Reactivation mechanism and evolution characteristics of water softening-induced reservoir-reactivated landslides: a case study for the Three Gorges Reservoir Area, China

Sun, Lijuan; Li, Chenjia; Shen, Fangming; Zhang, Huzhu

doi:10.1007/s10064-023-03084-9

Cited by 7 publications

(1 citation statement)

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“…However, varying results across different engineering contexts have yet to yield a unified conclusion. Sun et al (Sun et al 2023) employed physical model experiments to assess the influence of water content on the strength, deformation parameters, and stability of sliding zone soil, concluding that tension-shear failure primarily characterizes the destruction of reservoir bank landslides. Zhu et al (Zhu et al 2022) conducted circumferential shear tests to analyze the shear properties of sliding zone soil in loess areas, revealing dynamic changes in soil water content during the shear process, which, in turn, affected shear strength parameters.…”

Section: Main Text: 1 Introductionmentioning

confidence: 99%

Experimental investigation into the physical properties of mixed soil within sliding zones and landslide slip zone evolution process analysis

Zhang,

Wu,

et al. 2024

Preprint

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The formation of slip zone is a key process for the landslide disasters occurrence. This study aims to investigate the physical properties of a complex multicomponent sliding zone soil within a typical large landslide, shedding light on the mechanisms behind sliding zone formation. Various physical testing methods were employed to analyze the mixed sliding zone soil, which is comprised of several components. The primary constituents of the sliding zone soil, including fully weathered tuff soil and silty clay, were combined in different proportions using materials sourced from a representative landslide site. Analyses methods encompassed liquid-plastic limit tests, unconfined compressive strength tests, direct shear tests, and water retention capacity assessments. Experimental findings underscore the substantial alteration of physical properties in the sliding zone soil due to the intermixing of multiple soil components during the slope's sliding zone formation. This alteration is chiefly characterized by a reduction in shear strength and water retention capacity. Consequently, mixed sliding zone soil is more susceptible to waterlogging and saturation phenomena. Based on the experimental data, the formation process of a typical landslide slip zone was revealed.

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Section: Main Text: 1 Introductionmentioning

confidence: 99%