DEM Modeling of Interaction Between the Propagating Fracture and Multiple Pre-existing Cemented Discontinuities in Shale
It is known that pre-existing discontinuities can act as planes of weakness that divert the propagating fractures in rocks, but previous studies have mostly focused on the interaction between the propagating fractures and a single pre-existing discontinuity. The influences of multiple pre-existing c...
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| Veröffentlicht in: | Rock mechanics and rock engineering 2019-06, Vol.52 (6), p.1993-2001 |
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| container_end_page | 2001 |
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| container_issue | 6 |
| container_start_page | 1993 |
| container_title | Rock mechanics and rock engineering |
| container_volume | 52 |
| creator | Liu, Zhina Xu, Haoran Zhao, Zhihong Chen, Zhaowei |
| description | It is known that pre-existing discontinuities can act as planes of weakness that divert the propagating fractures in rocks, but previous studies have mostly focused on the interaction between the propagating fractures and a single pre-existing discontinuity. The influences of multiple pre-existing cemented discontinuities, such as calcite veins and bedding planes, on the fracture propagation still remain poorly understood. In this study, particle-based discrete element method was used to characterize the fracturing behavior of shale containing multiple cemented veins and bedding planes through numerical semi-circular bend (SCB) tests. Model results show that geometrical and mechanical properties of multiple pre-existing cemented discontinuities can significantly affect the interaction modes between the induced tensile fractures and pre-existing cemented discontinuities, as well as the mode I fracture toughness of shale. The typical mechanical interaction modes between the induced tensile fractures and the multiple pre-existing cemented discontinuities and the corresponding conditions are given. The effect of pre-coexisting discontinuities on the peak loads for shale during SCB tests is also discussed. |
| doi_str_mv | 10.1007/s00603-018-1699-3 |
| format | Article |
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The influences of multiple pre-existing cemented discontinuities, such as calcite veins and bedding planes, on the fracture propagation still remain poorly understood. In this study, particle-based discrete element method was used to characterize the fracturing behavior of shale containing multiple cemented veins and bedding planes through numerical semi-circular bend (SCB) tests. Model results show that geometrical and mechanical properties of multiple pre-existing cemented discontinuities can significantly affect the interaction modes between the induced tensile fractures and pre-existing cemented discontinuities, as well as the mode I fracture toughness of shale. The typical mechanical interaction modes between the induced tensile fractures and the multiple pre-existing cemented discontinuities and the corresponding conditions are given. The effect of pre-coexisting discontinuities on the peak loads for shale during SCB tests is also discussed.</description><identifier>ISSN: 0723-2632</identifier><identifier>EISSN: 1434-453X</identifier><identifier>DOI: 10.1007/s00603-018-1699-3</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Bend properties ; Calcite ; Cementing ; Civil Engineering ; Crack propagation ; Discrete element method ; Earth and Environmental Science ; Earth Sciences ; Fracture mechanics ; Fracture toughness ; Fractures ; Geophysics/Geodesy ; Mathematical models ; Mechanical properties ; Model testing ; Modelling ; Peak load ; Planes ; Sedimentary rocks ; Shale ; Shales ; Technical Note ; Veins (geology)</subject><ispartof>Rock mechanics and rock engineering, 2019-06, Vol.52 (6), p.1993-2001</ispartof><rights>Springer-Verlag GmbH Austria, part of Springer Nature 2019</rights><rights>Rock Mechanics and Rock Engineering is a copyright of Springer, (2019). All Rights Reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a339t-ab439764f56e35aa0ca1ffe471314a400be37f955946bdff4e518552fec3bafe3</citedby><cites>FETCH-LOGICAL-a339t-ab439764f56e35aa0ca1ffe471314a400be37f955946bdff4e518552fec3bafe3</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/s00603-018-1699-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00603-018-1699-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Liu, Zhina</creatorcontrib><creatorcontrib>Xu, Haoran</creatorcontrib><creatorcontrib>Zhao, Zhihong</creatorcontrib><creatorcontrib>Chen, Zhaowei</creatorcontrib><title>DEM Modeling of Interaction Between the Propagating Fracture and Multiple Pre-existing Cemented Discontinuities in Shale</title><title>Rock mechanics and rock engineering</title><addtitle>Rock Mech Rock Eng</addtitle><description>It is known that pre-existing discontinuities can act as planes of weakness that divert the propagating fractures in rocks, but previous studies have mostly focused on the interaction between the propagating fractures and a single pre-existing discontinuity. The influences of multiple pre-existing cemented discontinuities, such as calcite veins and bedding planes, on the fracture propagation still remain poorly understood. In this study, particle-based discrete element method was used to characterize the fracturing behavior of shale containing multiple cemented veins and bedding planes through numerical semi-circular bend (SCB) tests. Model results show that geometrical and mechanical properties of multiple pre-existing cemented discontinuities can significantly affect the interaction modes between the induced tensile fractures and pre-existing cemented discontinuities, as well as the mode I fracture toughness of shale. The typical mechanical interaction modes between the induced tensile fractures and the multiple pre-existing cemented discontinuities and the corresponding conditions are given. The effect of pre-coexisting discontinuities on the peak loads for shale during SCB tests is also discussed.</description><subject>Bend properties</subject><subject>Calcite</subject><subject>Cementing</subject><subject>Civil Engineering</subject><subject>Crack propagation</subject><subject>Discrete element method</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Fracture mechanics</subject><subject>Fracture toughness</subject><subject>Fractures</subject><subject>Geophysics/Geodesy</subject><subject>Mathematical models</subject><subject>Mechanical properties</subject><subject>Model testing</subject><subject>Modelling</subject><subject>Peak load</subject><subject>Planes</subject><subject>Sedimentary rocks</subject><subject>Shale</subject><subject>Shales</subject><subject>Technical Note</subject><subject>Veins (geology)</subject><issn>0723-2632</issn><issn>1434-453X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>BENPR</sourceid><recordid>eNp1kNFKwzAUhoMoOKcP4F3A62jSpGl7qZvTwYaCCt6FrD3ZMrq0JinOt7d1gldeHTjn-_8DH0KXjF4zSrObQKmknFCWEyaLgvAjNGKCCyJS_n6MRjRLOEkkT07RWQhbSvtjlo_Qfnq_xMumgtq6NW4MnrsIXpfRNg7fQfwEcDhuAD_7ptVrHQdsNgCdB6xdhZddHW1bDwQQ2Nvwg0xgB31Thac2lI3rd52NFgK2Dr9sdA3n6MToOsDF7xyjt9n96-SRLJ4e5pPbBdGcF5HoleBFJoVJJfBUa1pqZgyIjHEmtKB0BTwzRZoWQq4qYwSkLE_TxEDJV9oAH6OrQ2_rm48OQlTbpvOuf6kSJhOZcZnnPcUOVOmbEDwY1Xq70_5LMaoGweogWPWC1SBY8T6THDKhZ90a_F_z_6Fv3uJ_fQ</recordid><startdate>20190601</startdate><enddate>20190601</enddate><creator>Liu, Zhina</creator><creator>Xu, Haoran</creator><creator>Zhao, Zhihong</creator><creator>Chen, Zhaowei</creator><general>Springer Vienna</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></search><sort><creationdate>20190601</creationdate><title>DEM Modeling of Interaction Between the Propagating Fracture and Multiple Pre-existing Cemented Discontinuities in Shale</title><author>Liu, Zhina ; Xu, Haoran ; Zhao, Zhihong ; Chen, Zhaowei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a339t-ab439764f56e35aa0ca1ffe471314a400be37f955946bdff4e518552fec3bafe3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Bend properties</topic><topic>Calcite</topic><topic>Cementing</topic><topic>Civil Engineering</topic><topic>Crack propagation</topic><topic>Discrete element method</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Fracture mechanics</topic><topic>Fracture toughness</topic><topic>Fractures</topic><topic>Geophysics/Geodesy</topic><topic>Mathematical models</topic><topic>Mechanical properties</topic><topic>Model testing</topic><topic>Modelling</topic><topic>Peak load</topic><topic>Planes</topic><topic>Sedimentary rocks</topic><topic>Shale</topic><topic>Shales</topic><topic>Technical Note</topic><topic>Veins (geology)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Zhina</creatorcontrib><creatorcontrib>Xu, Haoran</creatorcontrib><creatorcontrib>Zhao, Zhihong</creatorcontrib><creatorcontrib>Chen, Zhaowei</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>Rock mechanics and rock engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Zhina</au><au>Xu, Haoran</au><au>Zhao, Zhihong</au><au>Chen, Zhaowei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>DEM Modeling of Interaction Between the Propagating Fracture and Multiple Pre-existing Cemented Discontinuities in Shale</atitle><jtitle>Rock mechanics and rock engineering</jtitle><stitle>Rock Mech Rock Eng</stitle><date>2019-06-01</date><risdate>2019</risdate><volume>52</volume><issue>6</issue><spage>1993</spage><epage>2001</epage><pages>1993-2001</pages><issn>0723-2632</issn><eissn>1434-453X</eissn><abstract>It is known that pre-existing discontinuities can act as planes of weakness that divert the propagating fractures in rocks, but previous studies have mostly focused on the interaction between the propagating fractures and a single pre-existing discontinuity. The influences of multiple pre-existing cemented discontinuities, such as calcite veins and bedding planes, on the fracture propagation still remain poorly understood. In this study, particle-based discrete element method was used to characterize the fracturing behavior of shale containing multiple cemented veins and bedding planes through numerical semi-circular bend (SCB) tests. Model results show that geometrical and mechanical properties of multiple pre-existing cemented discontinuities can significantly affect the interaction modes between the induced tensile fractures and pre-existing cemented discontinuities, as well as the mode I fracture toughness of shale. The typical mechanical interaction modes between the induced tensile fractures and the multiple pre-existing cemented discontinuities and the corresponding conditions are given. The effect of pre-coexisting discontinuities on the peak loads for shale during SCB tests is also discussed.</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00603-018-1699-3</doi><tpages>9</tpages></addata></record> |
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| subjects | Bend properties Calcite Cementing Civil Engineering Crack propagation Discrete element method Earth and Environmental Science Earth Sciences Fracture mechanics Fracture toughness Fractures Geophysics/Geodesy Mathematical models Mechanical properties Model testing Modelling Peak load Planes Sedimentary rocks Shale Shales Technical Note Veins (geology) |
| title | DEM Modeling of Interaction Between the Propagating Fracture and Multiple Pre-existing Cemented Discontinuities in Shale |
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