Stability Analysis and Control Measures of Large-Span Open-Off Cut with Argillaceous Cemented Sandstone Layered Roof
This paper is based on the condition where layered argillaceous cemented sandstone as an engineering background is met by the No. 207 fully mechanized working face open-off cut (Wanli No. 1 Coal Mine). Through mechanical theory analysis and field practice, the engineering safety problem of the large...
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| Veröffentlicht in: | Mathematical problems in engineering 2021-06, Vol.2021, p.1-11 |
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| container_title | Mathematical problems in engineering |
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| creator | Zheng, Wenxiang Guo, Yujie Zhi, Guojun Bao, Xiankai Sun, Ming Ren, Ruiping Duan, Zhijun Gao, Zhendong |
| description | This paper is based on the condition where layered argillaceous cemented sandstone as an engineering background is met by the No. 207 fully mechanized working face open-off cut (Wanli No. 1 Coal Mine). Through mechanical theory analysis and field practice, the engineering safety problem of the large-span argillaceous cemented sandstone layered open-off cut roof supporting structure was analyzed. The roof caving arch height of the open-off cut roadway in 207 working face was obtained based on the mechanical mechanism of instability and caving of the layered surrounding rock mass roof. The anchor cable suspension and bearing stability of the open-off cut roof were analyzed in terms of the layered beam structure model. Meanwhile, combining with conditions, reasonable and effective support countermeasures and key parameters are proposed for such open-off cut roadway and enhance the actual supporting engineering on-site. These research results could provide engineering reference for an open-off cut roadway with composite roof conditions featured to weak cementation and weak interlayer. |
| doi_str_mv | 10.1155/2021/8744081 |
| format | Article |
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Through mechanical theory analysis and field practice, the engineering safety problem of the large-span argillaceous cemented sandstone layered open-off cut roof supporting structure was analyzed. The roof caving arch height of the open-off cut roadway in 207 working face was obtained based on the mechanical mechanism of instability and caving of the layered surrounding rock mass roof. The anchor cable suspension and bearing stability of the open-off cut roof were analyzed in terms of the layered beam structure model. Meanwhile, combining with conditions, reasonable and effective support countermeasures and key parameters are proposed for such open-off cut roadway and enhance the actual supporting engineering on-site. These research results could provide engineering reference for an open-off cut roadway with composite roof conditions featured to weak cementation and weak interlayer.</description><identifier>ISSN: 1024-123X</identifier><identifier>EISSN: 1563-5147</identifier><identifier>DOI: 10.1155/2021/8744081</identifier><language>eng</language><publisher>New York: Hindawi</publisher><subject>Coal ; Coal mines ; Control stability ; Equilibrium ; Interlayers ; Mining ; Roads ; Roads & highways ; Roofs ; Sandstone ; Shear strength ; Stability analysis</subject><ispartof>Mathematical problems in engineering, 2021-06, Vol.2021, p.1-11</ispartof><rights>Copyright © 2021 Wenxiang Zheng et al.</rights><rights>Copyright © 2021 Wenxiang Zheng et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c267t-856392834a477be01a0bd94ba81d174a75c2d034c38361508877606a529b12b73</citedby><cites>FETCH-LOGICAL-c267t-856392834a477be01a0bd94ba81d174a75c2d034c38361508877606a529b12b73</cites><orcidid>0000-0002-1347-7671 ; 0000-0002-3860-063X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><contributor>Wu, Qiuhong</contributor><contributor>Qiuhong Wu</contributor><creatorcontrib>Zheng, Wenxiang</creatorcontrib><creatorcontrib>Guo, Yujie</creatorcontrib><creatorcontrib>Zhi, Guojun</creatorcontrib><creatorcontrib>Bao, Xiankai</creatorcontrib><creatorcontrib>Sun, Ming</creatorcontrib><creatorcontrib>Ren, Ruiping</creatorcontrib><creatorcontrib>Duan, Zhijun</creatorcontrib><creatorcontrib>Gao, Zhendong</creatorcontrib><title>Stability Analysis and Control Measures of Large-Span Open-Off Cut with Argillaceous Cemented Sandstone Layered Roof</title><title>Mathematical problems in engineering</title><description>This paper is based on the condition where layered argillaceous cemented sandstone as an engineering background is met by the No. 207 fully mechanized working face open-off cut (Wanli No. 1 Coal Mine). Through mechanical theory analysis and field practice, the engineering safety problem of the large-span argillaceous cemented sandstone layered open-off cut roof supporting structure was analyzed. The roof caving arch height of the open-off cut roadway in 207 working face was obtained based on the mechanical mechanism of instability and caving of the layered surrounding rock mass roof. The anchor cable suspension and bearing stability of the open-off cut roof were analyzed in terms of the layered beam structure model. Meanwhile, combining with conditions, reasonable and effective support countermeasures and key parameters are proposed for such open-off cut roadway and enhance the actual supporting engineering on-site. These research results could provide engineering reference for an open-off cut roadway with composite roof conditions featured to weak cementation and weak interlayer.</description><subject>Coal</subject><subject>Coal mines</subject><subject>Control stability</subject><subject>Equilibrium</subject><subject>Interlayers</subject><subject>Mining</subject><subject>Roads</subject><subject>Roads & highways</subject><subject>Roofs</subject><subject>Sandstone</subject><subject>Shear strength</subject><subject>Stability analysis</subject><issn>1024-123X</issn><issn>1563-5147</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>RHX</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kE1LAzEQhoMoWKs3f0DAo65NsskmPZbFL6gUrIK3kN3NtinbZE2ylP33ptSzpxmGZ15mHgBuMXrEmLEZQQTPBKcUCXwGJpgVecYw5eepR4RmmOTfl-AqhB1KJMNiAuI6qsp0Jo5wYVU3BhOgsg0snY3edfBdqzB4HaBr4VL5jc7WvbJw1WubrdoWlkOEBxO3cOE3putUrd0QYKn32kbdwHXKCtFZnZZH7dPkw7n2Gly0qgv65q9Owdfz02f5mi1XL2_lYpnVpOAxE-n-ORE5VZTzSiOsUNXMaaUEbjCnirOaNCindS7yAjMkBOcFKhQj8wqTiudTcHfK7b37GXSIcucGn94MkjDKKOFIsEQ9nKjauxC8bmXvzV75UWIkj17l0av885rw-xO-NbZRB_M__QsGNXYT</recordid><startdate>20210614</startdate><enddate>20210614</enddate><creator>Zheng, Wenxiang</creator><creator>Guo, Yujie</creator><creator>Zhi, Guojun</creator><creator>Bao, Xiankai</creator><creator>Sun, Ming</creator><creator>Ren, Ruiping</creator><creator>Duan, Zhijun</creator><creator>Gao, Zhendong</creator><general>Hindawi</general><general>Hindawi Limited</general><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>DWQXO</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JQ2</scope><scope>K7-</scope><scope>KR7</scope><scope>L6V</scope><scope>M7S</scope><scope>P5Z</scope><scope>P62</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><orcidid>https://orcid.org/0000-0002-1347-7671</orcidid><orcidid>https://orcid.org/0000-0002-3860-063X</orcidid></search><sort><creationdate>20210614</creationdate><title>Stability Analysis and Control Measures of Large-Span Open-Off Cut with Argillaceous Cemented Sandstone Layered Roof</title><author>Zheng, Wenxiang ; 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Through mechanical theory analysis and field practice, the engineering safety problem of the large-span argillaceous cemented sandstone layered open-off cut roof supporting structure was analyzed. The roof caving arch height of the open-off cut roadway in 207 working face was obtained based on the mechanical mechanism of instability and caving of the layered surrounding rock mass roof. The anchor cable suspension and bearing stability of the open-off cut roof were analyzed in terms of the layered beam structure model. Meanwhile, combining with conditions, reasonable and effective support countermeasures and key parameters are proposed for such open-off cut roadway and enhance the actual supporting engineering on-site. 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| source | Wiley Online Library Open Access; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Coal Coal mines Control stability Equilibrium Interlayers Mining Roads Roads & highways Roofs Sandstone Shear strength Stability analysis |
| title | Stability Analysis and Control Measures of Large-Span Open-Off Cut with Argillaceous Cemented Sandstone Layered Roof |
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