Numerical Modeling of Stand-Up Time of Tunnels Considering Time-Dependent Deformation of Jointed Rock Masses
The mechanical responses of tunnels are time-dependent due to creep deformation of rock masses, which can result in large deformations on tunnel walls over time and influence excavation stability. This study investigates time-dependent deformation behaviors of tunnels excavated in jointed rock masse...
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| Veröffentlicht in: | Rock mechanics and rock engineering 2022-07, Vol.55 (7), p.4305-4328 |
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| creator | Wang, Mingzheng Cai, Ming |
| description | The mechanical responses of tunnels are time-dependent due to creep deformation of rock masses, which can result in large deformations on tunnel walls over time and influence excavation stability. This study investigates time-dependent deformation behaviors of tunnels excavated in jointed rock masses. The creep deformations of both rock and joints are considered using a creep model for jointed rock masses implemented in a distinct-element method code. Simulations of the time-dependent deformation behavior of tunnels are conducted using two-dimensional plane strain models based on the convergence-confinement analysis method. The weakening of the rock mass in a cross-section in an excavated tunnel due to time-dependent deformation of rock mass is simulated using the internal pressure reduction method. Stand-up times of tunnels excavated in jointed rock masses with different rock mass qualities and unsupported roof spans are simulated. The simulation results agree with field data, which validates the effectiveness of the analysis approach used. The analysis approach provides a useful tool for improving the understanding of time-dependent deformation behavior of tunnels.
Highlights
Time-dependent deformation of rock mass near the tunnel face is simulated using a creep model for jointed rock mass implemented in UDEC.
The weakening of face-effect due to time-dependent deformation of rock mass can be analyzed using the convergence-confinement and the internal pressure reduction methods.
Stand-up times of unsupported tunnels in joined rock masses are simulated.
The simulated stand-up times agree with Bieniawski’s field data. |
| doi_str_mv | 10.1007/s00603-022-02871-2 |
| format | Article |
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Highlights
Time-dependent deformation of rock mass near the tunnel face is simulated using a creep model for jointed rock mass implemented in UDEC.
The weakening of face-effect due to time-dependent deformation of rock mass can be analyzed using the convergence-confinement and the internal pressure reduction methods.
Stand-up times of unsupported tunnels in joined rock masses are simulated.
The simulated stand-up times agree with Bieniawski’s field data.</description><identifier>ISSN: 0723-2632</identifier><identifier>EISSN: 1434-453X</identifier><identifier>DOI: 10.1007/s00603-022-02871-2</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Analysis ; Civil Engineering ; Confinement ; Convergence ; Creep strength ; Deformation ; Deformation effects ; Discrete element method ; Dredging ; Earth and Environmental Science ; Earth Sciences ; Excavation ; Geophysics/Geodesy ; Internal pressure ; Jointed rock ; Joints (timber) ; Methods ; Original Paper ; Plane strain ; Pressure reduction ; Rock masses ; Rocks ; Simulation ; Solifluction ; Time dependence ; Tunnels</subject><ispartof>Rock mechanics and rock engineering, 2022-07, Vol.55 (7), p.4305-4328</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022</rights><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2022.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-f7106cc4f12e8e03d21bd79c81f3bb340c285c77325ac1d4fb0b6187c5aa761a3</citedby><cites>FETCH-LOGICAL-c319t-f7106cc4f12e8e03d21bd79c81f3bb340c285c77325ac1d4fb0b6187c5aa761a3</cites><orcidid>0000-0002-7403-3206</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00603-022-02871-2$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00603-022-02871-2$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Wang, Mingzheng</creatorcontrib><creatorcontrib>Cai, Ming</creatorcontrib><title>Numerical Modeling of Stand-Up Time of Tunnels Considering Time-Dependent Deformation of Jointed Rock Masses</title><title>Rock mechanics and rock engineering</title><addtitle>Rock Mech Rock Eng</addtitle><description>The mechanical responses of tunnels are time-dependent due to creep deformation of rock masses, which can result in large deformations on tunnel walls over time and influence excavation stability. This study investigates time-dependent deformation behaviors of tunnels excavated in jointed rock masses. The creep deformations of both rock and joints are considered using a creep model for jointed rock masses implemented in a distinct-element method code. Simulations of the time-dependent deformation behavior of tunnels are conducted using two-dimensional plane strain models based on the convergence-confinement analysis method. The weakening of the rock mass in a cross-section in an excavated tunnel due to time-dependent deformation of rock mass is simulated using the internal pressure reduction method. Stand-up times of tunnels excavated in jointed rock masses with different rock mass qualities and unsupported roof spans are simulated. The simulation results agree with field data, which validates the effectiveness of the analysis approach used. The analysis approach provides a useful tool for improving the understanding of time-dependent deformation behavior of tunnels.
Highlights
Time-dependent deformation of rock mass near the tunnel face is simulated using a creep model for jointed rock mass implemented in UDEC.
The weakening of face-effect due to time-dependent deformation of rock mass can be analyzed using the convergence-confinement and the internal pressure reduction methods.
Stand-up times of unsupported tunnels in joined rock masses are simulated.
The simulated stand-up times agree with Bieniawski’s field data.</description><subject>Analysis</subject><subject>Civil Engineering</subject><subject>Confinement</subject><subject>Convergence</subject><subject>Creep strength</subject><subject>Deformation</subject><subject>Deformation effects</subject><subject>Discrete element method</subject><subject>Dredging</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Excavation</subject><subject>Geophysics/Geodesy</subject><subject>Internal pressure</subject><subject>Jointed rock</subject><subject>Joints (timber)</subject><subject>Methods</subject><subject>Original Paper</subject><subject>Plane strain</subject><subject>Pressure reduction</subject><subject>Rock masses</subject><subject>Rocks</subject><subject>Simulation</subject><subject>Solifluction</subject><subject>Time dependence</subject><subject>Tunnels</subject><issn>0723-2632</issn><issn>1434-453X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kE1LxDAQhoMouK7-AU8Fz9F8tE32KLt-squgu-AtpPmQrm1Sk_bgvze1gjcPw8DM-8zAA8A5RpcYIXYVESoRhYiQVJxhSA7ADOc0h3lB3w7BDDFCISkpOQYnMe4RSkvGZ6B5GloTaiWbbOO1aWr3nnmbvfbSabjrsm3dmnGwHZwzTcyW3sVaJyLlxh1cmc44bVyfrYz1oZV97d1IPPra9UZnL159ZBsZo4mn4MjKJpqz3z4Hu9ub7fIerp_vHpbXa6goXvTQMoxKpXKLieEGUU1wpdlCcWxpVdEcKcILxRglhVRY57ZCVYk5U4WUrMSSzsHFdLcL_nMwsRd7PwSXXgpScpzoBeMpRaaUCj7GYKzoQt3K8CUwEqNVMVkVyar4sSpIgugExW50YMLf6X-ob3HqeoQ</recordid><startdate>20220701</startdate><enddate>20220701</enddate><creator>Wang, Mingzheng</creator><creator>Cai, Ming</creator><general>Springer Vienna</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TN</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</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>FR3</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>M2P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><orcidid>https://orcid.org/0000-0002-7403-3206</orcidid></search><sort><creationdate>20220701</creationdate><title>Numerical Modeling of Stand-Up Time of Tunnels Considering Time-Dependent Deformation of Jointed Rock Masses</title><author>Wang, Mingzheng ; Cai, Ming</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-f7106cc4f12e8e03d21bd79c81f3bb340c285c77325ac1d4fb0b6187c5aa761a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Analysis</topic><topic>Civil Engineering</topic><topic>Confinement</topic><topic>Convergence</topic><topic>Creep strength</topic><topic>Deformation</topic><topic>Deformation effects</topic><topic>Discrete element method</topic><topic>Dredging</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Excavation</topic><topic>Geophysics/Geodesy</topic><topic>Internal pressure</topic><topic>Jointed rock</topic><topic>Joints (timber)</topic><topic>Methods</topic><topic>Original Paper</topic><topic>Plane strain</topic><topic>Pressure reduction</topic><topic>Rock masses</topic><topic>Rocks</topic><topic>Simulation</topic><topic>Solifluction</topic><topic>Time dependence</topic><topic>Tunnels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Mingzheng</creatorcontrib><creatorcontrib>Cai, Ming</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>ProQuest Science Journals</collection><collection>Engineering Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Rock mechanics and rock engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Mingzheng</au><au>Cai, Ming</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Numerical Modeling of Stand-Up Time of Tunnels Considering Time-Dependent Deformation of Jointed Rock Masses</atitle><jtitle>Rock mechanics and rock engineering</jtitle><stitle>Rock Mech Rock Eng</stitle><date>2022-07-01</date><risdate>2022</risdate><volume>55</volume><issue>7</issue><spage>4305</spage><epage>4328</epage><pages>4305-4328</pages><issn>0723-2632</issn><eissn>1434-453X</eissn><abstract>The mechanical responses of tunnels are time-dependent due to creep deformation of rock masses, which can result in large deformations on tunnel walls over time and influence excavation stability. This study investigates time-dependent deformation behaviors of tunnels excavated in jointed rock masses. The creep deformations of both rock and joints are considered using a creep model for jointed rock masses implemented in a distinct-element method code. Simulations of the time-dependent deformation behavior of tunnels are conducted using two-dimensional plane strain models based on the convergence-confinement analysis method. The weakening of the rock mass in a cross-section in an excavated tunnel due to time-dependent deformation of rock mass is simulated using the internal pressure reduction method. Stand-up times of tunnels excavated in jointed rock masses with different rock mass qualities and unsupported roof spans are simulated. The simulation results agree with field data, which validates the effectiveness of the analysis approach used. The analysis approach provides a useful tool for improving the understanding of time-dependent deformation behavior of tunnels.
Highlights
Time-dependent deformation of rock mass near the tunnel face is simulated using a creep model for jointed rock mass implemented in UDEC.
The weakening of face-effect due to time-dependent deformation of rock mass can be analyzed using the convergence-confinement and the internal pressure reduction methods.
Stand-up times of unsupported tunnels in joined rock masses are simulated.
The simulated stand-up times agree with Bieniawski’s field data.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00603-022-02871-2</doi><tpages>24</tpages><orcidid>https://orcid.org/0000-0002-7403-3206</orcidid></addata></record> |
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| ispartof | Rock mechanics and rock engineering, 2022-07, Vol.55 (7), p.4305-4328 |
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| subjects | Analysis Civil Engineering Confinement Convergence Creep strength Deformation Deformation effects Discrete element method Dredging Earth and Environmental Science Earth Sciences Excavation Geophysics/Geodesy Internal pressure Jointed rock Joints (timber) Methods Original Paper Plane strain Pressure reduction Rock masses Rocks Simulation Solifluction Time dependence Tunnels |
| title | Numerical Modeling of Stand-Up Time of Tunnels Considering Time-Dependent Deformation of Jointed Rock Masses |
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