Interpretation of cone penetration test in clay with smoothed particle finite element method
文献类型：期刊论文
| 作者 | Zhang, Wei1,4; Zou, Jia-qiang1; Zhang, Xian-wei2; Yuan, Wei-hai3; Wu, Wei4 |
| 刊名 | ACTA GEOTECHNICA
 |
| 出版日期 | 2021-07-05 |
| 期号 | -页码:15 |
| 关键词 | Cone penetration test Cone factor Large deformation Modified Cam-Clay Numerical modeling Smoothed particle finite element method |
| ISSN号 | 1861-1125 |
| DOI | 10.1007/s11440-021-01217-6 |
| 英文摘要 | Cone penetration test (CPT) is widely used to explore the in situ soil mechanical properties and the stratigraphy. The numerical simulation of CPT can help understand its mechanical process and link the testing data to soil properties. However, this task is challenging due to multiple (i.e., geometric, material and contact) nonlinearity of the problem. This study extends a large deformation numerical framework, smoothed particle finite element method (SPFEM), to address this problem. A finite element formulation for multibody frictional contact problems is incorporated to deal with the interaction between the steel cone and soil. An explicit stress point integration scheme with substepping is adopted to solve the elastoplastic constitutive equation of soil. The details of the novel numerical procedure are demonstrated. Using the developed approach, parametric studies are conducted for both undrained Tresca soil and fully drained modified Cam-Clay. The correctness and robustness of the proposed approach are validated. For the undrained Tresca soil, a linear relationship between the cone factor N-kt and the natural logarithm of rigidity index ln(I-r) is confirmed, and then, a new equation for the interpretation of soil undrained shear strength is proposed. For fully drained modified Cam-Clay, the effects of some model parameters and earth pressure coefficient at-rest K-0 on the drained cone factor are elucidated. Direct numerical simulation of CPT with SPFEM can provide an effective approach to determine some key parameters of the soil constitutive model and therefore improve the accuracy of numerical simulation for engineering applications. |
| 资助项目 | Natural Science Foundation of Guangdong Province[2018A030310346] ; Water Conservancy Science and Technology Innovation Project of Guangdong Province[2017-30] ; Water Conservancy Science and Technology Innovation Project of Guangdong Province[2020-11] ; H2020 Marie Skodowska-Curie Action RISE 2017 HERCULES[778360] ; Erasmus+ KA2 project Re-built[2018-1-RO01-KA203-049214] ; Nazarbayev University Research Fund[SOE2017001] ; Natural Science Foundation of China[41807223] ; H2020 Marie Skodowska-Curie Action FRAMED[734485] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000669761800001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/27348]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.South China Agr Univ, Coll Water Conservancy & Civil Engn, Guangzhou 510642, Peoples R China 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 3.Hohai Univ, Coll Mech & Mat, Nanjing 210098, Peoples R China 4.Univ Bodenkultur, Inst Geotech, Feistmantelstr 4, A-1180 Vienna, Austria |
| 推荐引用方式 GB/T 7714 | Zhang, Wei,Zou, Jia-qiang,Zhang, Xian-wei,et al. Interpretation of cone penetration test in clay with smoothed particle finite element method[J]. ACTA GEOTECHNICA,2021(-):15. |
| APA | Zhang, Wei,Zou, Jia-qiang,Zhang, Xian-wei,Yuan, Wei-hai,&Wu, Wei.(2021).Interpretation of cone penetration test in clay with smoothed particle finite element method.ACTA GEOTECHNICA(-),15. |
| MLA | Zhang, Wei,et al."Interpretation of cone penetration test in clay with smoothed particle finite element method".ACTA GEOTECHNICA .-(2021):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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