-BmbxLgCAFHIylRqxF6eKRIGu-SD5_Q-rPe7PlWD45ve977j20Ax7gNx19N6wdEvuAtod_-hDiOnTRJxGHaEh3Y8Z6cO15Emv3nM5ne38-lDNnu6f5zezDKrQGWlhtZKV7Zo2ioJrYkqWWhwYIxGsrIqaymcaOtWVxq00LAAskYDmgJVXYzZ1XHtB3qHvmtWwz74dLD57jr7-tnQwQ2QyYvEvThy7XLw3Vt6sNmGfoPhqymlNFKbsvgBMRtj6A</recordid><startdate>2012</startdate><enddate>2012</enddate><creator>Li Huamin Xiong Zuqiang Li Dongyin Yuan Ruifu Wang Wen</creator><general>School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>2012</creationdate><title>Research on evolution of mining pressure field and fracture field and gas emission features</title><author>Li Huamin Xiong Zuqiang Li Dongyin Yuan Ruifu Wang Wen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c606-480bc2f4ba9b56727ee52380f0998aec254721f1b7b85808180d0ec980a93a673</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>chi ; eng</language><creationdate>2012</creationdate><topic>压力场</topic><topic>工作面顶板</topic><topic>支承压力</topic><topic>气体排放</topic><topic>演变</topic><topic>瓦斯涌出量</topic><topic>矿山</topic><topic>裂隙</topic><toplevel>online_resources</toplevel><creatorcontrib>Li Huamin Xiong Zuqiang Li Dongyin Yuan Ruifu Wang Wen</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>中国工程科学：英文版</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li Huamin Xiong Zuqiang Li Dongyin Yuan Ruifu Wang Wen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Research on evolution of mining pressure field and fracture field and gas emission features</atitle><jtitle>中国工程科学：英文版</jtitle><addtitle>Engineering Sciences</addtitle><date>2012</date><risdate>2012</risdate><volume>10</volume><issue>2</issue><spage>49</spage><epage>55</epage><pages>49-55</pages><issn>1672-4178</issn><abstract>The relation between mining pressure field-fracture field and gas emission of working face is analyzed, and the concept that there is a stress point （or strain point） among permeability of coal is presented. It is believed that the mutation of coal permeability caused by the sudden loading or unloading of working face roof as periodic weighting occurs is the main reason that a lot of gas pour into the working face. Based on the above concept, the relation is established among abutment pressure during periodie weighting, permeability of coal seam and gas emission, and relation graph is drawn. Then the loading and unloading features of coal at the moment of fracture and non-fracture of main roof are revealed. And finally it is presented that the process of sudden loading or unloading as periodic weighting occurs plays an important role in rupture propagation of coal, analytical movement of gas and gas emission.</abstract><pub>School of Energy Science and Engineering, Henan Polytechnic University, Jiaozuo, Henan 454000, China</pub><doi>10.3969/j.issn.1672-4178.2012.02.006</doi><tpages>7</tpages></addata></record> |
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| ispartof | 中国工程科学：英文版, 2012, Vol.10 (2), p.49-55 |
| issn | 1672-4178 |
| language | chi ; eng |
| recordid | cdi_wanfang_journals_zggckx_e201202006 |
| source | Alma/SFX Local Collection |
| subjects | 压力场 工作面顶板 支承压力 气体排放 演变 瓦斯涌出量 矿山 裂隙 |
| title | Research on evolution of mining pressure field and fracture field and gas emission features |
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