Research on Settlement Control and Slope Stability of Prefabricated Beam Field for High Fill Roadbed in Mountain Areas

Chao  Xiaohui; Xu  Yu; Deng  Honglong

doi:10.6180/jase.202504_28(4).0011

Research on Settlement Control and Slope Stability of Prefabricated Beam Field for High Fill Roadbed in Mountain Areas

Chao Xiaohui¹, Xu Yu¹, Sun Yingyi²This email address is being protected from spambots. You need JavaScript enabled to view it., and Deng Honglong¹

¹CCCC Second Highway Engineering Co., Ltd.,Xi’an 710119, China

²School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

Received: December 15, 2023
Accepted: May 6, 2024
Publication Date: June 11, 2024

Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

Download Citation: ||https://doi.org/10.6180/jase.202504_28(4).0011

Due to the limitation of mountainous terrain, it is difficult to transport prefabricated components for bridges, and prefabricated girder yards are arranged on high-fill roadbeds to solve the transportation problem of prefabricated components. Therefore, numerical simulation was used to analyze the deformation effect of prefabricated girder yards on high-fill slopes, and the strength discount method was used to analyze the influence of high-fill slope filling process and prefabricated component production process on slope stability. The study demonstrates that the prefabricated girder yard has a minor impact on the maximum settlement of the slope. However, it significantly affects the settlement of the lower fill layer within its range. During the filling of high-fill roadbed slopes, the plastic zone tends to develop along the direction parallel to the upper fill layer’s side slopes. The area posing the greatest risk on the side slopes is the fill layer situated where the prefabricated girder yard is positioned.

Keywords: Precast girder yard; High fill slope; Slope settlement; Numerical simulation

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