K0-consolidation in a triaxial cell and evaluation of in-situ K0 for marine clays with various characteristics
Identifieur interne : 001864 ( Main/Merge ); précédent : 001863; suivant : 001865K0-consolidation in a triaxial cell and evaluation of in-situ K0 for marine clays with various characteristics
Auteurs : Yoichi Watabe [Japon] ; Masanori Tanaka [Japon] ; Hiroyuki Tanaka [Japon] ; Takashi Tsuchida [Japon]Source :
- Soils and foundations [ 0038-0806 ] ; 2003.
Descripteurs français
- Pascal (Inist)
English descriptors
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Abstract
A series of K0-consolidation tests in a triaxial cell was carried out for marine clays collected from different areas in the world in order to investigate the behavior during Ko-consolidation tests and evaluate Ko-values that are required for laboratory tests with recompression techniques, FEM analysis using elasto-plastic constitutive equations, etc. It was confirmed that the famous equation KoNc "' 1 - sin Ø'is useful; however, the definition of Ø'should be concerned. In the case using Ø' corresponding to a critical state line, i.e. (q/p)max, the equation underestimates KoNc by 0.05; in contrast, in the case using Ø' corresponding to a peak strength, i.e. (q)max, the equation overestimates KoNc by 0.05. This study proposes a procedure for estimating the in-situ Ko-value. For a representative undisturbed clay sample, Ko-consolidation and Ko-overconsolidation tests (i.e. SHANSEP test) are consecutively carried out to obtain the K-OCR relationship. Using the profile of OCR obtained from a series of oedometer tests, the K-value corresponding to the OCR can be calculated as the in-situ Ko. The Ko-values obtained from both the Ko-overconsolidation test corresponding to the OCR in the laboratory and the flat dilatometer test (DMT test) in the field compared well.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">K<sub>0</sub>-consolidation in a triaxial cell and evaluation of in-situ K<sub>0</sub> for marine clays with various characteristics</title><author><name sortKey="Watabe, Yoichi" sort="Watabe, Yoichi" uniqKey="Watabe Y" first="Yoichi" last="Watabe">Yoichi Watabe</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Soil Mechanics and Geo-environment Division, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author><author><name sortKey="Tanaka, Masanori" sort="Tanaka, Masanori" uniqKey="Tanaka M" first="Masanori" last="Tanaka">Masanori Tanaka</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Soil Mechanics and Geo-environment Division, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author><author><name sortKey="Tanaka, Hiroyuki" sort="Tanaka, Hiroyuki" uniqKey="Tanaka H" first="Hiroyuki" last="Tanaka">Hiroyuki Tanaka</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geotechnical and Structural Department, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>3 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author><author><name sortKey="Tsuchida, Takashi" sort="Tsuchida, Takashi" uniqKey="Tsuchida T" first="Takashi" last="Tsuchida">Takashi Tsuchida</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Soil Mechanics and Geo-environment Division, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">03-0259320</idno><date when="2003">2003</date><idno type="stanalyst">PASCAL 03-0259320 INIST</idno><idno type="RBID">Pascal:03-0259320</idno><idno type="wicri:Area/PascalFrancis/Corpus">000613</idno><idno type="wicri:Area/PascalFrancis/Curation">000178</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000550</idno><idno type="wicri:Area/Main/Merge">001864</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">K<sub>0</sub>-consolidation in a triaxial cell and evaluation of in-situ K<sub>0</sub> for marine clays with various characteristics</title><author><name sortKey="Watabe, Yoichi" sort="Watabe, Yoichi" uniqKey="Watabe Y" first="Yoichi" last="Watabe">Yoichi Watabe</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Soil Mechanics and Geo-environment Division, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author><author><name sortKey="Tanaka, Masanori" sort="Tanaka, Masanori" uniqKey="Tanaka M" first="Masanori" last="Tanaka">Masanori Tanaka</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Soil Mechanics and Geo-environment Division, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author><author><name sortKey="Tanaka, Hiroyuki" sort="Tanaka, Hiroyuki" uniqKey="Tanaka H" first="Hiroyuki" last="Tanaka">Hiroyuki Tanaka</name><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Geotechnical and Structural Department, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>3 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author><author><name sortKey="Tsuchida, Takashi" sort="Tsuchida, Takashi" uniqKey="Tsuchida T" first="Takashi" last="Tsuchida">Takashi Tsuchida</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Soil Mechanics and Geo-environment Division, Port and Airport Research Institute</s1><s2>3-1-1, Nagase, Yokosuka 239-0826</s2><s3>JPN</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Japon</country><wicri:noRegion>3-1-1, Nagase, Yokosuka 239-0826</wicri:noRegion></affiliation></author></analytic><series><title level="j" type="main">Soils and foundations</title><title level="j" type="abbreviated">Soils found.</title><idno type="ISSN">0038-0806</idno><imprint><date when="2003">2003</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Soils and foundations</title><title level="j" type="abbreviated">Soils found.</title><idno type="ISSN">0038-0806</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Constitutive equation</term><term>Dilatometry</term><term>Earth pressure</term><term>Evaluation</term><term>Experimental protocol</term><term>Lateral load</term><term>Marine clay</term><term>Overconsolidated soil</term><term>Property of soil</term><term>Soil consolidation</term><term>Soil test</term><term>Stress path</term><term>Stress strain relation</term><term>Triaxial test</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Essai sol</term><term>Consolidation sol</term><term>Argile marine</term><term>Essai triaxial</term><term>Caractéristique sol</term><term>Poussée terre</term><term>Charge latérale</term><term>Dilatométrie</term><term>Equation constitutive</term><term>Sol surconsolidé</term><term>Protocole expérimental</term><term>Evaluation</term><term>Chemin contrainte</term><term>Relation contrainte déformation</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A series of K<sub>0</sub>-consolidation tests in a triaxial cell was carried out for marine clays collected from different areas in the world in order to investigate the behavior during K<sub>o</sub>-consolidation tests and evaluate K<sub>o</sub>-values that are required for laboratory tests with recompression techniques, FEM analysis using elasto-plastic constitutive equations, etc. It was confirmed that the famous equation K<sub>oNc</sub> "' 1 - sin Ø'is useful; however, the definition of Ø'should be concerned. In the case using Ø' corresponding to a critical state line, i.e. (q/p)<sub>max</sub>, the equation underestimates K<sub>oNc</sub> by 0.05; in contrast, in the case using Ø' corresponding to a peak strength, i.e. (q)<sub>max</sub>, the equation overestimates K<sub>oNc</sub> by 0.05. This study proposes a procedure for estimating the in-situ K<sub>o</sub>-value. For a representative undisturbed clay sample, Ko-consolidation and K<sub>o</sub>-overconsolidation tests (i.e. SHANSEP test) are consecutively carried out to obtain the K-OCR relationship. Using the profile of OCR obtained from a series of oedometer tests, the K-value corresponding to the OCR can be calculated as the in-situ K<sub>o</sub>. The K<sub>o</sub>-values obtained from both the K<sub>o</sub>-overconsolidation test corresponding to the OCR in the laboratory and the flat dilatometer test (DMT test) in the field compared well.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><country name="Japon"><noRegion><name sortKey="Watabe, Yoichi" sort="Watabe, Yoichi" uniqKey="Watabe Y" first="Yoichi" last="Watabe">Yoichi Watabe</name></noRegion><name sortKey="Tanaka, Hiroyuki" sort="Tanaka, Hiroyuki" uniqKey="Tanaka H" first="Hiroyuki" last="Tanaka">Hiroyuki Tanaka</name><name sortKey="Tanaka, Masanori" sort="Tanaka, Masanori" uniqKey="Tanaka M" first="Masanori" last="Tanaka">Masanori Tanaka</name><name sortKey="Tsuchida, Takashi" sort="Tsuchida, Takashi" uniqKey="Tsuchida T" first="Takashi" last="Tsuchida">Takashi Tsuchida</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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