Mechanism of the 2019 Yahuokou landslide reactivation in Gansu, China and its causes
In this study, we investigated a recent landslide that occurred in Zhouqu County, China. At 18:00 pm Beijing time on July 19, 2019, the Yahuokou landslide was reactivated. About 3.92 × 106 m 3 of debris slumped from the slope, blocking the Minjiang River channel, causing the water level to rise, and...
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| Veröffentlicht in: | Landslides 2020-06, Vol.17 (6), p.1429-1440 |
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| description | In this study, we investigated a recent landslide that occurred in Zhouqu County, China. At 18:00 pm Beijing time on July 19, 2019, the Yahuokou landslide was reactivated. About 3.92 × 106 m
3
of debris slumped from the slope, blocking the Minjiang River channel, causing the water level to rise, and disrupting road. Fortunately, there were no injuries. A field survey, remote sensing imaging, borehole core analysis, landslide monitoring, and rainfall data analysis were conducted to examine the geomorphologic and stratigraphic characteristics of the landslide, the reactivation causes, and the dynamic mechanism of the landslide. A model for the reactivation and evolution of the landslide is presented. The field survey of the sliding zone indicates that the landslide has a flow-slide deformation pattern. The landslide mechanism is summarized as follows. Initially, slow plastic flow sliding occurred in the upper sliding body. Then the platform in the middle gentle slope was preloaded by deposits from the upper part failure, resulting in a “cutting and filling” effect. The failure occurred in the form of creep–tension cracks–debris flow–slide. Finally, the block on the lower part slumped. Thus, the upper, middle, and lower parts of the landslide all transferred stress in the same manner, being activated step by step, and slowly slumped into the river. |
| doi_str_mv | 10.1007/s10346-020-01384-9 |
| format | Article |
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3
of debris slumped from the slope, blocking the Minjiang River channel, causing the water level to rise, and disrupting road. Fortunately, there were no injuries. A field survey, remote sensing imaging, borehole core analysis, landslide monitoring, and rainfall data analysis were conducted to examine the geomorphologic and stratigraphic characteristics of the landslide, the reactivation causes, and the dynamic mechanism of the landslide. A model for the reactivation and evolution of the landslide is presented. The field survey of the sliding zone indicates that the landslide has a flow-slide deformation pattern. The landslide mechanism is summarized as follows. Initially, slow plastic flow sliding occurred in the upper sliding body. Then the platform in the middle gentle slope was preloaded by deposits from the upper part failure, resulting in a “cutting and filling” effect. The failure occurred in the form of creep–tension cracks–debris flow–slide. Finally, the block on the lower part slumped. Thus, the upper, middle, and lower parts of the landslide all transferred stress in the same manner, being activated step by step, and slowly slumped into the river.</description><identifier>ISSN: 1612-510X</identifier><identifier>EISSN: 1612-5118</identifier><identifier>DOI: 10.1007/s10346-020-01384-9</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Activation ; Agriculture ; Blocking ; Boreholes ; Civil Engineering ; Core analysis ; Cracks ; Data analysis ; Debris flow ; Deformation ; Earth and Environmental Science ; Earth Sciences ; Earthquakes ; Fault lines ; Flowslides ; Fluvial deposits ; Geography ; Geology ; Geomorphology ; Hydrologic data ; Injury analysis ; Landslides ; Landslides & mudslides ; Lithology ; Natural Hazards ; Plastic flow ; Polls & surveys ; Rain ; Rainfall ; Rainfall data ; Rainfall data analysis ; Recent Landslides ; Remote sensing ; River channels ; Rivers ; Sliding ; Slopes ; Slumping ; Solifluction ; Stratigraphy ; Surveying ; Water levels</subject><ispartof>Landslides, 2020-06, Vol.17 (6), p.1429-1440</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2020</rights><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a370t-8331cb6df9c35ea8d315d9c4ab581e1d7fe8c654a5f4b278aea6d3c6139d11f63</citedby><cites>FETCH-LOGICAL-a370t-8331cb6df9c35ea8d315d9c4ab581e1d7fe8c654a5f4b278aea6d3c6139d11f63</cites><orcidid>0000-0001-8180-0787</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/s10346-020-01384-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10346-020-01384-9$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,777,781,27905,27906,41469,42538,51300</link.rule.ids></links><search><creatorcontrib>Zhang, Zelin</creatorcontrib><title>Mechanism of the 2019 Yahuokou landslide reactivation in Gansu, China and its causes</title><title>Landslides</title><addtitle>Landslides</addtitle><description>In this study, we investigated a recent landslide that occurred in Zhouqu County, China. At 18:00 pm Beijing time on July 19, 2019, the Yahuokou landslide was reactivated. About 3.92 × 106 m
3
of debris slumped from the slope, blocking the Minjiang River channel, causing the water level to rise, and disrupting road. Fortunately, there were no injuries. A field survey, remote sensing imaging, borehole core analysis, landslide monitoring, and rainfall data analysis were conducted to examine the geomorphologic and stratigraphic characteristics of the landslide, the reactivation causes, and the dynamic mechanism of the landslide. A model for the reactivation and evolution of the landslide is presented. The field survey of the sliding zone indicates that the landslide has a flow-slide deformation pattern. The landslide mechanism is summarized as follows. Initially, slow plastic flow sliding occurred in the upper sliding body. Then the platform in the middle gentle slope was preloaded by deposits from the upper part failure, resulting in a “cutting and filling” effect. The failure occurred in the form of creep–tension cracks–debris flow–slide. Finally, the block on the lower part slumped. Thus, the upper, middle, and lower parts of the landslide all transferred stress in the same manner, being activated step by step, and slowly slumped into the river.</description><subject>Activation</subject><subject>Agriculture</subject><subject>Blocking</subject><subject>Boreholes</subject><subject>Civil Engineering</subject><subject>Core analysis</subject><subject>Cracks</subject><subject>Data analysis</subject><subject>Debris flow</subject><subject>Deformation</subject><subject>Earth and Environmental Science</subject><subject>Earth Sciences</subject><subject>Earthquakes</subject><subject>Fault lines</subject><subject>Flowslides</subject><subject>Fluvial deposits</subject><subject>Geography</subject><subject>Geology</subject><subject>Geomorphology</subject><subject>Hydrologic data</subject><subject>Injury analysis</subject><subject>Landslides</subject><subject>Landslides & mudslides</subject><subject>Lithology</subject><subject>Natural Hazards</subject><subject>Plastic flow</subject><subject>Polls & surveys</subject><subject>Rain</subject><subject>Rainfall</subject><subject>Rainfall data</subject><subject>Rainfall data analysis</subject><subject>Recent Landslides</subject><subject>Remote sensing</subject><subject>River channels</subject><subject>Rivers</subject><subject>Sliding</subject><subject>Slopes</subject><subject>Slumping</subject><subject>Solifluction</subject><subject>Stratigraphy</subject><subject>Surveying</subject><subject>Water 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Yahuokou landslide reactivation in Gansu, China and its causes</title><author>Zhang, Zelin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a370t-8331cb6df9c35ea8d315d9c4ab581e1d7fe8c654a5f4b278aea6d3c6139d11f63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Activation</topic><topic>Agriculture</topic><topic>Blocking</topic><topic>Boreholes</topic><topic>Civil Engineering</topic><topic>Core analysis</topic><topic>Cracks</topic><topic>Data analysis</topic><topic>Debris flow</topic><topic>Deformation</topic><topic>Earth and Environmental Science</topic><topic>Earth Sciences</topic><topic>Earthquakes</topic><topic>Fault lines</topic><topic>Flowslides</topic><topic>Fluvial deposits</topic><topic>Geography</topic><topic>Geology</topic><topic>Geomorphology</topic><topic>Hydrologic data</topic><topic>Injury analysis</topic><topic>Landslides</topic><topic>Landslides & mudslides</topic><topic>Lithology</topic><topic>Natural Hazards</topic><topic>Plastic flow</topic><topic>Polls & surveys</topic><topic>Rain</topic><topic>Rainfall</topic><topic>Rainfall data</topic><topic>Rainfall data analysis</topic><topic>Recent Landslides</topic><topic>Remote sensing</topic><topic>River channels</topic><topic>Rivers</topic><topic>Sliding</topic><topic>Slopes</topic><topic>Slumping</topic><topic>Solifluction</topic><topic>Stratigraphy</topic><topic>Surveying</topic><topic>Water levels</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Zelin</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research 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China</collection><collection>Engineering Collection</collection><collection>Environmental Science Collection</collection><collection>ProQuest Central Basic</collection><jtitle>Landslides</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Zelin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Mechanism of the 2019 Yahuokou landslide reactivation in Gansu, China and its causes</atitle><jtitle>Landslides</jtitle><stitle>Landslides</stitle><date>2020-06-01</date><risdate>2020</risdate><volume>17</volume><issue>6</issue><spage>1429</spage><epage>1440</epage><pages>1429-1440</pages><issn>1612-510X</issn><eissn>1612-5118</eissn><abstract>In this study, we investigated a recent landslide that occurred in Zhouqu County, China. At 18:00 pm Beijing time on July 19, 2019, the Yahuokou landslide was reactivated. About 3.92 × 106 m
3
of debris slumped from the slope, blocking the Minjiang River channel, causing the water level to rise, and disrupting road. Fortunately, there were no injuries. A field survey, remote sensing imaging, borehole core analysis, landslide monitoring, and rainfall data analysis were conducted to examine the geomorphologic and stratigraphic characteristics of the landslide, the reactivation causes, and the dynamic mechanism of the landslide. A model for the reactivation and evolution of the landslide is presented. The field survey of the sliding zone indicates that the landslide has a flow-slide deformation pattern. The landslide mechanism is summarized as follows. Initially, slow plastic flow sliding occurred in the upper sliding body. Then the platform in the middle gentle slope was preloaded by deposits from the upper part failure, resulting in a “cutting and filling” effect. The failure occurred in the form of creep–tension cracks–debris flow–slide. Finally, the block on the lower part slumped. Thus, the upper, middle, and lower parts of the landslide all transferred stress in the same manner, being activated step by step, and slowly slumped into the river.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s10346-020-01384-9</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0001-8180-0787</orcidid></addata></record> |
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| subjects | Activation Agriculture Blocking Boreholes Civil Engineering Core analysis Cracks Data analysis Debris flow Deformation Earth and Environmental Science Earth Sciences Earthquakes Fault lines Flowslides Fluvial deposits Geography Geology Geomorphology Hydrologic data Injury analysis Landslides Landslides & mudslides Lithology Natural Hazards Plastic flow Polls & surveys Rain Rainfall Rainfall data Rainfall data analysis Recent Landslides Remote sensing River channels Rivers Sliding Slopes Slumping Solifluction Stratigraphy Surveying Water levels |
| title | Mechanism of the 2019 Yahuokou landslide reactivation in Gansu, China and its causes |
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