Effect of Seepage Force on Tunnel Face Stability Using Limit Analysis with SRM
The seepage force is of importance on tunnel face stability. The formulas to determine the seepage force are introduced based on Darcy's Law. The formula of the stability safety factor containing the tunnel face of the seepage force is derived and applied to the actual tunnel engineering using...
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| Veröffentlicht in: | Geotechnical and geological engineering 2021-03, Vol.39 (3), p.1743-1751 |
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| container_title | Geotechnical and geological engineering |
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| creator | An, Yonglin Li, Jiahao Yue, Jian Zhou, Jin |
| description | The seepage force is of importance on tunnel face stability. The formulas to determine the seepage force are introduced based on Darcy's Law. The formula of the stability safety factor containing the tunnel face of the seepage force is derived and applied to the actual tunnel engineering using the upper bound limit analysis combining with the strength reduction method. The results show that: as the water level increases, the average seepage force increases, and the safety factor decreases. If the horizontal seepage force is considered only and the vertical seepage force is ignored, the result is unsafe. The stability of the tunnel face can be improved by reducing the excavation height and adopting some reinforcement, such as grouting or rock bolt to increase the cohesion and friction angle of the rock. |
| doi_str_mv | 10.1007/s10706-020-01585-y |
| format | Article |
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The formulas to determine the seepage force are introduced based on Darcy's Law. The formula of the stability safety factor containing the tunnel face of the seepage force is derived and applied to the actual tunnel engineering using the upper bound limit analysis combining with the strength reduction method. The results show that: as the water level increases, the average seepage force increases, and the safety factor decreases. If the horizontal seepage force is considered only and the vertical seepage force is ignored, the result is unsafe. The stability of the tunnel face can be improved by reducing the excavation height and adopting some reinforcement, such as grouting or rock bolt to increase the cohesion and friction angle of the rock.</description><identifier>ISSN: 0960-3182</identifier><identifier>EISSN: 1573-1529</identifier><identifier>DOI: 10.1007/s10706-020-01585-y</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Civil Engineering ; Darcys law ; Disclaimers ; Dredging ; Earth and Environmental Science ; Earth Sciences ; Excavation ; Geotechnical Engineering & Applied Earth Sciences ; Grouting ; Hydrogeology ; Limit analysis ; Original Paper ; Rocks ; Safety factors ; Seepage ; Stability ; Stability analysis ; Terrestrial Pollution ; Tunnels ; Upper bounds ; Vertical forces ; Waste Management/Waste Technology ; Water levels</subject><ispartof>Geotechnical and geological engineering, 2021-03, Vol.39 (3), p.1743-1751</ispartof><rights>Springer Nature Switzerland AG 2020</rights><rights>Springer Nature Switzerland AG 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a342t-e24ccf3937cfd376227d12c0c4025ddec31817ce5938d44ff78172dd81542a333</citedby><cites>FETCH-LOGICAL-a342t-e24ccf3937cfd376227d12c0c4025ddec31817ce5938d44ff78172dd81542a333</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10706-020-01585-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10706-020-01585-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51298</link.rule.ids></links><search><creatorcontrib>An, Yonglin</creatorcontrib><creatorcontrib>Li, Jiahao</creatorcontrib><creatorcontrib>Yue, Jian</creatorcontrib><creatorcontrib>Zhou, Jin</creatorcontrib><title>Effect of Seepage Force on Tunnel Face Stability Using Limit Analysis with SRM</title><title>Geotechnical and geological engineering</title><addtitle>Geotech Geol Eng</addtitle><description>The seepage force is of importance on tunnel face stability. The formulas to determine the seepage force are introduced based on Darcy's Law. The formula of the stability safety factor containing the tunnel face of the seepage force is derived and applied to the actual tunnel engineering using the upper bound limit analysis combining with the strength reduction method. The results show that: as the water level increases, the average seepage force increases, and the safety factor decreases. If the horizontal seepage force is considered only and the vertical seepage force is ignored, the result is unsafe. The stability of the tunnel face can be improved by reducing the excavation height and adopting some reinforcement, such as grouting or rock bolt to increase the cohesion and friction angle of the rock.</description><subject>Civil Engineering</subject><subject>Darcys law</subject><subject>Disclaimers</subject><subject>Dredging</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Excavation</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Grouting</subject><subject>Hydrogeology</subject><subject>Limit analysis</subject><subject>Original Paper</subject><subject>Rocks</subject><subject>Safety factors</subject><subject>Seepage</subject><subject>Stability</subject><subject>Stability analysis</subject><subject>Terrestrial Pollution</subject><subject>Tunnels</subject><subject>Upper bounds</subject><subject>Vertical forces</subject><subject>Waste Management/Waste Technology</subject><subject>Water levels</subject><issn>0960-3182</issn><issn>1573-1529</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNp9kEFLwzAcxYMoOKdfwFPAc_SfpGna4xibClPBbucQ02RmdO1MOqTf3mgFb54eD957PH4IXVO4pQDyLlKQkBNgQICKQpDhBE2okJxQwcpTNIEyB8Jpwc7RRYw7AGA50Al6XjhnTY87hytrD3pr8bILxuKuxetj29oGL3WyVa_ffOP7AW-ib7d45fe-x7NWN0P0EX_6_h1Xr0-X6MzpJtqrX52izXKxnj-Q1cv943y2IppnrCeWZcY4XnJpXM1lzpisKTNgMmCirq1JT6k0VpS8qLPMOZksq-uCioxpzvkU3Yy7h9B9HG3s1a47hvQmKiYA8qLI8jyl2JgyoYsxWKcOwe91GBQF9c1NjdxU4qZ-uKkhlfhYiincbm34m_6n9QVmSG72</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>An, Yonglin</creator><creator>Li, Jiahao</creator><creator>Yue, Jian</creator><creator>Zhou, Jin</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>7UA</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>H96</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>L6V</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope></search><sort><creationdate>20210301</creationdate><title>Effect of Seepage Force on Tunnel Face Stability Using Limit Analysis with SRM</title><author>An, Yonglin ; 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The formulas to determine the seepage force are introduced based on Darcy's Law. The formula of the stability safety factor containing the tunnel face of the seepage force is derived and applied to the actual tunnel engineering using the upper bound limit analysis combining with the strength reduction method. The results show that: as the water level increases, the average seepage force increases, and the safety factor decreases. If the horizontal seepage force is considered only and the vertical seepage force is ignored, the result is unsafe. The stability of the tunnel face can be improved by reducing the excavation height and adopting some reinforcement, such as grouting or rock bolt to increase the cohesion and friction angle of the rock.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10706-020-01585-y</doi><tpages>9</tpages></addata></record> |
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| subjects | Civil Engineering Darcys law Disclaimers Dredging Earth and Environmental Science Earth Sciences Excavation Geotechnical Engineering & Applied Earth Sciences Grouting Hydrogeology Limit analysis Original Paper Rocks Safety factors Seepage Stability Stability analysis Terrestrial Pollution Tunnels Upper bounds Vertical forces Waste Management/Waste Technology Water levels |
| title | Effect of Seepage Force on Tunnel Face Stability Using Limit Analysis with SRM |
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