Experimental Study on Failure Characteristics of Schist Under Unloading Condition
The mechanical properties of rock under unloading condition have significant differences with those under conventional loading condition. To investigate the failure characteristics of schist under complex stress state, uniaxial and trixial compression and unloading confining pressure tests have been...
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| Veröffentlicht in: | Geotechnical and geological engineering 2018-04, Vol.36 (2), p.905-913 |
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| creator | Yao, Hua-yan Jia, Shan-po Li, Hong-guo |
| description | The mechanical properties of rock under unloading condition have significant differences with those under conventional loading condition. To investigate the failure characteristics of schist under complex stress state, uniaxial and trixial compression and unloading confining pressure tests have been carried out on samples in the paper. The results show that the rock samples failed in coupling mode of shear and tension under uniaxial compression, and failed in shear mode under conventional trixial compression. However, the failure modes of the samples can be classified as shear, multiple fracturing, and multiple extension, and the strength of schist is closely related with the failure mode under unloading confining condition. For the unloading condition, the peak strengths of schist samples with shear failure mode are close to those under conventional trixial compression, but the peak strengths with multiple fracturing or multiple extension mode are much higher than those under trixial compression. The internal structure characteristics and stress paths were found to have major influences on the failure modes of schist. Therefore, the failure modes must be considered when the strength characteristics of schist are investigated. |
| doi_str_mv | 10.1007/s10706-017-0364-z |
| format | Article |
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To investigate the failure characteristics of schist under complex stress state, uniaxial and trixial compression and unloading confining pressure tests have been carried out on samples in the paper. The results show that the rock samples failed in coupling mode of shear and tension under uniaxial compression, and failed in shear mode under conventional trixial compression. However, the failure modes of the samples can be classified as shear, multiple fracturing, and multiple extension, and the strength of schist is closely related with the failure mode under unloading confining condition. For the unloading condition, the peak strengths of schist samples with shear failure mode are close to those under conventional trixial compression, but the peak strengths with multiple fracturing or multiple extension mode are much higher than those under trixial compression. The internal structure characteristics and stress paths were found to have major influences on the failure modes of schist. Therefore, the failure modes must be considered when the strength characteristics of schist are investigated.</description><identifier>ISSN: 0960-3182</identifier><identifier>EISSN: 1573-1529</identifier><identifier>DOI: 10.1007/s10706-017-0364-z</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Civil Engineering ; Compression ; Compression tests ; Confining ; Earth and Environmental Science ; Earth Sciences ; Failure modes ; Fracturing ; Geotechnical Engineering & Applied Earth Sciences ; Hydrogeology ; Mechanical properties ; Modes ; Original Paper ; Rock properties ; Rocks ; Schist ; Schists ; Sediment samples ; Shear ; Terrestrial Pollution ; Unloading ; Waste Management/Waste Technology</subject><ispartof>Geotechnical and geological engineering, 2018-04, Vol.36 (2), p.905-913</ispartof><rights>Springer International Publishing AG 2017</rights><rights>Geotechnical and Geological Engineering is a copyright of Springer, (2017). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a339t-7d72c5a9be5d4ed2d7e33191279349872871cc6e6c2a8a952a0df3e4e47948a73</citedby><cites>FETCH-LOGICAL-a339t-7d72c5a9be5d4ed2d7e33191279349872871cc6e6c2a8a952a0df3e4e47948a73</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10706-017-0364-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10706-017-0364-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Yao, Hua-yan</creatorcontrib><creatorcontrib>Jia, Shan-po</creatorcontrib><creatorcontrib>Li, Hong-guo</creatorcontrib><title>Experimental Study on Failure Characteristics of Schist Under Unloading Condition</title><title>Geotechnical and geological engineering</title><addtitle>Geotech Geol Eng</addtitle><description>The mechanical properties of rock under unloading condition have significant differences with those under conventional loading condition. To investigate the failure characteristics of schist under complex stress state, uniaxial and trixial compression and unloading confining pressure tests have been carried out on samples in the paper. The results show that the rock samples failed in coupling mode of shear and tension under uniaxial compression, and failed in shear mode under conventional trixial compression. However, the failure modes of the samples can be classified as shear, multiple fracturing, and multiple extension, and the strength of schist is closely related with the failure mode under unloading confining condition. For the unloading condition, the peak strengths of schist samples with shear failure mode are close to those under conventional trixial compression, but the peak strengths with multiple fracturing or multiple extension mode are much higher than those under trixial compression. The internal structure characteristics and stress paths were found to have major influences on the failure modes of schist. Therefore, the failure modes must be considered when the strength characteristics of schist are investigated.</description><subject>Civil Engineering</subject><subject>Compression</subject><subject>Compression tests</subject><subject>Confining</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Failure modes</subject><subject>Fracturing</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Hydrogeology</subject><subject>Mechanical properties</subject><subject>Modes</subject><subject>Original Paper</subject><subject>Rock properties</subject><subject>Rocks</subject><subject>Schist</subject><subject>Schists</subject><subject>Sediment samples</subject><subject>Shear</subject><subject>Terrestrial Pollution</subject><subject>Unloading</subject><subject>Waste Management/Waste Technology</subject><issn>0960-3182</issn><issn>1573-1529</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kMFKAzEQhoMoWKsP4C3gOTpJdjebo5RWhYJI7TnEJNtuWZOa7ILt05uygicvMwx8_wzzIXRL4Z4CiIdEQUBFgAoCvCrI8QxNaCk4oSWT52gCsgLCac0u0VVKOwBgFdAJept_711sP53vdYdX_WAPOHi80G03RIdnWx216TOR-tYkHBq8Mts84LW3LubaBW1bv8Gz4G3bt8Ffo4tGd8nd_PYpWi_m77Nnsnx9epk9LonmXPZEWMFMqeWHK23hLLPCcU4lZULyQtaC1YIaU7nKMF1rWTINtuGucIWQRa0Fn6K7ce8-hq_BpV7twhB9PqkYK2VVCJAsU3SkTAwpRdeoff5Wx4OioE7m1GhOZXPqZE4dc4aNmZRZv3Hxb_P_oR--o3FF</recordid><startdate>20180401</startdate><enddate>20180401</enddate><creator>Yao, Hua-yan</creator><creator>Jia, Shan-po</creator><creator>Li, Hong-guo</creator><general>Springer International Publishing</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TN</scope><scope>7UA</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AEUYN</scope><scope>AFKRA</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>H96</scope><scope>HCIFZ</scope><scope>L.G</scope><scope>L6V</scope><scope>M7S</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope></search><sort><creationdate>20180401</creationdate><title>Experimental Study on Failure Characteristics of Schist Under Unloading Condition</title><author>Yao, Hua-yan ; Jia, Shan-po ; Li, Hong-guo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a339t-7d72c5a9be5d4ed2d7e33191279349872871cc6e6c2a8a952a0df3e4e47948a73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Civil Engineering</topic><topic>Compression</topic><topic>Compression tests</topic><topic>Confining</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Failure modes</topic><topic>Fracturing</topic><topic>Geotechnical Engineering & Applied Earth Sciences</topic><topic>Hydrogeology</topic><topic>Mechanical properties</topic><topic>Modes</topic><topic>Original Paper</topic><topic>Rock properties</topic><topic>Rocks</topic><topic>Schist</topic><topic>Schists</topic><topic>Sediment samples</topic><topic>Shear</topic><topic>Terrestrial Pollution</topic><topic>Unloading</topic><topic>Waste Management/Waste Technology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yao, Hua-yan</creatorcontrib><creatorcontrib>Jia, Shan-po</creatorcontrib><creatorcontrib>Li, Hong-guo</creatorcontrib><collection>CrossRef</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</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>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>ProQuest Engineering Collection</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>ProQuest Central China</collection><collection>Engineering Collection</collection><jtitle>Geotechnical and geological engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yao, Hua-yan</au><au>Jia, Shan-po</au><au>Li, Hong-guo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental Study on Failure Characteristics of Schist Under Unloading Condition</atitle><jtitle>Geotechnical and geological engineering</jtitle><stitle>Geotech Geol Eng</stitle><date>2018-04-01</date><risdate>2018</risdate><volume>36</volume><issue>2</issue><spage>905</spage><epage>913</epage><pages>905-913</pages><issn>0960-3182</issn><eissn>1573-1529</eissn><abstract>The mechanical properties of rock under unloading condition have significant differences with those under conventional loading condition. To investigate the failure characteristics of schist under complex stress state, uniaxial and trixial compression and unloading confining pressure tests have been carried out on samples in the paper. The results show that the rock samples failed in coupling mode of shear and tension under uniaxial compression, and failed in shear mode under conventional trixial compression. However, the failure modes of the samples can be classified as shear, multiple fracturing, and multiple extension, and the strength of schist is closely related with the failure mode under unloading confining condition. For the unloading condition, the peak strengths of schist samples with shear failure mode are close to those under conventional trixial compression, but the peak strengths with multiple fracturing or multiple extension mode are much higher than those under trixial compression. The internal structure characteristics and stress paths were found to have major influences on the failure modes of schist. Therefore, the failure modes must be considered when the strength characteristics of schist are investigated.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10706-017-0364-z</doi><tpages>9</tpages></addata></record> |
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| subjects | Civil Engineering Compression Compression tests Confining Earth and Environmental Science Earth Sciences Failure modes Fracturing Geotechnical Engineering & Applied Earth Sciences Hydrogeology Mechanical properties Modes Original Paper Rock properties Rocks Schist Schists Sediment samples Shear Terrestrial Pollution Unloading Waste Management/Waste Technology |
| title | Experimental Study on Failure Characteristics of Schist Under Unloading Condition |
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