Hydro-mechanical behavior of expansive soils with different dry densities over a wide suction range
Many civil engineering projects are related to hydro-mechanical behavior of unsaturated expansive soils over a wide suction range, which was investigated by imposing suctions on an expansive soil using the axis-translation technique and the vapor equilibrium technique with saturated salt solution in...
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| Veröffentlicht in: | Acta geotechnica 2020, Vol.15 (1), p.265-278 |
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| creator | Zhang, Junran Niu, Geng Li, Xuchang Sun, De’an |
| description | Many civil engineering projects are related to hydro-mechanical behavior of unsaturated expansive soils over a wide suction range, which was investigated by imposing suctions on an expansive soil using the axis-translation technique and the vapor equilibrium technique with saturated salt solution in this paper. Water retention test results on compacted expansive soil show that void ratio keeps decreasing along with increasing the suction in an entire suction range (from 0 to about 1000 MPa), and the soil–water retention curves in terms of gravimetric water content versus suction relation are independent of the dry density or void ratio when the suction is higher than 250 kPa. Therefore, the mechanical tests on an unsaturated expansive soil with constant water content can be considered as that at constant suction when suction is higher than 250 kPa. The stress–strain behavior at different constant suctions in the entire suction range measured from triaxial shear tests under a constant net confining stress shows that the strength and stress–strain curve of specimens with higher suction are higher than those with lower suction and the higher the suction, the more dilative the specimens. The strain softening appears when the suction is higher than a specific value and the appearance of strain softening is related to the sliding surface. The tested compacted expansive soil with extremely high suctions (i.e., 38.0 and 368 MPa) shows distinct peak strength, strain-softening and dilative behavior. |
| doi_str_mv | 10.1007/s11440-019-00874-y |
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Water retention test results on compacted expansive soil show that void ratio keeps decreasing along with increasing the suction in an entire suction range (from 0 to about 1000 MPa), and the soil–water retention curves in terms of gravimetric water content versus suction relation are independent of the dry density or void ratio when the suction is higher than 250 kPa. Therefore, the mechanical tests on an unsaturated expansive soil with constant water content can be considered as that at constant suction when suction is higher than 250 kPa. The stress–strain behavior at different constant suctions in the entire suction range measured from triaxial shear tests under a constant net confining stress shows that the strength and stress–strain curve of specimens with higher suction are higher than those with lower suction and the higher the suction, the more dilative the specimens. The strain softening appears when the suction is higher than a specific value and the appearance of strain softening is related to the sliding surface. The tested compacted expansive soil with extremely high suctions (i.e., 38.0 and 368 MPa) shows distinct peak strength, strain-softening and dilative behavior.</description><identifier>ISSN: 1861-1125</identifier><identifier>EISSN: 1861-1133</identifier><identifier>DOI: 10.1007/s11440-019-00874-y</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Civil engineering ; Compacted soils ; Complex Fluids and Microfluidics ; Dry density ; Engineering ; Expansion ; Expansive soils ; Foundations ; Geoengineering ; Geotechnical Engineering & Applied Earth Sciences ; Gravimetry ; Hydraulics ; Mechanical properties ; Mechanical tests ; Moisture content ; Plastic deformation ; Research Paper ; Retention ; Saline solutions ; Shear tests ; Soft and Granular Matter ; Softening ; Soil ; Soil compaction ; Soil investigations ; Soil mechanics ; Soil Science & Conservation ; Soil suction ; Soil water ; Solid Mechanics ; Strain ; Stress-strain curves ; Unsaturated soils ; Void ratio ; Water content</subject><ispartof>Acta geotechnica, 2020, Vol.15 (1), p.265-278</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2019</rights><rights>Acta Geotechnica is a copyright of Springer, (2019). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a342t-da25b2d2540d572d74fb468e4e5228434732203dc30d5c9259fcd56a8d46a403</citedby><cites>FETCH-LOGICAL-a342t-da25b2d2540d572d74fb468e4e5228434732203dc30d5c9259fcd56a8d46a403</cites><orcidid>0000-0002-7543-3797</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11440-019-00874-y$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11440-019-00874-y$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Zhang, Junran</creatorcontrib><creatorcontrib>Niu, Geng</creatorcontrib><creatorcontrib>Li, Xuchang</creatorcontrib><creatorcontrib>Sun, De’an</creatorcontrib><title>Hydro-mechanical behavior of expansive soils with different dry densities over a wide suction range</title><title>Acta geotechnica</title><addtitle>Acta Geotech</addtitle><description>Many civil engineering projects are related to hydro-mechanical behavior of unsaturated expansive soils over a wide suction range, which was investigated by imposing suctions on an expansive soil using the axis-translation technique and the vapor equilibrium technique with saturated salt solution in this paper. Water retention test results on compacted expansive soil show that void ratio keeps decreasing along with increasing the suction in an entire suction range (from 0 to about 1000 MPa), and the soil–water retention curves in terms of gravimetric water content versus suction relation are independent of the dry density or void ratio when the suction is higher than 250 kPa. Therefore, the mechanical tests on an unsaturated expansive soil with constant water content can be considered as that at constant suction when suction is higher than 250 kPa. The stress–strain behavior at different constant suctions in the entire suction range measured from triaxial shear tests under a constant net confining stress shows that the strength and stress–strain curve of specimens with higher suction are higher than those with lower suction and the higher the suction, the more dilative the specimens. The strain softening appears when the suction is higher than a specific value and the appearance of strain softening is related to the sliding surface. The tested compacted expansive soil with extremely high suctions (i.e., 38.0 and 368 MPa) shows distinct peak strength, strain-softening and dilative behavior.</description><subject>Civil engineering</subject><subject>Compacted soils</subject><subject>Complex Fluids and Microfluidics</subject><subject>Dry density</subject><subject>Engineering</subject><subject>Expansion</subject><subject>Expansive soils</subject><subject>Foundations</subject><subject>Geoengineering</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Gravimetry</subject><subject>Hydraulics</subject><subject>Mechanical properties</subject><subject>Mechanical tests</subject><subject>Moisture content</subject><subject>Plastic deformation</subject><subject>Research Paper</subject><subject>Retention</subject><subject>Saline solutions</subject><subject>Shear tests</subject><subject>Soft and Granular Matter</subject><subject>Softening</subject><subject>Soil</subject><subject>Soil compaction</subject><subject>Soil investigations</subject><subject>Soil mechanics</subject><subject>Soil Science & Conservation</subject><subject>Soil suction</subject><subject>Soil water</subject><subject>Solid Mechanics</subject><subject>Strain</subject><subject>Stress-strain curves</subject><subject>Unsaturated soils</subject><subject>Void ratio</subject><subject>Water content</subject><issn>1861-1125</issn><issn>1861-1133</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp9kE1LAzEQhoMoWKt_wFPAczSf-3GUolYoeOk9pMnEprSbmmyr---NrujN0wzM884wD0LXjN4ySuu7zJiUlFDWEkqbWpLhBE1YUzHCmBCnvz1X5-gi5w2lleCymiA7H1yKZAd2bbpgzRavYG2OISYcPYaPvelyOALOMWwzfg_9GrvgPSToeuzSgB0UoA-QcTxCwqYwruAH24fY4WS6V7hEZ95sM1z91ClaPj4sZ3OyeHl6nt0viBGS98QZrlbccSWpUzV3tfQrWTUgQXHeSCFrwTkVzooyty1XrbdOVaZxsjKSiim6GdfuU3w7QO71Jh5SVy5qLkq0blvRFoqPlE0x5wRe71PYmTRoRvWXSz261MWl_naphxISYygXuHyU_lb_k_oEPcd4Hg</recordid><startdate>2020</startdate><enddate>2020</enddate><creator>Zhang, Junran</creator><creator>Niu, Geng</creator><creator>Li, Xuchang</creator><creator>Sun, De’an</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TN</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FR3</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L.G</scope><scope>L6V</scope><scope>M2P</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><orcidid>https://orcid.org/0000-0002-7543-3797</orcidid></search><sort><creationdate>2020</creationdate><title>Hydro-mechanical behavior of expansive soils with different dry densities over a wide suction range</title><author>Zhang, Junran ; Niu, Geng ; Li, Xuchang ; Sun, De’an</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a342t-da25b2d2540d572d74fb468e4e5228434732203dc30d5c9259fcd56a8d46a403</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Civil engineering</topic><topic>Compacted soils</topic><topic>Complex Fluids and Microfluidics</topic><topic>Dry density</topic><topic>Engineering</topic><topic>Expansion</topic><topic>Expansive soils</topic><topic>Foundations</topic><topic>Geoengineering</topic><topic>Geotechnical Engineering & Applied Earth Sciences</topic><topic>Gravimetry</topic><topic>Hydraulics</topic><topic>Mechanical properties</topic><topic>Mechanical tests</topic><topic>Moisture content</topic><topic>Plastic deformation</topic><topic>Research Paper</topic><topic>Retention</topic><topic>Saline solutions</topic><topic>Shear tests</topic><topic>Soft and Granular Matter</topic><topic>Softening</topic><topic>Soil</topic><topic>Soil compaction</topic><topic>Soil investigations</topic><topic>Soil mechanics</topic><topic>Soil Science & Conservation</topic><topic>Soil suction</topic><topic>Soil water</topic><topic>Solid Mechanics</topic><topic>Strain</topic><topic>Stress-strain curves</topic><topic>Unsaturated soils</topic><topic>Void ratio</topic><topic>Water content</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Junran</creatorcontrib><creatorcontrib>Niu, Geng</creatorcontrib><creatorcontrib>Li, Xuchang</creatorcontrib><creatorcontrib>Sun, De’an</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</collection><collection>Science Database</collection><collection>Engineering Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Acta geotechnica</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Junran</au><au>Niu, Geng</au><au>Li, Xuchang</au><au>Sun, De’an</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hydro-mechanical behavior of expansive soils with different dry densities over a wide suction range</atitle><jtitle>Acta geotechnica</jtitle><stitle>Acta Geotech</stitle><date>2020</date><risdate>2020</risdate><volume>15</volume><issue>1</issue><spage>265</spage><epage>278</epage><pages>265-278</pages><issn>1861-1125</issn><eissn>1861-1133</eissn><abstract>Many civil engineering projects are related to hydro-mechanical behavior of unsaturated expansive soils over a wide suction range, which was investigated by imposing suctions on an expansive soil using the axis-translation technique and the vapor equilibrium technique with saturated salt solution in this paper. Water retention test results on compacted expansive soil show that void ratio keeps decreasing along with increasing the suction in an entire suction range (from 0 to about 1000 MPa), and the soil–water retention curves in terms of gravimetric water content versus suction relation are independent of the dry density or void ratio when the suction is higher than 250 kPa. Therefore, the mechanical tests on an unsaturated expansive soil with constant water content can be considered as that at constant suction when suction is higher than 250 kPa. The stress–strain behavior at different constant suctions in the entire suction range measured from triaxial shear tests under a constant net confining stress shows that the strength and stress–strain curve of specimens with higher suction are higher than those with lower suction and the higher the suction, the more dilative the specimens. The strain softening appears when the suction is higher than a specific value and the appearance of strain softening is related to the sliding surface. The tested compacted expansive soil with extremely high suctions (i.e., 38.0 and 368 MPa) shows distinct peak strength, strain-softening and dilative behavior.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s11440-019-00874-y</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-7543-3797</orcidid></addata></record> |
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| subjects | Civil engineering Compacted soils Complex Fluids and Microfluidics Dry density Engineering Expansion Expansive soils Foundations Geoengineering Geotechnical Engineering & Applied Earth Sciences Gravimetry Hydraulics Mechanical properties Mechanical tests Moisture content Plastic deformation Research Paper Retention Saline solutions Shear tests Soft and Granular Matter Softening Soil Soil compaction Soil investigations Soil mechanics Soil Science & Conservation Soil suction Soil water Solid Mechanics Strain Stress-strain curves Unsaturated soils Void ratio Water content |
| title | Hydro-mechanical behavior of expansive soils with different dry densities over a wide suction range |
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