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Model Test Study on Response of Weathered Rock Slope to Rainfall Infiltration under Different Conditions
Weathered rock (especially granite) slopes are prone to failure under the action of rainfall, making it necessary to study the response of weathered rock slope to rainfall infiltration for landslide prevention. In this study, a series of model tests of weathered rock slope under different conditions...
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| Published in: | Journal of earth science (Wuhan, China) China), 2024-08, Vol.35 (4), p.1316-1333 |
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| container_end_page | 1333 |
| container_issue | 4 |
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| container_title | Journal of earth science (Wuhan, China) |
| container_volume | 35 |
| creator | Li, Cong Zhang, Rongtang Zhu, Jiebing Lu, Bo Wang, Xiaowei Xu, Fangling Shen, Xiaoke Liu, Jiesheng Cai, Weizhen |
| description | Weathered rock (especially granite) slopes are prone to failure under the action of rainfall, making it necessary to study the response of weathered rock slope to rainfall infiltration for landslide prevention. In this study, a series of model tests of weathered rock slope under different conditions were conducted. The matric suction, volumetric water content, earth pressure and deformation of slope were monitored in real time during rainfall. The response of the slope to rainfall infiltration, failure process and failure mode of slope under different conditions were analyzed, and the early warning criterion for the failure of weathered rock slope caused by rainfall was studied. The results show that the slope deformation evolution process under rainfall condition was closely related to the dissipation of matric suction. When the distribution of the matrix suction (or water content) of slope met the condition that the resistance to sliding of the slip-mass was overcome, the displacement increased sharply and landslide occurred. Three factors including rainfall process, lithologic condition and excavation condition significantly affect the response of weathered rock slope to rainfall. It can be found from the test results under different conditions that compared with intermittent rainfall condition, the rainfall intensity and infiltration depth were smaller when the slope entering accelerated deformation stage under the condition of incremental rainfall. The accumulated rainfall when weathered clastic landslide occurring was greater than that of weathered granite, which results in greater disaster risk. The excavation angle and moisture distribution of a slope were the main factors affecting the stability of a slope. In addition, the evolution processes and critical displacement velocities of slopes were studied by combining the deformation curves and matrix suction curves, which can be used as reference for early warning of rainfall-induced weathered rock landslide. |
| doi_str_mv | 10.1007/s12583-022-1704-3 |
| format | article |
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In this study, a series of model tests of weathered rock slope under different conditions were conducted. The matric suction, volumetric water content, earth pressure and deformation of slope were monitored in real time during rainfall. The response of the slope to rainfall infiltration, failure process and failure mode of slope under different conditions were analyzed, and the early warning criterion for the failure of weathered rock slope caused by rainfall was studied. The results show that the slope deformation evolution process under rainfall condition was closely related to the dissipation of matric suction. When the distribution of the matrix suction (or water content) of slope met the condition that the resistance to sliding of the slip-mass was overcome, the displacement increased sharply and landslide occurred. Three factors including rainfall process, lithologic condition and excavation condition significantly affect the response of weathered rock slope to rainfall. It can be found from the test results under different conditions that compared with intermittent rainfall condition, the rainfall intensity and infiltration depth were smaller when the slope entering accelerated deformation stage under the condition of incremental rainfall. The accumulated rainfall when weathered clastic landslide occurring was greater than that of weathered granite, which results in greater disaster risk. The excavation angle and moisture distribution of a slope were the main factors affecting the stability of a slope. In addition, the evolution processes and critical displacement velocities of slopes were studied by combining the deformation curves and matrix suction curves, which can be used as reference for early warning of rainfall-induced weathered rock landslide.</description><identifier>ISSN: 1674-487X</identifier><identifier>EISSN: 1867-111X</identifier><identifier>DOI: 10.1007/s12583-022-1704-3</identifier><language>eng</language><publisher>Wuhan: China University of Geosciences</publisher><subject>Accelerated tests ; Biogeosciences ; Deformation ; Deformation analysis ; Disaster risk ; Dredging ; Earth and Environmental Science ; Earth pressure ; Earth Sciences ; Evolution ; Excavation ; Failure modes ; Geochemistry ; Geology ; Geotechnical Engineering & Applied Earth Sciences ; Granite ; Infiltration ; Landslides ; Matric suction ; Moisture content ; Moisture resistance ; Precipitation ; Rainfall ; Rainfall infiltration ; Rainfall intensity ; Rock ; Rocks ; Slip resistance ; Slope ; Slope stability ; Suction ; Water content</subject><ispartof>Journal of earth science (Wuhan, China), 2024-08, Vol.35 (4), p.1316-1333</ispartof><rights>China University of Geosciences (Wuhan) and Springer-Verlag GmbH Germany, Part of Springer Nature 2024</rights><rights>China University of Geosciences (Wuhan) and Springer-Verlag GmbH Germany, Part of Springer Nature 2024.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c198t-fbfe46ddbaa7de478e953d9e246b3ec46a2b5a08b8ce4442fcf95e5a64a22f933</cites><orcidid>0000-0001-5945-2712</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids></links><search><creatorcontrib>Li, Cong</creatorcontrib><creatorcontrib>Zhang, Rongtang</creatorcontrib><creatorcontrib>Zhu, Jiebing</creatorcontrib><creatorcontrib>Lu, Bo</creatorcontrib><creatorcontrib>Wang, Xiaowei</creatorcontrib><creatorcontrib>Xu, Fangling</creatorcontrib><creatorcontrib>Shen, Xiaoke</creatorcontrib><creatorcontrib>Liu, Jiesheng</creatorcontrib><creatorcontrib>Cai, Weizhen</creatorcontrib><title>Model Test Study on Response of Weathered Rock Slope to Rainfall Infiltration under Different Conditions</title><title>Journal of earth science (Wuhan, China)</title><addtitle>J. Earth Sci</addtitle><description>Weathered rock (especially granite) slopes are prone to failure under the action of rainfall, making it necessary to study the response of weathered rock slope to rainfall infiltration for landslide prevention. In this study, a series of model tests of weathered rock slope under different conditions were conducted. The matric suction, volumetric water content, earth pressure and deformation of slope were monitored in real time during rainfall. The response of the slope to rainfall infiltration, failure process and failure mode of slope under different conditions were analyzed, and the early warning criterion for the failure of weathered rock slope caused by rainfall was studied. The results show that the slope deformation evolution process under rainfall condition was closely related to the dissipation of matric suction. When the distribution of the matrix suction (or water content) of slope met the condition that the resistance to sliding of the slip-mass was overcome, the displacement increased sharply and landslide occurred. Three factors including rainfall process, lithologic condition and excavation condition significantly affect the response of weathered rock slope to rainfall. It can be found from the test results under different conditions that compared with intermittent rainfall condition, the rainfall intensity and infiltration depth were smaller when the slope entering accelerated deformation stage under the condition of incremental rainfall. The accumulated rainfall when weathered clastic landslide occurring was greater than that of weathered granite, which results in greater disaster risk. The excavation angle and moisture distribution of a slope were the main factors affecting the stability of a slope. In addition, the evolution processes and critical displacement velocities of slopes were studied by combining the deformation curves and matrix suction curves, which can be used as reference for early warning of rainfall-induced weathered rock landslide.</description><subject>Accelerated tests</subject><subject>Biogeosciences</subject><subject>Deformation</subject><subject>Deformation analysis</subject><subject>Disaster risk</subject><subject>Dredging</subject><subject>Earth and Environmental Science</subject><subject>Earth pressure</subject><subject>Earth Sciences</subject><subject>Evolution</subject><subject>Excavation</subject><subject>Failure modes</subject><subject>Geochemistry</subject><subject>Geology</subject><subject>Geotechnical Engineering & Applied Earth Sciences</subject><subject>Granite</subject><subject>Infiltration</subject><subject>Landslides</subject><subject>Matric suction</subject><subject>Moisture content</subject><subject>Moisture resistance</subject><subject>Precipitation</subject><subject>Rainfall</subject><subject>Rainfall infiltration</subject><subject>Rainfall intensity</subject><subject>Rock</subject><subject>Rocks</subject><subject>Slip resistance</subject><subject>Slope</subject><subject>Slope stability</subject><subject>Suction</subject><subject>Water content</subject><issn>1674-487X</issn><issn>1867-111X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEQhhdRsGh_gLeA59V87SZ7lPpVqAhtxd5CdjOxW9dkTbaH_nuzVPDkXGZg3vcd5smyK4JvCMbiNhJaSJZjSnMiMM_ZSTYhshQ5IWRzmuZS8JxLsTnPpjHucCpGhSRikm1fvIEOrSEOaDXszQF5h5YQe-8iIG_RO-hhCwEMWvrmE6063wMaPFrq1lnddWjubNsNQQ9tcu6dgYDuW2uTxQ1o5p1px028zM6SPML0t19kb48P69lzvnh9ms_uFnlDKjnktrbAS2NqrYUBLiRUBTMVUF7WDBpealoXGstaNsA5p7axVQGFLrmm1FaMXWTXx9w--O99ekvt_D64dFIxXDFS0EripCJHVRN8jAGs6kP7pcNBEaxGpurIVCWmamSqxmR69MSkdR8Q_pL_N_0AlJp63w</recordid><startdate>20240801</startdate><enddate>20240801</enddate><creator>Li, Cong</creator><creator>Zhang, Rongtang</creator><creator>Zhu, Jiebing</creator><creator>Lu, Bo</creator><creator>Wang, Xiaowei</creator><creator>Xu, Fangling</creator><creator>Shen, Xiaoke</creator><creator>Liu, Jiesheng</creator><creator>Cai, Weizhen</creator><general>China University of Geosciences</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>7TN</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H8D</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope><scope>L7M</scope><scope>SOI</scope><orcidid>https://orcid.org/0000-0001-5945-2712</orcidid></search><sort><creationdate>20240801</creationdate><title>Model Test Study on Response of Weathered Rock Slope to Rainfall Infiltration under Different Conditions</title><author>Li, Cong ; Zhang, Rongtang ; Zhu, Jiebing ; Lu, Bo ; Wang, Xiaowei ; Xu, Fangling ; Shen, Xiaoke ; Liu, Jiesheng ; Cai, Weizhen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c198t-fbfe46ddbaa7de478e953d9e246b3ec46a2b5a08b8ce4442fcf95e5a64a22f933</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Accelerated tests</topic><topic>Biogeosciences</topic><topic>Deformation</topic><topic>Deformation analysis</topic><topic>Disaster risk</topic><topic>Dredging</topic><topic>Earth and Environmental Science</topic><topic>Earth pressure</topic><topic>Earth Sciences</topic><topic>Evolution</topic><topic>Excavation</topic><topic>Failure modes</topic><topic>Geochemistry</topic><topic>Geology</topic><topic>Geotechnical Engineering & Applied Earth Sciences</topic><topic>Granite</topic><topic>Infiltration</topic><topic>Landslides</topic><topic>Matric suction</topic><topic>Moisture content</topic><topic>Moisture resistance</topic><topic>Precipitation</topic><topic>Rainfall</topic><topic>Rainfall infiltration</topic><topic>Rainfall intensity</topic><topic>Rock</topic><topic>Rocks</topic><topic>Slip resistance</topic><topic>Slope</topic><topic>Slope stability</topic><topic>Suction</topic><topic>Water content</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Li, Cong</creatorcontrib><creatorcontrib>Zhang, Rongtang</creatorcontrib><creatorcontrib>Zhu, Jiebing</creatorcontrib><creatorcontrib>Lu, Bo</creatorcontrib><creatorcontrib>Wang, Xiaowei</creatorcontrib><creatorcontrib>Xu, Fangling</creatorcontrib><creatorcontrib>Shen, Xiaoke</creatorcontrib><creatorcontrib>Liu, Jiesheng</creatorcontrib><creatorcontrib>Cai, Weizhen</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Environment Abstracts</collection><jtitle>Journal of earth science (Wuhan, China)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Li, Cong</au><au>Zhang, Rongtang</au><au>Zhu, Jiebing</au><au>Lu, Bo</au><au>Wang, Xiaowei</au><au>Xu, Fangling</au><au>Shen, Xiaoke</au><au>Liu, Jiesheng</au><au>Cai, Weizhen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Model Test Study on Response of Weathered Rock Slope to Rainfall Infiltration under Different Conditions</atitle><jtitle>Journal of earth science (Wuhan, China)</jtitle><stitle>J. Earth Sci</stitle><date>2024-08-01</date><risdate>2024</risdate><volume>35</volume><issue>4</issue><spage>1316</spage><epage>1333</epage><pages>1316-1333</pages><issn>1674-487X</issn><eissn>1867-111X</eissn><abstract>Weathered rock (especially granite) slopes are prone to failure under the action of rainfall, making it necessary to study the response of weathered rock slope to rainfall infiltration for landslide prevention. In this study, a series of model tests of weathered rock slope under different conditions were conducted. The matric suction, volumetric water content, earth pressure and deformation of slope were monitored in real time during rainfall. The response of the slope to rainfall infiltration, failure process and failure mode of slope under different conditions were analyzed, and the early warning criterion for the failure of weathered rock slope caused by rainfall was studied. The results show that the slope deformation evolution process under rainfall condition was closely related to the dissipation of matric suction. When the distribution of the matrix suction (or water content) of slope met the condition that the resistance to sliding of the slip-mass was overcome, the displacement increased sharply and landslide occurred. Three factors including rainfall process, lithologic condition and excavation condition significantly affect the response of weathered rock slope to rainfall. It can be found from the test results under different conditions that compared with intermittent rainfall condition, the rainfall intensity and infiltration depth were smaller when the slope entering accelerated deformation stage under the condition of incremental rainfall. The accumulated rainfall when weathered clastic landslide occurring was greater than that of weathered granite, which results in greater disaster risk. The excavation angle and moisture distribution of a slope were the main factors affecting the stability of a slope. In addition, the evolution processes and critical displacement velocities of slopes were studied by combining the deformation curves and matrix suction curves, which can be used as reference for early warning of rainfall-induced weathered rock landslide.</abstract><cop>Wuhan</cop><pub>China University of Geosciences</pub><doi>10.1007/s12583-022-1704-3</doi><tpages>18</tpages><orcidid>https://orcid.org/0000-0001-5945-2712</orcidid></addata></record> |
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| ispartof | Journal of earth science (Wuhan, China), 2024-08, Vol.35 (4), p.1316-1333 |
| issn | 1674-487X 1867-111X |
| language | eng |
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| subjects | Accelerated tests Biogeosciences Deformation Deformation analysis Disaster risk Dredging Earth and Environmental Science Earth pressure Earth Sciences Evolution Excavation Failure modes Geochemistry Geology Geotechnical Engineering & Applied Earth Sciences Granite Infiltration Landslides Matric suction Moisture content Moisture resistance Precipitation Rainfall Rainfall infiltration Rainfall intensity Rock Rocks Slip resistance Slope Slope stability Suction Water content |
| title | Model Test Study on Response of Weathered Rock Slope to Rainfall Infiltration under Different Conditions |
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