Deformation effect of lateral roof roadway in close coal seams after repeated mining
This paper analyzed the deformation mechanism in lateral roof roadway of the Ding Wu-3 roadway which was disturbed by repeated mining of close coal seams Wu-8 and Wu-10 in Pingdingshan No. 1 Mine. To determine the strata disturbance scope, the strata displacement angle was used to calculate the prot...
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| Veröffentlicht in: | International journal of mining science and technology 2014-09, Vol.24 (5), p.597-601 |
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| container_title | International journal of mining science and technology |
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| creator | Xie, Jianlin Xu, Jialin Wang, Feng Guo, Jiekai Liu, Donglin |
| description | This paper analyzed the deformation mechanism in lateral roof roadway of the Ding Wu-3 roadway which was disturbed by repeated mining of close coal seams Wu-8 and Wu-10 in Pingdingshan No. 1 Mine. To determine the strata disturbance scope, the strata displacement angle was used to calculate the protection pillar width. A numerical model was built considering the field geological conditions. In simulation, the mining stress borderline was defined as the contour where the induced stress is 1.5 times of the original stress. Simulation results show the mining stress borderline of the lateral roadway extended 91.7 m outward after repeated mining. Then the original stress increased, deforming the road- way of interest. This deformation agreed with the in situ observations. Moreover, the strata displacement angle changed due to repeated mining. Therefore, reselection of the displacement angle was required to design the protective pillar width. Since a constant strata displacement angle was used in traditional design, the orooosed method was beneficial in field cases. |
| doi_str_mv | 10.1016/j.ijmst.2014.04.003 |
| format | Article |
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To determine the strata disturbance scope, the strata displacement angle was used to calculate the protection pillar width. A numerical model was built considering the field geological conditions. In simulation, the mining stress borderline was defined as the contour where the induced stress is 1.5 times of the original stress. Simulation results show the mining stress borderline of the lateral roadway extended 91.7 m outward after repeated mining. Then the original stress increased, deforming the road- way of interest. This deformation agreed with the in situ observations. Moreover, the strata displacement angle changed due to repeated mining. Therefore, reselection of the displacement angle was required to design the protective pillar width. Since a constant strata displacement angle was used in traditional design, the orooosed method was beneficial in field cases.</description><identifier>ISSN: 2095-2686</identifier><identifier>DOI: 10.1016/j.ijmst.2014.04.003</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Lateral roof roadway ; Mining stress borderline ; Protective pillar ; Repeated mining ; Strata displacement angle ; 传统设计 ; 位移角 ; 变形效果 ; 巷道 ; 挖掘 ; 煤层开采 ; 诱导应力 ; 车顶</subject><ispartof>International journal of mining science and technology, 2014-09, Vol.24 (5), p.597-601</ispartof><rights>2014</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c436t-8e092b09277d0c3219fb457fff63d6f7cde4c44343137a6d4aafe5805e82df4b3</citedby><cites>FETCH-LOGICAL-c436t-8e092b09277d0c3219fb457fff63d6f7cde4c44343137a6d4aafe5805e82df4b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85399B/85399B.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijmst.2014.04.003$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>Xie, Jianlin</creatorcontrib><creatorcontrib>Xu, Jialin</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><creatorcontrib>Guo, Jiekai</creatorcontrib><creatorcontrib>Liu, Donglin</creatorcontrib><title>Deformation effect of lateral roof roadway in close coal seams after repeated mining</title><title>International journal of mining science and technology</title><addtitle>Mining Science and Technology</addtitle><description>This paper analyzed the deformation mechanism in lateral roof roadway of the Ding Wu-3 roadway which was disturbed by repeated mining of close coal seams Wu-8 and Wu-10 in Pingdingshan No. 1 Mine. To determine the strata disturbance scope, the strata displacement angle was used to calculate the protection pillar width. A numerical model was built considering the field geological conditions. In simulation, the mining stress borderline was defined as the contour where the induced stress is 1.5 times of the original stress. Simulation results show the mining stress borderline of the lateral roadway extended 91.7 m outward after repeated mining. Then the original stress increased, deforming the road- way of interest. This deformation agreed with the in situ observations. Moreover, the strata displacement angle changed due to repeated mining. Therefore, reselection of the displacement angle was required to design the protective pillar width. Since a constant strata displacement angle was used in traditional design, the orooosed method was beneficial in field cases.</description><subject>Lateral roof roadway</subject><subject>Mining stress borderline</subject><subject>Protective pillar</subject><subject>Repeated mining</subject><subject>Strata displacement angle</subject><subject>传统设计</subject><subject>位移角</subject><subject>变形效果</subject><subject>巷道</subject><subject>挖掘</subject><subject>煤层开采</subject><subject>诱导应力</subject><subject>车顶</subject><issn>2095-2686</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNqFkD9PwzAQxTOARFX6CVgsVpTixI6TDAyo_JUqsZTZcuxzcEjsYgfa8ulxW8SKdZZ1uvfuyb8kucjwPMMZu-7mphvCOM9xRuc4FiYnySTHdZHmrGJnySyEDsfDKloV-SRZ3YF2fhCjcRaB1iBH5DTqxQhe9Mi72Hgn1EbskLFI9i4Aki6OAoghIKGjEHlYQ3QoNBhrbHuenGrRB5j9vtPk9eF-tXhKly-Pz4vbZSopYWNaAa7zJt6yVFiSPKt1Q4tSa82IYrqUCqiklFCSkVIwRYXQUFS4gCpXmjZkmlwd926E1cK2vHOf3sZE_t2-79R223DYk8BF5BDV5KiW3oXgQfO1N4PwO55hvqfHO36gx_cejmMdXDdHF8SPfBnwPEgDVoIyPsLiypl__Je_qW_Oth-Rzl8sYzmtCcYF-QHCVoeR</recordid><startdate>20140901</startdate><enddate>20140901</enddate><creator>Xie, Jianlin</creator><creator>Xu, Jialin</creator><creator>Wang, Feng</creator><creator>Guo, Jiekai</creator><creator>Liu, Donglin</creator><general>Elsevier B.V</general><general>State Key Laboratory of Coal Resources and Safety Mining, China University of Mining and Technology, Xuzhou 221008, China%No. 1 Coal Mine of Pingdingshan Tian’an Coal Industry C0 Ltd., Pingdingshan 467011, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20140901</creationdate><title>Deformation effect of lateral roof roadway in close coal seams after repeated mining</title><author>Xie, Jianlin ; Xu, Jialin ; Wang, Feng ; Guo, Jiekai ; Liu, Donglin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c436t-8e092b09277d0c3219fb457fff63d6f7cde4c44343137a6d4aafe5805e82df4b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Lateral roof roadway</topic><topic>Mining stress borderline</topic><topic>Protective pillar</topic><topic>Repeated mining</topic><topic>Strata displacement angle</topic><topic>传统设计</topic><topic>位移角</topic><topic>变形效果</topic><topic>巷道</topic><topic>挖掘</topic><topic>煤层开采</topic><topic>诱导应力</topic><topic>车顶</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xie, Jianlin</creatorcontrib><creatorcontrib>Xu, Jialin</creatorcontrib><creatorcontrib>Wang, Feng</creatorcontrib><creatorcontrib>Guo, Jiekai</creatorcontrib><creatorcontrib>Liu, Donglin</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-工程技术</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</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>International journal of mining science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xie, Jianlin</au><au>Xu, Jialin</au><au>Wang, Feng</au><au>Guo, Jiekai</au><au>Liu, Donglin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Deformation effect of lateral roof roadway in close coal seams after repeated mining</atitle><jtitle>International journal of mining science and technology</jtitle><addtitle>Mining Science and Technology</addtitle><date>2014-09-01</date><risdate>2014</risdate><volume>24</volume><issue>5</issue><spage>597</spage><epage>601</epage><pages>597-601</pages><issn>2095-2686</issn><abstract>This paper analyzed the deformation mechanism in lateral roof roadway of the Ding Wu-3 roadway which was disturbed by repeated mining of close coal seams Wu-8 and Wu-10 in Pingdingshan No. 1 Mine. To determine the strata disturbance scope, the strata displacement angle was used to calculate the protection pillar width. A numerical model was built considering the field geological conditions. In simulation, the mining stress borderline was defined as the contour where the induced stress is 1.5 times of the original stress. Simulation results show the mining stress borderline of the lateral roadway extended 91.7 m outward after repeated mining. Then the original stress increased, deforming the road- way of interest. This deformation agreed with the in situ observations. Moreover, the strata displacement angle changed due to repeated mining. Therefore, reselection of the displacement angle was required to design the protective pillar width. Since a constant strata displacement angle was used in traditional design, the orooosed method was beneficial in field cases.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.ijmst.2014.04.003</doi><tpages>5</tpages></addata></record> |
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| identifier | ISSN: 2095-2686 |
| ispartof | International journal of mining science and technology, 2014-09, Vol.24 (5), p.597-601 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals; Alma/SFX Local Collection |
| subjects | Lateral roof roadway Mining stress borderline Protective pillar Repeated mining Strata displacement angle 传统设计 位移角 变形效果 巷道 挖掘 煤层开采 诱导应力 车顶 |
| title | Deformation effect of lateral roof roadway in close coal seams after repeated mining |
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