Random field model of soil parameters and the application in reliability analysis of laterally loaded pile
文献类型：期刊论文
| 作者 | Zhang Xiao-ling1; Jiao Bo-han1; Han Yan2; Chen Shong-loong3; Li Xiu-yu1 |
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2021-08-01 |
| 卷号 | 147页码:8 |
| 关键词 | Undrained shear strength Spatial variability Random field Failure probability of pile |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2021.106821 |
| 通讯作者 | Han Yan(xiaolingzhang@bjut.edu.cn) |
| 英文摘要 | The bearing capacity of pile under horizontal load is not only related to pile size and pile material, but also closely related to soil parameters. In this paper, based on the probability analysis method of random field theory, a non-stationary random field model is firstly proposed for the undrained shear strength Su of soil. In this model, the uncertainty of the increase trend of Su along the direction of depth is taken into account, and the mean value and standard deviation of random field increase linearly along the depth. Then, by comparing with other random field models, the applicability of the non-stationary random field model for undrained shear strength proposed in this paper is verified. Finally, the random field model is applied to the reliability evaluation of horizontally loaded pile, and the influence of the spatial variability of undrained shear strength on the failure probability of horizontally loaded pile is discussed. The results show that the coefficient of variation and correlation length of undrained shear strength have obvious influence on the failure probability of pile foundation. The uncertainty of increase rate b of undrained shear strength with depth also has influence on the failure probability of pile foundation. If the spatial variability of the soil parameters is not considered in the evaluation and design of pile foundation, the failure probability of pile foundation will be large, which will make the design results of pile biased toward conservative. |
| WOS关键词 | SLOPE STABILITY ; SHEAR-STRENGTH |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000725410900002 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/168351]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Han Yan |
| 作者单位 | 1.Beijing Univ Technol, Minist Educ, Key Lab Urban Secur & Disaster Engn, Beijing 100124, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 3.Natl Taipei Univ Technol, Dept Civil Engn, Taipei 10608, Taiwan |
| 推荐引用方式 GB/T 7714 | Zhang Xiao-ling,Jiao Bo-han,Han Yan,et al. Random field model of soil parameters and the application in reliability analysis of laterally loaded pile[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2021,147:8. |
| APA | Zhang Xiao-ling,Jiao Bo-han,Han Yan,Chen Shong-loong,&Li Xiu-yu.(2021).Random field model of soil parameters and the application in reliability analysis of laterally loaded pile.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,147,8. |
| MLA | Zhang Xiao-ling,et al."Random field model of soil parameters and the application in reliability analysis of laterally loaded pile".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 147(2021):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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