Three-Dimensional Stability of a Slope Subjected to Seepage Forces
AbstractThree-dimensional (3D) stability of a slope subjected to seepage forces is studied in this work in light of the kinematic approach of limit analysis. The widely used horn model for 3D stability of slopes is presented and discretized for the first time. To compute the seepage forces developed...
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| Veröffentlicht in: | International journal of geomechanics 2017-08, Vol.17 (8) |
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| creator | Pan, Qiujing Xu, Jingshu Dias, Daniel |
| description | AbstractThree-dimensional (3D) stability of a slope subjected to seepage forces is studied in this work in light of the kinematic approach of limit analysis. The widely used horn model for 3D stability of slopes is presented and discretized for the first time. To compute the seepage forces developed in a slope, 3D numerical calculations are used to solve the seepage-flow problem. The discretization makes it possible to calculate the seepage force acting on each element of the discretized horn mechanism by using the numerical results. The safety factors obtained by the proposed approach agree well with those given by numerical calculations. The influence of soil properties, 3D slope geometry, and anisotropic permeability is discussed in this work. Numerical results show that the 3D effect is important for B/H ratios lower than 10.0, beyond which the two-dimensional (2D) plane-strain analysis can be used for a 3D slope, and that a larger horizontal permeability with respect to the vertical one is a favorable factor for the slope stability. |
| doi_str_mv | 10.1061/(ASCE)GM.1943-5622.0000913 |
| format | Article |
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The widely used horn model for 3D stability of slopes is presented and discretized for the first time. To compute the seepage forces developed in a slope, 3D numerical calculations are used to solve the seepage-flow problem. The discretization makes it possible to calculate the seepage force acting on each element of the discretized horn mechanism by using the numerical results. The safety factors obtained by the proposed approach agree well with those given by numerical calculations. The influence of soil properties, 3D slope geometry, and anisotropic permeability is discussed in this work. Numerical results show that the 3D effect is important for B/H ratios lower than 10.0, beyond which the two-dimensional (2D) plane-strain analysis can be used for a 3D slope, and that a larger horizontal permeability with respect to the vertical one is a favorable factor for the slope stability.</description><identifier>ISSN: 1532-3641</identifier><identifier>EISSN: 1943-5622</identifier><identifier>DOI: 10.1061/(ASCE)GM.1943-5622.0000913</identifier><language>eng</language><publisher>American Society of Civil Engineers</publisher><subject>Horns ; Mathematical models ; Seepage ; Slope stability ; Slopes ; Soil permeability ; Technical Papers ; Three dimensional models ; Two-dimensional analysis</subject><ispartof>International journal of geomechanics, 2017-08, Vol.17 (8)</ispartof><rights>2017 American Society of Civil Engineers.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a497t-dea0489e1d31aa5ad65e4edd04a5c0631fe04fb9eff2b336340a4230f63795d33</citedby><cites>FETCH-LOGICAL-a497t-dea0489e1d31aa5ad65e4edd04a5c0631fe04fb9eff2b336340a4230f63795d33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttp://ascelibrary.org/doi/pdf/10.1061/(ASCE)GM.1943-5622.0000913$$EPDF$$P50$$Gasce$$H</linktopdf><linktohtml>$$Uhttp://ascelibrary.org/doi/abs/10.1061/(ASCE)GM.1943-5622.0000913$$EHTML$$P50$$Gasce$$H</linktohtml><link.rule.ids>314,778,782,27907,27908,75944,75952</link.rule.ids></links><search><creatorcontrib>Pan, Qiujing</creatorcontrib><creatorcontrib>Xu, Jingshu</creatorcontrib><creatorcontrib>Dias, Daniel</creatorcontrib><title>Three-Dimensional Stability of a Slope Subjected to Seepage Forces</title><title>International journal of geomechanics</title><description>AbstractThree-dimensional (3D) stability of a slope subjected to seepage forces is studied in this work in light of the kinematic approach of limit analysis. The widely used horn model for 3D stability of slopes is presented and discretized for the first time. To compute the seepage forces developed in a slope, 3D numerical calculations are used to solve the seepage-flow problem. The discretization makes it possible to calculate the seepage force acting on each element of the discretized horn mechanism by using the numerical results. The safety factors obtained by the proposed approach agree well with those given by numerical calculations. The influence of soil properties, 3D slope geometry, and anisotropic permeability is discussed in this work. Numerical results show that the 3D effect is important for B/H ratios lower than 10.0, beyond which the two-dimensional (2D) plane-strain analysis can be used for a 3D slope, and that a larger horizontal permeability with respect to the vertical one is a favorable factor for the slope stability.</description><subject>Horns</subject><subject>Mathematical models</subject><subject>Seepage</subject><subject>Slope stability</subject><subject>Slopes</subject><subject>Soil permeability</subject><subject>Technical Papers</subject><subject>Three dimensional models</subject><subject>Two-dimensional analysis</subject><issn>1532-3641</issn><issn>1943-5622</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqNkTFPwzAQhS0EEqXwHyymMqT4YseJ2aC0BakVQ8psOckFUqV1sZOh_55ErbohesudTu89ne4j5B7YGJiEx9FzOpk-zJdjUIIHkQzDMetKAb8gg9PuspsjHgZcCrgmN96vGYNYRGpAXlbfDjF4rTa49ZXdmpqmjcmqumr21JbU0LS2O6Rpm60xb7CgjaUp4s58IZ1Zl6O_JVelqT3eHfuQfM6mq8lbsPiYv0-eF4ERKm6CAg0TiUIoOBgTmUJGKLAomDBRziSHEpkoM4VlGWacSy6YESFnpeSxigrOh2R0yN05-9Oib_Sm8jnWtdmibb0GxUQoRAzh_9JExTyWSqhzpLx7p1RnHJAkEEtQwDrp00GaO-u9w1LvXLUxbq-B6Z6c1j05PV_qnpLuKekjuc4sD2bTpeu1bV2HxZ-cfxt_AQsbmqA</recordid><startdate>20170801</startdate><enddate>20170801</enddate><creator>Pan, Qiujing</creator><creator>Xu, Jingshu</creator><creator>Dias, Daniel</creator><general>American Society of Civil Engineers</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20170801</creationdate><title>Three-Dimensional Stability of a Slope Subjected to Seepage Forces</title><author>Pan, Qiujing ; Xu, Jingshu ; Dias, Daniel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a497t-dea0489e1d31aa5ad65e4edd04a5c0631fe04fb9eff2b336340a4230f63795d33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Horns</topic><topic>Mathematical models</topic><topic>Seepage</topic><topic>Slope stability</topic><topic>Slopes</topic><topic>Soil permeability</topic><topic>Technical Papers</topic><topic>Three dimensional models</topic><topic>Two-dimensional analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pan, Qiujing</creatorcontrib><creatorcontrib>Xu, Jingshu</creatorcontrib><creatorcontrib>Dias, Daniel</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>International journal of geomechanics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Pan, Qiujing</au><au>Xu, Jingshu</au><au>Dias, Daniel</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Three-Dimensional Stability of a Slope Subjected to Seepage Forces</atitle><jtitle>International journal of geomechanics</jtitle><date>2017-08-01</date><risdate>2017</risdate><volume>17</volume><issue>8</issue><issn>1532-3641</issn><eissn>1943-5622</eissn><abstract>AbstractThree-dimensional (3D) stability of a slope subjected to seepage forces is studied in this work in light of the kinematic approach of limit analysis. The widely used horn model for 3D stability of slopes is presented and discretized for the first time. To compute the seepage forces developed in a slope, 3D numerical calculations are used to solve the seepage-flow problem. The discretization makes it possible to calculate the seepage force acting on each element of the discretized horn mechanism by using the numerical results. The safety factors obtained by the proposed approach agree well with those given by numerical calculations. The influence of soil properties, 3D slope geometry, and anisotropic permeability is discussed in this work. Numerical results show that the 3D effect is important for B/H ratios lower than 10.0, beyond which the two-dimensional (2D) plane-strain analysis can be used for a 3D slope, and that a larger horizontal permeability with respect to the vertical one is a favorable factor for the slope stability.</abstract><pub>American Society of Civil Engineers</pub><doi>10.1061/(ASCE)GM.1943-5622.0000913</doi></addata></record> |
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| ispartof | International journal of geomechanics, 2017-08, Vol.17 (8) |
| issn | 1532-3641 1943-5622 |
| language | eng |
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| source | American Society of Civil Engineers:NESLI2:Journals:2014 |
| subjects | Horns Mathematical models Seepage Slope stability Slopes Soil permeability Technical Papers Three dimensional models Two-dimensional analysis |
| title | Three-Dimensional Stability of a Slope Subjected to Seepage Forces |
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