| Autor: |
Wang, Yong-sheng, Ye, Wei, Liu, Hao, Gao, Quanping, Li, Ji-xin, Ding, Rui-heng, Rui, Rui |
| Předmět: |
|
| Zdroj: |
Arabian Journal of Geosciences; Mar2024, Vol. 17 Issue 3, p1-12, 12p |
| Abstrakt: |
The plate anchor has been commonly used to stabilize the sheet pile walls, bridge abutments, transmission towers, and mooring systems by providing uplift resistance. This study included a series of numerical simulations to investigate the uplift capacity of plate anchors and the failure mechanisms of overburden soil using the elastoplastic finite element method. Numerical modeling was verified using the model test results from the literature and showed good agreement. Numerical simulations in this study considered different soil internal friction angles, dilation angles, and embedment ratios (the ratio of embedment depth H to plate anchor width B). The overburden soil was classified as shallow embedment and deep embedment based on different failure mechanisms. The threshold value of embedment ratio for the shallow embedment and deep embedment increased as soil internal angle and dilation angle increased. During the uplift of the plate anchor, two straight slip surfaces gradually extended from the edge of the plate anchor to the surface of overburden soil at shallow embedment, while two-segment polylines occurred with a rigid core inside at deep embedment. The uplift capacity factor increased as the soil internal angle, dilation angle, and embedment ratio increased. To reflect the practical influence of dilation angle, an internal friction angle reduction method was introduced to modify Kumar and Kouzer's method. The calculated uplift capacity factor from the modified Kumar and Kouzer's method well matched the calculated from the numerical simulations. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
Full text from SpringerLink