An anchorage experimental study on supporting a roadway in steeply inclined geological formations
The support of rock bolt plays a significant role in maintaining the stability of a roadway in steeply inclined geological formations, yet choosing a reasonable support scheme of rock bolt in this situation is still not well understood. To reveal the force or stress distribution mechanism of anchor...
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| Veröffentlicht in: | Tunnelling and underground space technology 2018-12, Vol.82, p.125-134 |
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| container_title | Tunnelling and underground space technology |
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| creator | Wu, Guojun Jia, Shanpo Chen, Weizhong Yuan, Jingqiang Yu, Hongdan Zhao, Wusheng |
| description | The support of rock bolt plays a significant role in maintaining the stability of a roadway in steeply inclined geological formations, yet choosing a reasonable support scheme of rock bolt in this situation is still not well understood. To reveal the force or stress distribution mechanism of anchor bolts and design an effective support scheme, an in situ anchorage experiment was conducted in a deep-buried roadway in steeply inclined rock strata. This results of this study demonstrate that in the steeply inclined rock formations, the intersection angle of a bolt length direction and the interface of rock layers have a great effect on the distribution and variation of axial force in bolts. The axial forces at the positions near the intersection of the interface and bolt increase a lot with time. In addition, the existence of no small or non-zero axial force at the end of anchor bolts indicates that much longer bolts should be used to prevent further deformation in steeply inclined rock. |
| doi_str_mv | 10.1016/j.tust.2018.08.007 |
| format | Article |
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To reveal the force or stress distribution mechanism of anchor bolts and design an effective support scheme, an in situ anchorage experiment was conducted in a deep-buried roadway in steeply inclined rock strata. This results of this study demonstrate that in the steeply inclined rock formations, the intersection angle of a bolt length direction and the interface of rock layers have a great effect on the distribution and variation of axial force in bolts. The axial forces at the positions near the intersection of the interface and bolt increase a lot with time. In addition, the existence of no small or non-zero axial force at the end of anchor bolts indicates that much longer bolts should be used to prevent further deformation in steeply inclined rock.</description><identifier>ISSN: 0886-7798</identifier><identifier>EISSN: 1878-4364</identifier><identifier>DOI: 10.1016/j.tust.2018.08.007</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Anchor bolt ; Anchor bolts ; Automatic ; Axial forces ; Bolts ; Deformation mechanisms ; Experiment ; Experiments ; Force distribution ; Formations ; Geology ; Roads ; Roads & highways ; Roadway ; Rocks ; Steeply inclined ; Stress concentration ; Stress distribution</subject><ispartof>Tunnelling and underground space technology, 2018-12, Vol.82, p.125-134</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright Elsevier BV Dec 2018</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a351t-48f70503140c29e34d8666223dfef19b2fe061c2f467bb7c9307f3fbb45f16b63</citedby><cites>FETCH-LOGICAL-a351t-48f70503140c29e34d8666223dfef19b2fe061c2f467bb7c9307f3fbb45f16b63</cites><orcidid>0000-0002-4192-9735</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.tust.2018.08.007$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27923,27924,45994</link.rule.ids></links><search><creatorcontrib>Wu, Guojun</creatorcontrib><creatorcontrib>Jia, Shanpo</creatorcontrib><creatorcontrib>Chen, Weizhong</creatorcontrib><creatorcontrib>Yuan, Jingqiang</creatorcontrib><creatorcontrib>Yu, Hongdan</creatorcontrib><creatorcontrib>Zhao, Wusheng</creatorcontrib><title>An anchorage experimental study on supporting a roadway in steeply inclined geological formations</title><title>Tunnelling and underground space technology</title><description>The support of rock bolt plays a significant role in maintaining the stability of a roadway in steeply inclined geological formations, yet choosing a reasonable support scheme of rock bolt in this situation is still not well understood. To reveal the force or stress distribution mechanism of anchor bolts and design an effective support scheme, an in situ anchorage experiment was conducted in a deep-buried roadway in steeply inclined rock strata. This results of this study demonstrate that in the steeply inclined rock formations, the intersection angle of a bolt length direction and the interface of rock layers have a great effect on the distribution and variation of axial force in bolts. The axial forces at the positions near the intersection of the interface and bolt increase a lot with time. In addition, the existence of no small or non-zero axial force at the end of anchor bolts indicates that much longer bolts should be used to prevent further deformation in steeply inclined rock.</description><subject>Anchor bolt</subject><subject>Anchor bolts</subject><subject>Automatic</subject><subject>Axial forces</subject><subject>Bolts</subject><subject>Deformation mechanisms</subject><subject>Experiment</subject><subject>Experiments</subject><subject>Force distribution</subject><subject>Formations</subject><subject>Geology</subject><subject>Roads</subject><subject>Roads & highways</subject><subject>Roadway</subject><subject>Rocks</subject><subject>Steeply inclined</subject><subject>Stress concentration</subject><subject>Stress distribution</subject><issn>0886-7798</issn><issn>1878-4364</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kE1r3DAQhkVpodu0f6AnQc_ejD4s2ZBLCG0SCOTSnoUsj7ZaHMmR5Lb776tley4MzDC8z3y8hHxmsGfA1PVxX7dS9xzYsIcWoN-QHRv00Emh5Fuyg2FQndbj8J58KOUIAD3n447Y20htdD9Ttgek-GfFHF4wVrvQUrf5RFOkZVvXlGuIB2ppTnb-bU80tH5FXJdz6ZYQcaYHTEs6BNdgn_KLrSHF8pG883Yp-OlfviI_vn39fvfQPT3fP97dPnVW9Kx2cvAaehBMguMjCjkPSinOxezRs3HiHkExx71Uepq0GwVoL_w0yd4zNSlxRb5c5q45vW5YqjmmLce20nAmtOwlB9FU_KJyOZWS0Zu1PWzzyTAwZyvN0ZytNGcrDbQA3aCbC4Tt_l8BsykuYHQ4h4yumjmF_-F_AWvTfpQ</recordid><startdate>201812</startdate><enddate>201812</enddate><creator>Wu, Guojun</creator><creator>Jia, Shanpo</creator><creator>Chen, Weizhong</creator><creator>Yuan, Jingqiang</creator><creator>Yu, Hongdan</creator><creator>Zhao, Wusheng</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-4192-9735</orcidid></search><sort><creationdate>201812</creationdate><title>An anchorage experimental study on supporting a roadway in steeply inclined geological formations</title><author>Wu, Guojun ; Jia, Shanpo ; Chen, Weizhong ; Yuan, Jingqiang ; Yu, Hongdan ; Zhao, Wusheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a351t-48f70503140c29e34d8666223dfef19b2fe061c2f467bb7c9307f3fbb45f16b63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Anchor bolt</topic><topic>Anchor bolts</topic><topic>Automatic</topic><topic>Axial forces</topic><topic>Bolts</topic><topic>Deformation mechanisms</topic><topic>Experiment</topic><topic>Experiments</topic><topic>Force distribution</topic><topic>Formations</topic><topic>Geology</topic><topic>Roads</topic><topic>Roads & highways</topic><topic>Roadway</topic><topic>Rocks</topic><topic>Steeply inclined</topic><topic>Stress concentration</topic><topic>Stress distribution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Guojun</creatorcontrib><creatorcontrib>Jia, Shanpo</creatorcontrib><creatorcontrib>Chen, Weizhong</creatorcontrib><creatorcontrib>Yuan, Jingqiang</creatorcontrib><creatorcontrib>Yu, Hongdan</creatorcontrib><creatorcontrib>Zhao, Wusheng</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Tunnelling and underground space technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Guojun</au><au>Jia, Shanpo</au><au>Chen, Weizhong</au><au>Yuan, Jingqiang</au><au>Yu, Hongdan</au><au>Zhao, Wusheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An anchorage experimental study on supporting a roadway in steeply inclined geological formations</atitle><jtitle>Tunnelling and underground space technology</jtitle><date>2018-12</date><risdate>2018</risdate><volume>82</volume><spage>125</spage><epage>134</epage><pages>125-134</pages><issn>0886-7798</issn><eissn>1878-4364</eissn><abstract>The support of rock bolt plays a significant role in maintaining the stability of a roadway in steeply inclined geological formations, yet choosing a reasonable support scheme of rock bolt in this situation is still not well understood. To reveal the force or stress distribution mechanism of anchor bolts and design an effective support scheme, an in situ anchorage experiment was conducted in a deep-buried roadway in steeply inclined rock strata. This results of this study demonstrate that in the steeply inclined rock formations, the intersection angle of a bolt length direction and the interface of rock layers have a great effect on the distribution and variation of axial force in bolts. The axial forces at the positions near the intersection of the interface and bolt increase a lot with time. In addition, the existence of no small or non-zero axial force at the end of anchor bolts indicates that much longer bolts should be used to prevent further deformation in steeply inclined rock.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.tust.2018.08.007</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-4192-9735</orcidid></addata></record> |
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| identifier | ISSN: 0886-7798 |
| ispartof | Tunnelling and underground space technology, 2018-12, Vol.82, p.125-134 |
| issn | 0886-7798 1878-4364 |
| language | eng |
| recordid | cdi_proquest_journals_2137454203 |
| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Anchor bolt Anchor bolts Automatic Axial forces Bolts Deformation mechanisms Experiment Experiments Force distribution Formations Geology Roads Roads & highways Roadway Rocks Steeply inclined Stress concentration Stress distribution |
| title | An anchorage experimental study on supporting a roadway in steeply inclined geological formations |
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