Dynamic response of slopes under near-field seismic excitation using the material point method
文献类型：期刊论文
| 作者 | Du, Wenjie2,3; Fu, Xiaodong2,3; Sheng, Qian2,3; Chen, Jian2,3; Zhou, Yongqiang2,3; Zheng, Shaojie1 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2025-04-01 |
| 卷号 | 180页码:12 |
| 关键词 | Material point method Co-seismic landslide Shake table test Failure mechanism Inertial force |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2025.107100 |
| 英文摘要 | Seismic-induced landslides exhibit distinct instability mechanisms compared to gravitational landslides, characterized by dynamic features such as tension, projection, and directionality. This study investigates the dynamic response and instability mechanisms of near-fault slopes under seismic excitation using a simplified bedrock-slide body dual-structure slope, with failure process simulations conducted through the Material Point Method (MPM). The results indicate that periodic seismic vibrations lead to alternating deep shear and shallow tensile failures, facilitating the formation of a continuous sliding surface. Analyzing the instantaneous unbalanced force direction of particles under seismic load reveals a correlation between slope instability and seismic wave directionality. Seismic P-waves primarily cause tensile plastic failure in the geotechnical body, with smaller slope deformation but a greater potential for ejection toward the free surface. Conversely, S-waves cause considerable deformation, driving shear plastic failure within the slope and the formation of the sliding surface. The tensile and shear plastic responses lag behind the seismic vibrations. This paper discusses the correspondence between the slope's dynamic response under seismic action and the progressive formation process of the sliding surface, where the interaction between the seismic driving force and inertial force results in a significant accumulation of plastic strain, directly affecting the mode of sliding surface formation. Studying the inherent driving mechanisms of slope dynamic failure reveals the dynamic response characteristics of the slope under seismic excitation from multiple perspectives, offering significant implications for explaining the typical directional failure patterns of earthquake-induced landslides. |
| 资助项目 | National Key R&D Program of China[2023YFC3081200] ; National Natural Science Foundation of China[U21A20159] ; National Natural Science Foundation of China[52179117] ; National Natural Science Foundation of China[52409147] ; Key R&D Program of Yunnan Province[202303AA080010] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001409933900001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37626]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Fu, Xiaodong |
| 作者单位 | 1.Changan Univ, Sch Civil Engn, Xian 710064, Shaanxi, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Wenjie,Fu, Xiaodong,Sheng, Qian,et al. Dynamic response of slopes under near-field seismic excitation using the material point method[J]. COMPUTERS AND GEOTECHNICS,2025,180:12. |
| APA | Du, Wenjie,Fu, Xiaodong,Sheng, Qian,Chen, Jian,Zhou, Yongqiang,&Zheng, Shaojie.(2025).Dynamic response of slopes under near-field seismic excitation using the material point method.COMPUTERS AND GEOTECHNICS,180,12. |
| MLA | Du, Wenjie,et al."Dynamic response of slopes under near-field seismic excitation using the material point method".COMPUTERS AND GEOTECHNICS 180(2025):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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