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Article: Field tests of saturated and unsaturated hydraulic parameters of gravelly soil in Xietan landslide

TitleField tests of saturated and unsaturated hydraulic parameters of gravelly soil in Xietan landslide
泄灘滑坡碎塊石土飽和與非飽和水力學參數的現場試驗研究
Authors
KeywordsGrain-size distribution
Gravelly soil
SWCC
Unsaturated hydraulic parameter
Xietan landslide
Issue Date2007
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, 2007, v. 28 n. 2, p. 327-330+335 How to Cite?
巖土力學, 2007, v. 28 n. 2, p. 327-330 How to Cite?
AbstractThe hydraulic parameters of gravelly soil are difficult to determine due to its high gravel content and large grain size. The field permeability tests of gravelly soils layer of the slidebody of Xietan landslide have been carried out by double ring; and the test results are analyzed by empirical formulas, considering the soil porosity, grain-size distribution etc. Then, the soil-water characteristic curve (SWCC) is tested by the method of tensiometer-moisture content and fitted by Fredlund model. And finally, the unsaturated permeability coefficient of gravelly soil is calculated by empirical formulas based on its SWCC and saturated permeability coefficient. The test data demonstrate that, the saturated permeability coefficient of gravelly soil layer is quite good with permeability coefficient varied between 1.78 × 10-2 cm/s to 3.2 × 10-2 cm/s; smaller fine grain content, bigger effective grain size and controlling grain size will lead to larger permeability coefficient. Through these works, the unsaturated hydraulic parameters are determined for the unsaturated seepage analysis of Xietan landslide; and the technique can be used as reference for similar soils.
Persistent Identifierhttp://hdl.handle.net/10722/150399
ISSN
2015 SCImago Journal Rankings: 0.843
References

 

DC FieldValueLanguage
dc.contributor.authorWei, JBen_HK
dc.contributor.authorDeng, JHen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorLee, CFen_HK
dc.date.accessioned2012-06-26T06:04:18Z-
dc.date.available2012-06-26T06:04:18Z-
dc.date.issued2007en_HK
dc.identifier.citationYantu Lixue/Rock And Soil Mechanics, 2007, v. 28 n. 2, p. 327-330+335en_HK
dc.identifier.citation巖土力學, 2007, v. 28 n. 2, p. 327-330-
dc.identifier.issn1000-7598en_HK
dc.identifier.urihttp://hdl.handle.net/10722/150399-
dc.description.abstractThe hydraulic parameters of gravelly soil are difficult to determine due to its high gravel content and large grain size. The field permeability tests of gravelly soils layer of the slidebody of Xietan landslide have been carried out by double ring; and the test results are analyzed by empirical formulas, considering the soil porosity, grain-size distribution etc. Then, the soil-water characteristic curve (SWCC) is tested by the method of tensiometer-moisture content and fitted by Fredlund model. And finally, the unsaturated permeability coefficient of gravelly soil is calculated by empirical formulas based on its SWCC and saturated permeability coefficient. The test data demonstrate that, the saturated permeability coefficient of gravelly soil layer is quite good with permeability coefficient varied between 1.78 × 10-2 cm/s to 3.2 × 10-2 cm/s; smaller fine grain content, bigger effective grain size and controlling grain size will lead to larger permeability coefficient. Through these works, the unsaturated hydraulic parameters are determined for the unsaturated seepage analysis of Xietan landslide; and the technique can be used as reference for similar soils.en_HK
dc.languagechien_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.ispartofYantu Lixue/Rock and Soil Mechanicsen_HK
dc.relation.ispartof巖土力學-
dc.subjectGrain-size distributionen_HK
dc.subjectGravelly soilen_HK
dc.subjectSWCCen_HK
dc.subjectUnsaturated hydraulic parameteren_HK
dc.subjectXietan landslideen_HK
dc.titleField tests of saturated and unsaturated hydraulic parameters of gravelly soil in Xietan landslideen_HK
dc.title泄灘滑坡碎塊石土飽和與非飽和水力學參數的現場試驗研究-
dc.typeArticleen_HK
dc.identifier.emailTham, LG: hrectlg@hku.hken_HK
dc.identifier.emailLee, CF: leecf@hkucc.hku.hken_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.identifier.authorityLee, CF=rp00139en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-33947501370en_HK
dc.identifier.hkuros212148-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33947501370&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume28en_HK
dc.identifier.issue2en_HK
dc.identifier.spage327en_HK
dc.identifier.epage330+335en_HK
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridWei, JB=7403085330en_HK
dc.identifier.scopusauthoridDeng, JH=7402612983en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridLee, CF=8068602600en_HK

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