The J2 evolution model and control technology of the main roadway surrounding rock under superimposed influence of double-coal seam mining
Under double-seam mining, the main roadway surrounding rock is affected by the superposition of the advanced stress of the two-seam coal working faces. The stress superposition mode and degree are of great significance to the width calculation of the protective coal pillar and the determination of t...
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| Veröffentlicht in: | Scientific reports 2023-10, Vol.13 (1), p.17569-17569, Article 17569 |
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| creator | Chen, Dongdong Li, Zijian Xie, Shengrong Wang, Zhiqiang Jiang, Zaisheng Jia, Qingbo Wang, Yiyang |
| description | Under double-seam mining, the main roadway surrounding rock is affected by the superposition of the advanced stress of the two-seam coal working faces. The stress superposition mode and degree are of great significance to the width calculation of the protective coal pillar and the determination of the critical control direction of the surrounding rock. This paper uses theoretical analysis, numerical simulation, and site engineering practice to carry out targeted research. The conclusions are as follows: Under different lateral pressure coefficients, the superposition evolution law of maximum principal stress direction of two coal seams with different offsets; Two developmental trends and three types of evolution models of
J
2
peak zone (the critical area of the stress increase and deflection changes) under different superimposed loading modes are summarized. Based on the typical asymmetric evolution model of the
J
2
peak zone, an asymmetric truss-cable co-anchoring method is proposed aimed at the
J
2
critical zone. The field monitoring results show that the main roadway surrounding rock is stable after support when the upper coal seam protective coal pillar is left 80 m, and the lower one is 60 m wide. It is of great reference importance for similar engineering practices. |
| doi_str_mv | 10.1038/s41598-023-44136-0 |
| format | Article |
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J
2
peak zone (the critical area of the stress increase and deflection changes) under different superimposed loading modes are summarized. Based on the typical asymmetric evolution model of the
J
2
peak zone, an asymmetric truss-cable co-anchoring method is proposed aimed at the
J
2
critical zone. The field monitoring results show that the main roadway surrounding rock is stable after support when the upper coal seam protective coal pillar is left 80 m, and the lower one is 60 m wide. It is of great reference importance for similar engineering practices.</description><identifier>ISSN: 2045-2322</identifier><identifier>EISSN: 2045-2322</identifier><identifier>DOI: 10.1038/s41598-023-44136-0</identifier><identifier>PMID: 37845227</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>639/4077/4082/4059 ; 704/2151/330 ; Coal ; Coal mining ; Evolution ; Humanities and Social Sciences ; Mathematical models ; multidisciplinary ; Rocks ; Science ; Science (multidisciplinary) ; Theoretical analysis</subject><ispartof>Scientific reports, 2023-10, Vol.13 (1), p.17569-17569, Article 17569</ispartof><rights>The Author(s) 2023</rights><rights>The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>Springer Nature Limited 2023</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c333t-7b2c6929bec3125b4a833298966eb60594fe8aea9b83a01c13f2c0394da2a4aa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10579408/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10579408/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,315,728,781,785,865,886,27928,27929,41124,42193,51580,53795,53797</link.rule.ids></links><search><creatorcontrib>Chen, Dongdong</creatorcontrib><creatorcontrib>Li, Zijian</creatorcontrib><creatorcontrib>Xie, Shengrong</creatorcontrib><creatorcontrib>Wang, Zhiqiang</creatorcontrib><creatorcontrib>Jiang, Zaisheng</creatorcontrib><creatorcontrib>Jia, Qingbo</creatorcontrib><creatorcontrib>Wang, Yiyang</creatorcontrib><title>The J2 evolution model and control technology of the main roadway surrounding rock under superimposed influence of double-coal seam mining</title><title>Scientific reports</title><addtitle>Sci Rep</addtitle><description>Under double-seam mining, the main roadway surrounding rock is affected by the superposition of the advanced stress of the two-seam coal working faces. The stress superposition mode and degree are of great significance to the width calculation of the protective coal pillar and the determination of the critical control direction of the surrounding rock. This paper uses theoretical analysis, numerical simulation, and site engineering practice to carry out targeted research. The conclusions are as follows: Under different lateral pressure coefficients, the superposition evolution law of maximum principal stress direction of two coal seams with different offsets; Two developmental trends and three types of evolution models of
J
2
peak zone (the critical area of the stress increase and deflection changes) under different superimposed loading modes are summarized. Based on the typical asymmetric evolution model of the
J
2
peak zone, an asymmetric truss-cable co-anchoring method is proposed aimed at the
J
2
critical zone. The field monitoring results show that the main roadway surrounding rock is stable after support when the upper coal seam protective coal pillar is left 80 m, and the lower one is 60 m wide. It is of great reference importance for similar engineering practices.</description><subject>639/4077/4082/4059</subject><subject>704/2151/330</subject><subject>Coal</subject><subject>Coal mining</subject><subject>Evolution</subject><subject>Humanities and Social Sciences</subject><subject>Mathematical models</subject><subject>multidisciplinary</subject><subject>Rocks</subject><subject>Science</subject><subject>Science (multidisciplinary)</subject><subject>Theoretical analysis</subject><issn>2045-2322</issn><issn>2045-2322</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kc1u1TAQhSNERavSF2BliQ2bgP-S2CuEKiigSmzatTVxJvemOJ6LnRTdV-hT48ut-FvgjUcz3zma0amqF4K_FlyZN1mLxpqaS1VrLVRb8yfVmeS6qaWS8ukf9Wl1kfMdL6-RVgv7rDpVndGNlN1Z9XCzRfZZMrynsC4TRTbTgIFBHJinuCQKbEG_jRRos2c0sqUIZpgiSwTDd9izvKZEaxymuCk9_5WVGlNp7zBN844yDmyKY1gxejw4DLT2AWtPEFhGmNk8xSJ-Xp2MEDJePP7n1e2H9zeXH-vrL1efLt9d114ptdRdL31rpe3RKyGbXoNRSlpj2xb7ljdWj2gAwfZGARdeqFF6rqweQIIGUOfV26Pvbu1nHDyWKyG4XVkW0t4RTO7vSZy2bkP3TvCms5qb4vDq0SHRtxXz4uYpewwBItKanTSdkVaorivoy3_QO1pTLPcdqK6x0oimUPJI-UQ5Jxx_bSO4O8TtjnG7Erf7GbfjRaSOolzguMH02_o_qh8Ssa6J</recordid><startdate>20231016</startdate><enddate>20231016</enddate><creator>Chen, Dongdong</creator><creator>Li, Zijian</creator><creator>Xie, Shengrong</creator><creator>Wang, Zhiqiang</creator><creator>Jiang, Zaisheng</creator><creator>Jia, Qingbo</creator><creator>Wang, Yiyang</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>88I</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M2P</scope><scope>M7P</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>20231016</creationdate><title>The J2 evolution model and control technology of the main roadway surrounding rock under superimposed influence of double-coal seam mining</title><author>Chen, Dongdong ; Li, Zijian ; Xie, Shengrong ; Wang, Zhiqiang ; Jiang, Zaisheng ; Jia, Qingbo ; Wang, Yiyang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c333t-7b2c6929bec3125b4a833298966eb60594fe8aea9b83a01c13f2c0394da2a4aa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>639/4077/4082/4059</topic><topic>704/2151/330</topic><topic>Coal</topic><topic>Coal mining</topic><topic>Evolution</topic><topic>Humanities and Social Sciences</topic><topic>Mathematical models</topic><topic>multidisciplinary</topic><topic>Rocks</topic><topic>Science</topic><topic>Science (multidisciplinary)</topic><topic>Theoretical analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Dongdong</creatorcontrib><creatorcontrib>Li, Zijian</creatorcontrib><creatorcontrib>Xie, Shengrong</creatorcontrib><creatorcontrib>Wang, Zhiqiang</creatorcontrib><creatorcontrib>Jiang, Zaisheng</creatorcontrib><creatorcontrib>Jia, Qingbo</creatorcontrib><creatorcontrib>Wang, Yiyang</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Health & Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health & Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Science Database</collection><collection>Biological Science Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Scientific reports</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Dongdong</au><au>Li, Zijian</au><au>Xie, Shengrong</au><au>Wang, Zhiqiang</au><au>Jiang, Zaisheng</au><au>Jia, Qingbo</au><au>Wang, Yiyang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The J2 evolution model and control technology of the main roadway surrounding rock under superimposed influence of double-coal seam mining</atitle><jtitle>Scientific reports</jtitle><stitle>Sci Rep</stitle><date>2023-10-16</date><risdate>2023</risdate><volume>13</volume><issue>1</issue><spage>17569</spage><epage>17569</epage><pages>17569-17569</pages><artnum>17569</artnum><issn>2045-2322</issn><eissn>2045-2322</eissn><abstract>Under double-seam mining, the main roadway surrounding rock is affected by the superposition of the advanced stress of the two-seam coal working faces. The stress superposition mode and degree are of great significance to the width calculation of the protective coal pillar and the determination of the critical control direction of the surrounding rock. This paper uses theoretical analysis, numerical simulation, and site engineering practice to carry out targeted research. The conclusions are as follows: Under different lateral pressure coefficients, the superposition evolution law of maximum principal stress direction of two coal seams with different offsets; Two developmental trends and three types of evolution models of
J
2
peak zone (the critical area of the stress increase and deflection changes) under different superimposed loading modes are summarized. Based on the typical asymmetric evolution model of the
J
2
peak zone, an asymmetric truss-cable co-anchoring method is proposed aimed at the
J
2
critical zone. The field monitoring results show that the main roadway surrounding rock is stable after support when the upper coal seam protective coal pillar is left 80 m, and the lower one is 60 m wide. It is of great reference importance for similar engineering practices.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>37845227</pmid><doi>10.1038/s41598-023-44136-0</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | 639/4077/4082/4059 704/2151/330 Coal Coal mining Evolution Humanities and Social Sciences Mathematical models multidisciplinary Rocks Science Science (multidisciplinary) Theoretical analysis |
| title | The J2 evolution model and control technology of the main roadway surrounding rock under superimposed influence of double-coal seam mining |
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