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Creep Investigation on Shale-Like Material with Preexisting Fissure under Coupling Temperatures and Confining Pressures
In order to investigate the influence of temperature, confining pressure, and preexisting fissure on creep characteristics of rock mass, multistage creep experiments were performed on shale-like material, with preexisting fissure under different temperatures and confining pressures. The results show...
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Published in: | Advances in civil engineering 2019, Vol.2019 (2019), p.1-10 |
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description | In order to investigate the influence of temperature, confining pressure, and preexisting fissure on creep characteristics of rock mass, multistage creep experiments were performed on shale-like material, with preexisting fissure under different temperatures and confining pressures. The results showed that new microcracks generated and propagated with the increase of temperature in both uniaxial and triaxial creep experiments, and the generation and propagation were most pronounced at 60°C and least at 20∼50°C in uniaxial creep experiments. The generation and propagation were restricted by confining pressure. Temperature had less influence on the creep strain rate in triaxial creep experiment, whereas it had a significant influence on the steady-state creep rate in uniaxial creep experiment. The influence of confining pressure on the steady-state creep rate was slight when confining pressure was 1 MPa, whereas it was obvious when confining pressure was 3∼7 MPa. The closure of preexisting fissure promoted the creep strain rate, and the closure was incomplete when confining pressure was below 3 MPa, whereas it was complete when confining pressure at 5 and 7 MPa. |
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The results showed that new microcracks generated and propagated with the increase of temperature in both uniaxial and triaxial creep experiments, and the generation and propagation were most pronounced at 60°C and least at 20∼50°C in uniaxial creep experiments. The generation and propagation were restricted by confining pressure. Temperature had less influence on the creep strain rate in triaxial creep experiment, whereas it had a significant influence on the steady-state creep rate in uniaxial creep experiment. The influence of confining pressure on the steady-state creep rate was slight when confining pressure was 1 MPa, whereas it was obvious when confining pressure was 3∼7 MPa. The closure of preexisting fissure promoted the creep strain rate, and the closure was incomplete when confining pressure was below 3 MPa, whereas it was complete when confining pressure at 5 and 7 MPa.</description><identifier>ISSN: 1687-8086</identifier><identifier>EISSN: 1687-8094</identifier><identifier>DOI: 10.1155/2019/7861305</identifier><language>eng</language><publisher>Cairo, Egypt: Hindawi Publishing Corporation</publisher><subject>Civil engineering ; Coal mining ; Confining ; Creep rate ; Creep tests ; Engineering ; Experiments ; Mechanics ; Microcracks ; Phase transitions ; Propagation ; Rock masses ; Science ; Steady state creep ; Stone ; Strain rate ; Temperature</subject><ispartof>Advances in civil engineering, 2019, Vol.2019 (2019), p.1-10</ispartof><rights>Copyright © 2019 Yongyan Wang et al.</rights><rights>Copyright © 2019 Yongyan Wang et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. http://creativecommons.org/licenses/by/4.0</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c502t-50c13d4ccf9d1f2be07e7cdb5f52a07669a823ef9dd63b45de9e82da518d40af3</citedby><cites>FETCH-LOGICAL-c502t-50c13d4ccf9d1f2be07e7cdb5f52a07669a823ef9dd63b45de9e82da518d40af3</cites><orcidid>0000-0002-9191-7628 ; 0000-0003-4753-3448</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.proquest.com/docview/2305724632/fulltextPDF?pq-origsite=primo$$EPDF$$P50$$Gproquest$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2305724632?pq-origsite=primo$$EHTML$$P50$$Gproquest$$Hfree_for_read</linktohtml><link.rule.ids>314,780,784,4024,25753,27923,27924,27925,37012,44590,75126</link.rule.ids></links><search><contributor>Vieira, Castorina S.</contributor><contributor>Castorina S Vieira</contributor><creatorcontrib>Wang, Yongyan</creatorcontrib><creatorcontrib>Shi, Xiao</creatorcontrib><creatorcontrib>Wang, Hongwei</creatorcontrib><title>Creep Investigation on Shale-Like Material with Preexisting Fissure under Coupling Temperatures and Confining Pressures</title><title>Advances in civil engineering</title><description>In order to investigate the influence of temperature, confining pressure, and preexisting fissure on creep characteristics of rock mass, multistage creep experiments were performed on shale-like material, with preexisting fissure under different temperatures and confining pressures. The results showed that new microcracks generated and propagated with the increase of temperature in both uniaxial and triaxial creep experiments, and the generation and propagation were most pronounced at 60°C and least at 20∼50°C in uniaxial creep experiments. The generation and propagation were restricted by confining pressure. Temperature had less influence on the creep strain rate in triaxial creep experiment, whereas it had a significant influence on the steady-state creep rate in uniaxial creep experiment. The influence of confining pressure on the steady-state creep rate was slight when confining pressure was 1 MPa, whereas it was obvious when confining pressure was 3∼7 MPa. The closure of preexisting fissure promoted the creep strain rate, and the closure was incomplete when confining pressure was below 3 MPa, whereas it was complete when confining pressure at 5 and 7 MPa.</description><subject>Civil engineering</subject><subject>Coal mining</subject><subject>Confining</subject><subject>Creep rate</subject><subject>Creep tests</subject><subject>Engineering</subject><subject>Experiments</subject><subject>Mechanics</subject><subject>Microcracks</subject><subject>Phase transitions</subject><subject>Propagation</subject><subject>Rock masses</subject><subject>Science</subject><subject>Steady state creep</subject><subject>Stone</subject><subject>Strain rate</subject><subject>Temperature</subject><issn>1687-8086</issn><issn>1687-8094</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>PIMPY</sourceid><sourceid>DOA</sourceid><recordid>eNqFkc1r3DAQxU1poSHJLeci6DF1IsmSJR_Lko-FDSk0OYtZa7Sr1JEdye42_321cUiOAYHEvN88DfOK4oTRM8akPOeUNedK16yi8lNxwGqtSk0b8fntreuvxXFKfk2FUFxzzg6K3SIiDmQZ_mIa_QZG3weSz-8tdFiu_B8kNzBi9NCRnR-35Ffm__nMhg259ClNEckULEay6Keh25fv8HHACGOWEoFgsxKcD3spd7-0pKPii4Mu4fHrfVjcX17cLa7L1e3VcvFzVbaS8rGUtGWVFW3rGsscXyNVqFq7lk5yoKquG9C8wqzauloLabFBzS1Ipq2g4KrDYjn72h4ezBD9I8Rn04M3L4U-bgzE0bcdGqYqYXmj6ha4EAIApa601tA4sA509vo-ew2xf5ryvsxDP8WQxzc8L11xUVc8Uz9mqo19ShHd26-Mmn1SZp-UeU0q46czvvXBws5_RH-bacwMOninGVMsz_sfmt2ehw</recordid><startdate>2019</startdate><enddate>2019</enddate><creator>Wang, Yongyan</creator><creator>Shi, Xiao</creator><creator>Wang, Hongwei</creator><general>Hindawi Publishing Corporation</general><general>Hindawi</general><general>Hindawi Limited</general><scope>ADJCN</scope><scope>AHFXO</scope><scope>RHU</scope><scope>RHW</scope><scope>RHX</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>CWDGH</scope><scope>DWQXO</scope><scope>FR3</scope><scope>HCIFZ</scope><scope>KR7</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-9191-7628</orcidid><orcidid>https://orcid.org/0000-0003-4753-3448</orcidid></search><sort><creationdate>2019</creationdate><title>Creep Investigation on Shale-Like Material with Preexisting Fissure under Coupling Temperatures and Confining Pressures</title><author>Wang, Yongyan ; Shi, Xiao ; Wang, Hongwei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c502t-50c13d4ccf9d1f2be07e7cdb5f52a07669a823ef9dd63b45de9e82da518d40af3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Civil engineering</topic><topic>Coal mining</topic><topic>Confining</topic><topic>Creep rate</topic><topic>Creep tests</topic><topic>Engineering</topic><topic>Experiments</topic><topic>Mechanics</topic><topic>Microcracks</topic><topic>Phase transitions</topic><topic>Propagation</topic><topic>Rock masses</topic><topic>Science</topic><topic>Steady state creep</topic><topic>Stone</topic><topic>Strain rate</topic><topic>Temperature</topic><toplevel>online_resources</toplevel><creatorcontrib>Wang, Yongyan</creatorcontrib><creatorcontrib>Shi, Xiao</creatorcontrib><creatorcontrib>Wang, Hongwei</creatorcontrib><collection>الدوريات العلمية والإحصائية - e-Marefa Academic and Statistical Periodicals</collection><collection>معرفة - المحتوى العربي الأكاديمي المتكامل - e-Marefa Academic Complete</collection><collection>Hindawi Publishing Complete</collection><collection>Hindawi Publishing Subscription Journals</collection><collection>Hindawi Publishing Open Access Journals</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni)</collection><collection>ProQuest Central</collection><collection>ProQuest Central Essentials</collection><collection>AUTh Library subscriptions: ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>Middle East & Africa Database</collection><collection>ProQuest Central</collection><collection>Engineering Research Database</collection><collection>SciTech Premium Collection</collection><collection>Civil Engineering Abstracts</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Publicly Available Content (ProQuest)</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><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Advances in civil engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Yongyan</au><au>Shi, Xiao</au><au>Wang, Hongwei</au><au>Vieira, Castorina S.</au><au>Castorina S Vieira</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Creep Investigation on Shale-Like Material with Preexisting Fissure under Coupling Temperatures and Confining Pressures</atitle><jtitle>Advances in civil engineering</jtitle><date>2019</date><risdate>2019</risdate><volume>2019</volume><issue>2019</issue><spage>1</spage><epage>10</epage><pages>1-10</pages><issn>1687-8086</issn><eissn>1687-8094</eissn><abstract>In order to investigate the influence of temperature, confining pressure, and preexisting fissure on creep characteristics of rock mass, multistage creep experiments were performed on shale-like material, with preexisting fissure under different temperatures and confining pressures. The results showed that new microcracks generated and propagated with the increase of temperature in both uniaxial and triaxial creep experiments, and the generation and propagation were most pronounced at 60°C and least at 20∼50°C in uniaxial creep experiments. The generation and propagation were restricted by confining pressure. Temperature had less influence on the creep strain rate in triaxial creep experiment, whereas it had a significant influence on the steady-state creep rate in uniaxial creep experiment. The influence of confining pressure on the steady-state creep rate was slight when confining pressure was 1 MPa, whereas it was obvious when confining pressure was 3∼7 MPa. 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subjects | Civil engineering Coal mining Confining Creep rate Creep tests Engineering Experiments Mechanics Microcracks Phase transitions Propagation Rock masses Science Steady state creep Stone Strain rate Temperature |
title | Creep Investigation on Shale-Like Material with Preexisting Fissure under Coupling Temperatures and Confining Pressures |
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