Deformation forecasting of huangtupo riverside landslide in the case of frequent microseisms

Jiang, Jiwei; Xiang, Wei; Wei, Zhang; Pan, Jinhe

doi:10.1007/s12583-016-0617-4

Cited by 6 publications

(1 citation statement)

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“…The reservoir impoundment and subsequent rise and fall of the water level are the key activating factors for reservoir-induced landslides [16][17][18][19]. The triggering mechanism as a result of the dry-wet circulation situation may be (1) a change in the slope's hydraulic boundary conditions or (2) deterioration of the mechanical properties [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Stability and Deformation Analysis of Landslide under Coupling Effect of Rainfall and Reservoir Drawdown

Shoaib

Yang

et al. 2021

Civ Eng J

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Landslides, a devastating hazard, continue to happen, affecting the lives of thousands of people each year. Fluctuation in the Reservoir Water Level (FRWL) is one of the leading features disturbing the slope stability in reservoir areas, drawdown is more crucial than the rise to the stability of landslide. Latest studies grounded on field investigation and monitoring data propose that landslides in reservoir areas are initiated not solely by one issue like precipitation or FRWL, however conjointly by their joint actions. Zhulinwan landslide in Chongqing, China, Three Gorges Reservoir (TGR) area was analyzed by field investigation and numerical modelling to evaluate the characteristics of the landslide. The changes in landslide stability and deformation under the effect of reservoir drawdown and rainfall is analyzed using GEOSLOPE Software. The seepage analysis is done using SEEP W Model, afterward deformation and stability analysis using SLOPE W and SIGMA W respectively. The analysis confirmed that the coupling effect of reservoir drawdown at 1.2 m/d and rainstorm of once in 50 years return period makes the landslide unstable. Moreover, deformation at the same condition is maximum 0.049 m. The findings may be used by local authorities to help make decisions about slope stabilization in the event of a confirmed significant rainfall event. Doi: 10.28991/cej-2021-03091713 Full Text: PDF

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