Izvorni znanstveni članak
https://doi.org/10.21278/brod77403
Experimental study on piling and penetration behavior of jack-up offshore platforms on layered seabed foundations
Zailiang Liu
; School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Jin Shi
; School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
Xiaobin Li
; School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
Yonghe Xie
; School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
Zhi Xu
; School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
Chenyang Liu
; School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
Yuelin Song
; School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan 316022, China
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* Dopisni autor.
Sažetak
This study aims to design a novel experimental system for replicating the bearing capacity behavior of layered seabed foundations during the process of leg piling and penetration. A test apparatus for a jack-up offshore platform was developed, with a telescopic pile foundation hydraulic cylinder mounted at the base of platform leg to achieve experimental investigation of penetration behavior through layered seabed soils. A servo-hydraulic system model was developed by incorporating the Proportional-Integral-Derivative (PID) control algorithm into the proportional valve control system, thereby realizing dynamic simulation of various penetration depths and soil bearing capacities through precise hydraulic cylinder pressure regulation. A series of simulation analyses and experimental tests were conducted to delve into the variation in bearing capacity during the piling process, with a focus on the influence of soil shear strength, layer thickness, and backfill characteristics. The findings indicate that the experimental system exhibits a high level of accuracy in simulating the bearing capacity of complex layered seabed foundations, with an overall error maintained within 15 %. This study provides an experimental methodology and technical approach for simulating the process of pile leg penetration in the investigation targeting the structural integrity and stability of offshore platforms.
Ključne riječi
Jack-up platform; piling; leg penetration; experimental system; hydraulic control
Hrčak ID:
351201
URI
Datum izdavanja:
1.10.2026.
Posjeta: 0 *