Sensitivity and Calibration of Three-Dimensional SPH Formulations in Large-Scale Landslide Modeling | |
Li, Shuai3,4; Tang, Hui3; Peng, Chong2; Turowski, Jens M.1; Schoepa, Anne1; An, Huicong4; Chen, Xiaoqing4; Ouyang, Chaojun4; Chen, Jiangang4 | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH |
2023-02-01 | |
卷号 | 128期号:2页码:22 |
关键词 | landslides numerical modeling constitutive model model calibration routines friction cohesion |
ISSN号 | 2169-9313 |
DOI | 10.1029/2022JB024583 |
英文摘要 | Numerical prediction of landslide runout and deposition is important for estimating landslide risk and developing mitigation plans. The choice of a suitable model and its parameters and a confident calibration strategy are crucial for numerical simulations. Here, we evaluated two constitutive models with a three-dimensional smoothed particle hydrodynamics (SPH) method by simulating the catastrophic 11 October 2018 Baige landslide. The results indicate that both the soil mechanic and fluid models can capture the dynamic runout and deposition morphology while using different values of input parameters. A point-wise comparison of deposit elevation can minimize the calibration error. Numerical models were constrained accurately by utilizing both the static observation data and dynamic seismic signals. The effects of friction on deep-seated landslides motion and deposition are more significant than cohesion. The 3D model includes the effects of shear stresses and velocities inside the material body, resulting in a reduced friction coefficient compared to the 2D model (e.g., depth-averaged model). Our study highlights the potential of the 3D SPH method for modeling large-scale complex landslides. |
资助项目 | Natural Science Foundation of China[42007270] ; Natural Science Foundation of China[41925030] ; Youth Innovation Promotion Association CAS[2022379] ; Sichuan Science and Technology Program[2019YJ0009] ; Sichuan Science and Technology Program[M-0145] ; Helmholtz-OCPC Postdoc Program fellowship[ZD2019042] |
WOS关键词 | SMOOTHED PARTICLE HYDRODYNAMICS ; 2017 XINMO LANDSLIDE ; DEBRIS-FLOW ; LARGE-DEFORMATION ; RUNOUT ANALYSIS ; JINSHA RIVER ; MOBILITY ; FAILURE ; DYNAMICS ; SOLVER |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000995445700001 |
资助机构 | Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Sichuan Science and Technology Program ; Helmholtz-OCPC Postdoc Program fellowship |
内容类型 | 期刊论文 |
源URL | [http://ir.imde.ac.cn/handle/131551/57397] |
专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
通讯作者 | Li, Shuai |
作者单位 | 1.German Res Ctr Geosci GFZ, Sect Geomorphol 4 6, Potsdam, Germany 2.ESS Engn Software Steyr GmbH, Steyr, Austria 3.German Res Ctr Geosci GFZ, Sect Earth Surface Proc Modelling 4 7, Potsdam, Germany 4.Chinese Acad Sci, Inst Mt Hazards & Environm, Chengdu, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Shuai,Tang, Hui,Peng, Chong,et al. Sensitivity and Calibration of Three-Dimensional SPH Formulations in Large-Scale Landslide Modeling[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2023,128(2):22. |
APA | Li, Shuai.,Tang, Hui.,Peng, Chong.,Turowski, Jens M..,Schoepa, Anne.,...&Chen, Jiangang.(2023).Sensitivity and Calibration of Three-Dimensional SPH Formulations in Large-Scale Landslide Modeling.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,128(2),22. |
MLA | Li, Shuai,et al."Sensitivity and Calibration of Three-Dimensional SPH Formulations in Large-Scale Landslide Modeling".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 128.2(2023):22. |
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