Undrained dynamic behaviour of peaty organic soil under long-term cyclic loading, Part II: Constitutive model and simulation
文献类型：期刊论文
| 作者 | Chen, Cheng2; Xua, Guofang2; Zhou, Zhengming2; Kong, Lingwei2; Zhang, Xianwei2; Yin, Song1 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2020-02-01 |
| 卷号 | 129页码:10 |
| 关键词 | Peaty organic soil Long-term cyclic loading Constitutive model Empirical equation Simulation |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2019.01.039 |
| 英文摘要 | Based on the experimental evidences presented in Part I, an empirical equation for the peaty organic soil is derived for calculating the accumulated plastic strain, in which the influencing factors such as the amplitude and number of cyclic loading, the cyclic static deviator stress and the static strength are considered. By regarding the accumulated plastic deformation under long-term cyclic loading as static creep, a constitutive model is presented. The modified Cam Clay model is incorporated in the proposed model to determine the initial stress condition which is necessary for subsequent calculation of accumulated plastic strain. Then, the proposed model is implemented in a finite-element formulation by using an implicit stress integration algorithm. Finally, this model is evaluated and validated through the applications to specific boundary value problems including element tests presented in Part I, a flexible shallow foundation subjected to long-term cyclic load and a road with a low embankment subjected to traffic load. The proposed methodology can be used to calibrate the design of dynamic machine foundation, road and others that involve long-term repetitive loading. |
| 资助项目 | National Natural Science Foundation of China[41402277] ; National Natural Science Foundation of China[11702304] ; State Key Development Program for Basic Research of China[2010BC732101] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000514014100044 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23600]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Chen, Cheng |
| 作者单位 | 1.Zhongyuan Univ Technol, Coll Architecture & Civil Engn, Zhengzhou 450007, Peoples R China 2.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 | Chen, Cheng,Xua, Guofang,Zhou, Zhengming,et al. Undrained dynamic behaviour of peaty organic soil under long-term cyclic loading, Part II: Constitutive model and simulation[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2020,129:10. |
| APA | Chen, Cheng,Xua, Guofang,Zhou, Zhengming,Kong, Lingwei,Zhang, Xianwei,&Yin, Song.(2020).Undrained dynamic behaviour of peaty organic soil under long-term cyclic loading, Part II: Constitutive model and simulation.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,129,10. |
| MLA | Chen, Cheng,et al."Undrained dynamic behaviour of peaty organic soil under long-term cyclic loading, Part II: Constitutive model and simulation".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 129(2020):10. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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