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Article: Variation law of pore water pressure in soil improved by underwater vacuum preloading method

TitleVariation law of pore water pressure in soil improved by underwater vacuum preloading method
Authors
KeywordsField test (強度)
Pore water pressure (沉降)
Settlement (孔隙水壓力)
Strength (現場試驗)
Underwater vacuum preloading (水下真空預壓)
Issue Date2008
PublisherEditorial Office of Chinese Journal of Geotechnical Engineering (巖土工程學報編輯部). The Journal's web site is located at http://www.cgejournal.com/CN/volumn/home.shtml
Citation
Chinese Journal Of Geotechnical Engineering, 2008, v. 30 n. 5, p. 658-662 How to Cite?
巖土工程學報, 2008, v. 30 n. 5, p. 658-662 How to Cite?
AbstractThe measurement and analysis of pore water pressure is significant for the studies on under water vacuum preloading method. In order to study the variation of pore water pressure, the full-scale field tests were performed. It was indicated that the variation of pore water pressure was influenced by water pressures on the sealing membrane and negative pressures in sand cushion. The variation of stress in soil was equal to the difference between the values of pore pressure before and during vacuum preloading, indicating that water pressures on the sealing membrane could act as preloading loads. When the depth of water on membrane increased, the positive pore pressure would be induced in soil which, and it similar to the surcharge load. The distribution of negative pore pressure in soil was not uniform, causing differential settlement and strength increase.
孔隙水壓力的量測和分析對研究水下真空預壓法具有重要意義。在已經完成的水下真空預壓現場試驗中,把孔隙水壓力做為主要研究對象進行了監測。結果顯示孔隙水壓力的變化受膜上水壓和膜下負壓的影響。水下真空預壓期間土體中各點應力的改變等于加固前孔壓與加固過程中孔壓之差。膜上水壓可以做為預壓荷載。當膜上水壓增大時,增加的水壓使土體產生正的超靜孔隙水壓力,相當于堆載。水下真空預壓過程中負超靜孔壓分布的不均勻使加固區內產生差異沉降和不均勻的強度增長。
Persistent Identifierhttp://hdl.handle.net/10722/70611
ISSN
2015 SCImago Journal Rankings: 0.781
References

 

DC FieldValueLanguage
dc.contributor.authorHan, XFen_HK
dc.contributor.authorKwong, AKLen_HK
dc.contributor.authorTham, LGen_HK
dc.contributor.authorZhao, WBen_HK
dc.date.accessioned2010-09-06T06:24:32Z-
dc.date.available2010-09-06T06:24:32Z-
dc.date.issued2008en_HK
dc.identifier.citationChinese Journal Of Geotechnical Engineering, 2008, v. 30 n. 5, p. 658-662en_HK
dc.identifier.citation巖土工程學報, 2008, v. 30 n. 5, p. 658-662-
dc.identifier.issn1000-4548en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70611-
dc.description.abstractThe measurement and analysis of pore water pressure is significant for the studies on under water vacuum preloading method. In order to study the variation of pore water pressure, the full-scale field tests were performed. It was indicated that the variation of pore water pressure was influenced by water pressures on the sealing membrane and negative pressures in sand cushion. The variation of stress in soil was equal to the difference between the values of pore pressure before and during vacuum preloading, indicating that water pressures on the sealing membrane could act as preloading loads. When the depth of water on membrane increased, the positive pore pressure would be induced in soil which, and it similar to the surcharge load. The distribution of negative pore pressure in soil was not uniform, causing differential settlement and strength increase.en_HK
dc.description.abstract孔隙水壓力的量測和分析對研究水下真空預壓法具有重要意義。在已經完成的水下真空預壓現場試驗中,把孔隙水壓力做為主要研究對象進行了監測。結果顯示孔隙水壓力的變化受膜上水壓和膜下負壓的影響。水下真空預壓期間土體中各點應力的改變等于加固前孔壓與加固過程中孔壓之差。膜上水壓可以做為預壓荷載。當膜上水壓增大時,增加的水壓使土體產生正的超靜孔隙水壓力,相當于堆載。水下真空預壓過程中負超靜孔壓分布的不均勻使加固區內產生差異沉降和不均勻的強度增長。-
dc.languagechien_HK
dc.publisherEditorial Office of Chinese Journal of Geotechnical Engineering (巖土工程學報編輯部). The Journal's web site is located at http://www.cgejournal.com/CN/volumn/home.shtmlzh_HK
dc.relation.ispartofChinese Journal of Geotechnical Engineeringen_HK
dc.relation.ispartof巖土工程學報-
dc.subjectField test (強度)en_HK
dc.subjectPore water pressure (沉降)en_HK
dc.subjectSettlement (孔隙水壓力)en_HK
dc.subjectStrength (現場試驗)en_HK
dc.subjectUnderwater vacuum preloading (水下真空預壓)en_HK
dc.titleVariation law of pore water pressure in soil improved by underwater vacuum preloading methoden_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1000-4548&volume=30&issue=5&spage=658&epage=662&date=2008&atitle=Variation+law+of+pore+water+pressure+in+soil+improved+by+underwater+vacuum+preloading+method+(水下真空預壓過程中孔隙水壓力變化規律研究)zh_HK
dc.identifier.emailKwong, AKL:kwongakl@hkucc.hku.hken_HK
dc.identifier.emailTham, LG:hrectlg@hkucc.hku.hken_HK
dc.identifier.authorityKwong, AKL=rp00129en_HK
dc.identifier.authorityTham, LG=rp00176en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-45449120650en_HK
dc.identifier.hkuros140028en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-45449120650&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume30en_HK
dc.identifier.issue5en_HK
dc.identifier.spage658en_HK
dc.identifier.epage662en_HK
dc.publisher.placeNanjing (南京)en_HK
dc.identifier.scopusauthoridHan, XF=24485416400en_HK
dc.identifier.scopusauthoridKwong, AKL=24385436300en_HK
dc.identifier.scopusauthoridTham, LG=7006213628en_HK
dc.identifier.scopusauthoridZhao, WB=7403943266en_HK
dc.customcontrol.immutablecsl 140805-

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