Automatic recognition of slide mass and inversion analysis of landslide based on discrete element method

Tang, Yi; Xie, Linglin; Chen, Yifan; Sun, Shuwei; Zha, Wenhua; Lin, Hang

doi:10.1016/j.cageo.2023.105338

Cited by 11 publications

(2 citation statements)

References 29 publications

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“…At present, machine learning techniques are increasingly being integrated into slope engineering practices. The identification of the CSS can be transformed into a clustering problem based on the displacement data, and the k-means clustering algorithm has been utilized to obtain the location of the CSS using displacement field dataset from the numerical simulation [9][10][11][12]. This study employs the k-means clustering algorithm to automatically identify the recognizing slip positions based on the subsurface displacement curves.…”

Section: Introductionmentioning

confidence: 99%

Location of the critical slip surface based on monitoring data and genetic algorithm

Fan,

Lu,

Zhao

et al. 2024

Phys. Scr.

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The non-circular search limit equilibrium method (LEM) is a significant methodology in the analysis of slope stability, aimed at identifying the critical slip surface (CSS) and the safety factor (SF). However, the existing LEM does not consider monitoring data, such as the subsurface displacement, in the CSS search process for the actual slopes. In this paper, a new approach is proposed that combines LEM with subsurface displacement data to more accurately identify the CSS. The k-means clustering algorithm is utilized to determine the recognizing slip positions corresponding to each subsurface displacement curve. Additionally, the Spencer’s method is employed to calculate the SF. By treating the recognizing slip positions as constraint conditions, the genetic algorithm (GA) is applied to search for the location of the CSS. To validate the accuracy and usefulness of the proposed method, four numerical examples and an experimental case are presented.

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Section: Introductionmentioning

confidence: 99%

Location of the critical slip surface based on monitoring data and genetic algorithm

Fan,

Lu,

Zhao

et al. 2024

Phys. Scr.

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“…China is a country where geological hazards are extremely frequent, with landslide hazards accounting for nearly half of them. The contradiction between the rapidly growing population and the limited urban space has led to the advancement of the scope of human life and engineering activities to remote areas, and engineering activities such as road, bridge and tunnel construction are increasingly carried out in mountainous areas [1,2]. As a common slope type in mountainous areas, flat-dipping bedding slopes are widely distributed in China and present many stability problems, among which rainfall-induced landslides are widespread and frequent [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Bedding Slope Destabilization under Rainfall: A Case Study of Zhuquedong Slope in Hunan Province, China

Xu,

Hu,

Lin

et al. 2024

Applied Sciences

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The soft interlayer and rock structure play a significant role in controlling the deformation of the bedding slope, and it is necessary to consider the phenomenon of the sudden change of local response in these key parts under rainfall conditions, and then to clarify the mechanism of rainfall infiltration and damage mechanism of such slopes. In this paper, a large red-layered flat-dipping bedding landslide was selected as the research object, and numerical calculations based on the Van Genuchten model for saturated–unsaturated flow were performed in order to investigate the hydrological response and distribution patterns of water within the slope during rainfall. Moreover, stability analysis was performed based on the seepage field results and secondary development of FLAC3D, and the landslide evolution process was simulated and reproduced using the constitutive model of double-variables and the strength reduction method (SRM). The results showed that the effects of heavy rainfall on the water distribution and stability of the highway slope are significant, while the effects on the natural slope are not significant. There are three phases of the slope destabilization: flexure and uplift state, deformation exacerbation state and shear failure state. The slope destabilization mechanism is a typical “sliding-bending-shearing” type. The results of the study can provide a theoretical basis for the study of the seepage, stability analysis and destabilization mechanism of bedding slopes.

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Noncircular Slip Surface Search on Slopes Based on Minimum Potential Energy Method and Improved SA Algorithm

Tang,

Lin

2024

Num Anal Meth Geomechanics

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The limit equilibrium method has been widely used in the study of searching the slip surface of slopes. However, the method ignores the deformation characteristics of the rock mass and assumes that the shape of the slip surface is circular, which is quite different from the actual situation of the slope. For this reason, this paper proposes a fast search method for noncircular slip surface considering the deformation characteristics of the rock mass. The method is able to calculate the compression and shear deformation energies stored in the slip surface, as well as the virtual displacement generated by the slide mass when the slope is in a critical equilibrium state. The direction of motion of the slide mass is further calculated from the magnitude of the virtual displacement. In addition, this paper improves the generation of new solutions in the simulated annealing (SA) algorithm for the structural characteristics of the slip surface of the slope, thus achieving a fast search of the slip surface. Finally, the method of this paper is compared with the test question of ACADS and the simulation results of the finite difference method (FDM) to verify the effectiveness of the method of this paper.

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Automatic recognition of slide mass and inversion analysis of landslide based on discrete element method

Cited by 11 publications

References 29 publications

Location of the critical slip surface based on monitoring data and genetic algorithm

Location of the critical slip surface based on monitoring data and genetic algorithm

Bedding Slope Destabilization under Rainfall: A Case Study of Zhuquedong Slope in Hunan Province, China

Noncircular Slip Surface Search on Slopes Based on Minimum Potential Energy Method and Improved SA Algorithm

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