Cone impact penetration in sand: from high-rate granular mechanics to rapid inversion of shear-strength parameters
文献类型：期刊论文
| 作者 | Ying LP(应黎坪)1,3; Li YQ(李玉琼)1,2,3; Li N(李娜)1,3; Lv ZY(吕志远)1,3; Liu QH(刘晴昊)1,3; Cui GZ(崔高瞻)1,3 |
| 刊名 | COMPUTERS AND GEOTECHNICS
 |
| 出版日期 | 2025-12-01 |
| 卷号 | 188页码:15 |
| 关键词 | Soil Impact penetration test Penetration resistance Discrete element modeling Shear strength parameters |
| ISSN号 | 0266-352X |
| DOI | 10.1016/j.compgeo.2025.107546 |
| 通讯作者 | Li, Yuqiong(liyuqiong@imech.ac.cn) |
| 英文摘要 | To support geotechnical investigations in hazardous or inaccessible areas, such as evaluating ground bearing capacity for vehicle mobility, issuing timely landslide warnings, and investigating planetary regolith mechanics, this study introduces a cone impact penetration technique and examines the dynamic penetration behaviors of sand through combined laboratory experiments and discrete element method (DEM) simulations. The study employed a cone impact penetrometer to assess the effects of moisture content (5 %, 10 %, 15 %) and impact velocity (similar to 15 m/s and similar to 30 m/s) on penetration resistance. DEM simulations successfully reproduced experimental penetration resistance and deceleration profiles, demonstrating excellent predictive capability for dynamic penetration events. Parametric analyses revealed that peak resistance scales linearly with the square of the initial velocity, particle density, and interparticle friction coefficient, and increases logarithmically with capillary forces. Furthermore, particle-scale DEM analyses provided detailed insights into localized granular flow and stress distribution patterns around the penetrometer, highlighting distinct zones of shear localization and rotational motion. The spherical cavity expansion (SCE) theory, validated by comparison with experimental and DEM data, effectively predicted penetration resistance at intermediate impact velocities typical of practical geotechnical applications. Finally, a hybrid inversion framework combining the SCE model with a multi-island genetic algorithm (MIGA) was developed to efficiently extract key soil shear strength parameters (cohesion and internal friction angle) from impact penetration data. These findings advance rapid in-situ assessment of soil mechanical properties, especially in settings where traditional testing methods are impractical or infeasible. |
| 分类号 | 一类 |
| WOS关键词 | DEM ; VELOCITY ; TESTS ; SHAPE ; CPT |
| 资助项目 | Youth Innovation Promotion Association of the Chinese Academy of Sciences[Y2022009] ; High-level Innovation Research Institute Program of Guangdong Province[2020B0909010003] ; Strategic Priority Research Program of Chinese Academy of Sciences[XDB0620103] ; National Natural Science Foundation of China[52301405] ; National Natural Science Foundation of China[12302109] |
| WOS研究方向 | Computer Science ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:001555375200004 |
| 资助机构 | Youth Innovation Promotion Association of the Chinese Academy of Sciences ; High-level Innovation Research Institute Program of Guangdong Province ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 其他责任者 | 李玉琼 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/103783]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 作者单位 | 1.Guangdong Aerosp Res Acad, Guangzhou 511458, Nan Sha, Peoples R China 2.Chinese Acad Sci, Inst Mech, Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; 3.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing 100190, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Ying LP,Li YQ,Li N,et al. Cone impact penetration in sand: from high-rate granular mechanics to rapid inversion of shear-strength parameters[J]. COMPUTERS AND GEOTECHNICS,2025,188:15. |
| APA | 应黎坪,李玉琼,李娜,吕志远,刘晴昊,&崔高瞻.(2025).Cone impact penetration in sand: from high-rate granular mechanics to rapid inversion of shear-strength parameters.COMPUTERS AND GEOTECHNICS,188,15. |
| MLA | 应黎坪,et al."Cone impact penetration in sand: from high-rate granular mechanics to rapid inversion of shear-strength parameters".COMPUTERS AND GEOTECHNICS 188(2025):15. |
入库方式： OAI收割
来源：力学研究所
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