Structural Deformation Analysis of Double-Row PC Pile Cofferdam by Finite Element Numerical Simulation and Actual Project Monitoring

DOI

10.2991/978-94-6463-473-0_13How to use a DOI?

Keywords

PC pile; cofferdam; deep silty soil foundation; structural deformation; finite element simulation; numerical simulation; deformation monitoring

Abstract

In coastal areas, hydraulic projects often involve deep silty soil foundations, drawing attention to the selection of cofferdam support structures at such project sites. The commonly used cofferdam structure for such sites is the double-row steel sheet pile cofferdam. However, this type of cofferdam has drawbacks such as low overall structural stiffness, difficulty in removal, and high cost. The double-row pipe combination (PC) pile cofferdam, which has a higher overall structural stiffness and advantages in reducing structural deformation and project cost, has gained widespread attention. Taking a specific cofferdam project located in a foundation with deep silty soil as an example, a double-row PC pile cofferdam was adopted. Through numerical simulation analysis, the deformation performances of the double-row PC pile cofferdam were analysed. Finally, a double-row PC pile cofferdam was successfully applied, and the deformation of the cofferdam was monitored and compared with the simulation results. The results indicate that the difference between the numerical simulation results and the monitoring data is relatively small. The horizontal displacement of the structure is within the safe range allowed by the regulations. The research findings of this paper are expected to provide valuable references for the selection of cofferdam structural forms in deep and thick silty soil.

Copyright

© 2024 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Hao Wu
AU  - Cong Yuan
AU  - Guochun Xia
AU  - Yongjun Wu
AU  - Dongdong Wang
AU  - Wei Zhang
AU  - Changshen Zhang
AU  - Jianchun Qiu
PY  - 2024
DA  - 2024/08/22
TI  - Structural Deformation Analysis of Double-Row PC Pile Cofferdam by Finite Element Numerical Simulation and Actual Project Monitoring
BT  - Proceedings of the 2024 3rd International Conference on Applied Mechanics and Engineering Structures (AMES 2024)
PB  - Atlantis Press
SP  - 117
EP  - 126
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-473-0_13
DO  - 10.2991/978-94-6463-473-0_13
ID  - Wu2024
ER  -