Large deformation analysis in geohazards and geotechnics

Yin, Zhen‐Yu; Jin, Yin‐Fu; Zhang, Xue

doi:10.1631/jzus.a21ldgg1

Cited by 11 publications

(3 citation statements)

References 35 publications

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“…The weight of each evaluation index is given to the corresponding layer, and the superposition analysis is carried out according to the following formula [11,12].…”

Section: Overlay Analysismentioning

confidence: 99%

“…Reasonable and legal sea sand mining site selection should be in line with the marine functional zoning [3,4], and for this reason, a regional suitability assessment should be carried out before sea sand mining to determine the most suitable area for development. At present, scholars at home and abroad have preliminary research, Wang Xiuwei et al in the "on the improvement of China's sea sand mining management system" in the sea sand mining system puts forward a number of practicable regulatory programs; Zhang Qin et al in the "Zhanjiang Bay sea sand mining on the periphery of the impact of sediment siltation and wave field" [12] explored the impact of sea sand mining on the aquatic environment; Min, Won-Gi et al studied the impact of sea sand mining on the composition and cessation of small-scale benthic communities. benthic community composition and recolonization rate after the cessation of mining activities.…”

Section: Introductionmentioning

confidence: 99%

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Suitability analysis of sea sand mining in Guangdong Province based on subjective and objective weighting method

Zhong,

Cheng,

Zhou

et al. 2024

Second International Conference on Environmental Remote Sensing and Geographic Information Technology (ERSGIT 2023)

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In this study, the offshore sea area is taken as the research object, and the suitability evaluation set of sea sand mining is established. The analytic hierarchy process (subjective weighting method) and the structural entropy weight method (objective weighting method) are used to calculate the weight of each index in the evaluation set, and the game theory is used to organically combine the two to determine the combined weight of the index. The weighted index layers are superimposed by factors, and the natural breakpoint method is used to divide the suitability of sea sand mining in the study area into five categories: suitable, more suitable, generally suitable, less suitable and unsuitable, and the suitability of sea sand mining in the coastal waters of Guangdong Province is analyzed.

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“…The weight of each evaluation index is given to the corresponding layer, and the superposition analysis is carried out according to the following formula [11,12].…”

Section: Overlay Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Suitability analysis of sea sand mining in Guangdong Province based on subjective and objective weighting method

Zhong,

Cheng,

Zhou

et al. 2024

Second International Conference on Environmental Remote Sensing and Geographic Information Technology (ERSGIT 2023)

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show abstract

“…An alternative solution for overcoming the FEM mesh distortion problem is the meshless technique, which uses a set of particles to replace the mesh in FEM-based approaches [32]. Many meshless numerical frameworks have been presented to solve large-deformation problems in geomechanics so far [33], such as discrete element method (DEM) [34,35], smoothed particle hydrodynamics (SPH) [36,37], and the material point method (MPM) [38,39]. However, meshless methods require neighbours' searching, which needs high computation costs.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of an Explicit Smoothed Particle Finite Element Method on Shallow Vegetated Slope Stability with Different Root Architectures

Jia

Zhang

Wang³

et al. 2022

Sustainability

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Planting vegetation is an environmentally friendly method for reducing landslides. Current vegetated slope analysis fails to consider the influence of different root architectures, and the accuracy and effectiveness of the numerical simulations need to be improved. In this study, an explicit smoothed particle finite element method (eSPFEM) was used to evaluate slope stability under the influence of vegetation roots. The Mohr–Coulomb constitutive model was extended by incorporating apparent root cohesion into the shear strength of the soil. The slope factors of safety (FOS) of four root architectures (uniform, triangular, parabolic, and exponential) for various planting distances, root depths, slope angles, and planting locations were calculated using the shear strength reduction technique with a kinetic energy-based criterion. The results indicated that the higher the planting density, the stronger the reinforcement effect of the roots on the slope. With increasing root depth, the FOS value first decreased and then increased. The FOS value decreased with an increase in slope angle. Planting on the entire ground surface had the best improvement effect on the slope stability, followed by planting vegetation with a uniform root architecture in the upper slope region or planting vegetation with triangular or exponential root architecture on the slope’s toe. Our findings are expected to deepen our understanding of the contributions of different root architectures to vegetated slope protection and guide the selection of vegetation species and planting locations.

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A mixed selective edge-based smoothed PFEM with second-order cone programming for geotechnical large deformation analysis

Zhou

Liu

Jin

et al. 2023

Computers and Geotechnics

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Large deformation analysis in geohazards and geotechnics

Cited by 11 publications

References 35 publications

Suitability analysis of sea sand mining in Guangdong Province based on subjective and objective weighting method

Suitability analysis of sea sand mining in Guangdong Province based on subjective and objective weighting method

Numerical Analysis of an Explicit Smoothed Particle Finite Element Method on Shallow Vegetated Slope Stability with Different Root Architectures

A mixed selective edge-based smoothed PFEM with second-order cone programming for geotechnical large deformation analysis

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