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Article: Unsaturated seepage analysis and back analysis of permeability coefficient for Xietan landslide in Three Gorges Reservoir area
Title | Unsaturated seepage analysis and back analysis of permeability coefficient for Xietan landslide in Three Gorges Reservoir area 三峽庫區泄灘滑坡非飽和滲流分析及滲透系數反演 |
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Authors | |
Keywords | Back-propagation neural network Genetic algorithm Permeability coefficient Unsaturated seepage Xietan landslide |
Issue Date | 2008 |
Publisher | 中國科學院武漢巖土力學研究所. The Journal's web site is located at http://ytlx.chinajournal.net.cn/ |
Citation | Yantu Lixue/Rock And Soil Mechanics, 2008, v. 29 n. 8, p. 2262-2266 How to Cite? 巖土力學, 2008, v. 29 n. 8, p. 2262-2266 How to Cite? |
Abstract | The hydrogeological structure of Xietan landslide is very complex; its slidebody, slipband and sliding-disturbed zone can be regarded as porous continuous medium, but its infiltrative bedrock is fractured. An equivalent continuum model is used to model fractured rock; and a finite element model of saturated-unsaturated seepage analysis of Xietan landslide is established. Then back-propagation neural network is used to substitute finite element seepage analysis; and saturated permeability coefficient of every stratum is optimized by genetic algorithm based on monitoring data during reservoir filling. The saturated permeability coefficient of slidebody by back analysis is 4.89 × 10-2 cm/s, which is consistent with field testing result (1.78 × 10-2 cm/s to 3.2 × 10-2 cm/s); the saturated permeability coefficient of slipband by back analysis is 4.66 × 10-5 cm/s, which is very larger than indoor testing result (2.74 × 10-7 cm/s to 5.73 × 10-7 cm/s). The scale effect of soil sample is reflected by this difference. |
Persistent Identifier | http://hdl.handle.net/10722/150474 |
ISSN | 2020 SCImago Journal Rankings: 0.642 |
References |
DC Field | Value | Language |
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dc.contributor.author | Wei, JB | en_HK |
dc.contributor.author | Deng, JH | en_HK |
dc.contributor.author | Gao, CY | en_HK |
dc.contributor.author | Tham, LG | en_HK |
dc.contributor.author | Lee, CF | en_HK |
dc.date.accessioned | 2012-06-26T06:05:02Z | - |
dc.date.available | 2012-06-26T06:05:02Z | - |
dc.date.issued | 2008 | en_HK |
dc.identifier.citation | Yantu Lixue/Rock And Soil Mechanics, 2008, v. 29 n. 8, p. 2262-2266 | en_HK |
dc.identifier.citation | 巖土力學, 2008, v. 29 n. 8, p. 2262-2266 | - |
dc.identifier.issn | 1000-7598 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/150474 | - |
dc.description.abstract | The hydrogeological structure of Xietan landslide is very complex; its slidebody, slipband and sliding-disturbed zone can be regarded as porous continuous medium, but its infiltrative bedrock is fractured. An equivalent continuum model is used to model fractured rock; and a finite element model of saturated-unsaturated seepage analysis of Xietan landslide is established. Then back-propagation neural network is used to substitute finite element seepage analysis; and saturated permeability coefficient of every stratum is optimized by genetic algorithm based on monitoring data during reservoir filling. The saturated permeability coefficient of slidebody by back analysis is 4.89 × 10-2 cm/s, which is consistent with field testing result (1.78 × 10-2 cm/s to 3.2 × 10-2 cm/s); the saturated permeability coefficient of slipband by back analysis is 4.66 × 10-5 cm/s, which is very larger than indoor testing result (2.74 × 10-7 cm/s to 5.73 × 10-7 cm/s). The scale effect of soil sample is reflected by this difference. | en_HK |
dc.language | chi | en_US |
dc.publisher | 中國科學院武漢巖土力學研究所. The Journal's web site is located at http://ytlx.chinajournal.net.cn/ | en_HK |
dc.relation.ispartof | Yantu Lixue/Rock and Soil Mechanics | en_HK |
dc.relation.ispartof | 巖土力學 | - |
dc.subject | Back-propagation neural network | en_HK |
dc.subject | Genetic algorithm | en_HK |
dc.subject | Permeability coefficient | en_HK |
dc.subject | Unsaturated seepage | en_HK |
dc.subject | Xietan landslide | en_HK |
dc.title | Unsaturated seepage analysis and back analysis of permeability coefficient for Xietan landslide in Three Gorges Reservoir area | en_HK |
dc.title | 三峽庫區泄灘滑坡非飽和滲流分析及滲透系數反演 | - |
dc.type | Article | en_HK |
dc.identifier.email | Tham, LG: hrectlg@hku.hk | en_HK |
dc.identifier.email | Lee, CF: leecf@hkucc.hku.hk | en_HK |
dc.identifier.authority | Tham, LG=rp00176 | en_HK |
dc.identifier.authority | Lee, CF=rp00139 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-54549088810 | en_HK |
dc.identifier.hkuros | 212149 | - |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-54549088810&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 29 | en_HK |
dc.identifier.issue | 8 | en_HK |
dc.identifier.spage | 2262 | en_HK |
dc.identifier.epage | 2266 | en_HK |
dc.publisher.place | China | en_HK |
dc.identifier.scopusauthorid | Wei, JB=7403085330 | en_HK |
dc.identifier.scopusauthorid | Deng, JH=7402612983 | en_HK |
dc.identifier.scopusauthorid | Gao, CY=7402617393 | en_HK |
dc.identifier.scopusauthorid | Tham, LG=7006213628 | en_HK |
dc.identifier.scopusauthorid | Lee, CF=8068602600 | en_HK |
dc.identifier.issnl | 1000-7598 | - |