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- W2372627837 abstract "In order to investigate the mechanism how the movement of large-scale deep-seated landslide develops at the edge of loess tableland in Weihe River basin,balance computation of geological section of landslide mass and dynamic numerical simulation of movement process are conducted,together with the analysis of the tectono-geomorphologic process of slope on the north bank Combined with research on the macromechanics background,characteristics of physical structure changes and characteristics of shear creep and sliding mechanics of clay rock slip band development,this paper identifies the characteristics of geometry and kinematics of deep-seated landslide and reveals the sliding-control mechanism for plastic flow extruded from clay rock slip band.The research indicates that:(1)The deformation of large-scale deepseated landslide initiates at the trailing edge,then transfers to the slope toe,leading to a descent at the trailing edge and ascent at the front edge.The overall deformation is controlled by the mudstone located at the bottom.With the horizontal displacement,it could be categorized as rotatory-translational revived landslide;(2)The clay rock slip band evolves to be a creep deformation band due to tectonic damage.During the failure process of landslide,the plastic deformation zone below the sliding mass presents a diagonal triangle.It takes reverse overthrust movement to form the overturned structure and it presents plastic flow deformation and flow extrusion damages;(3)The increase of clay mineral content and activity enhancement have been identified as the cause of plastic flow deformation of clay rock.The clay content(2μm)within the slip soil increases from 17.94% to 50.22%,and the absolute content of montmorillonite increases from 13.19% to 26.38%.The average of specific surface area of clay rock increases from 124.55to 215.08,which could easily deteriorate the strength and water-physical properties,and cause severe deformations of the sliding mass.The sliding mass would be pushed by the high pore water pressure." @default.
- W2372627837 created "2016-06-24" @default.
- W2372627837 creator A5024231461 @default.
- W2372627837 date "2014-01-01" @default.
- W2372627837 modified "2023-09-23" @default.
- W2372627837 title "Research on Kinematics and Dynamic Mechanism of Large-Scale Deep-Seated Landslide on the North Bank of Baoji Stream Segment of Weihe River in Loess Plateau" @default.
- W2372627837 hasPublicationYear "2014" @default.
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