Jianjun Shen, Zheng Tang, Feng Jia, Zhen Liu, Jingru Hou
Journal of Terramechanics, Volume 112, 2024, Pages 45-57, ISSN 0022-4898
https://doi.org/10.1016/j.jterra.2023.12.002.(https://www.sciencedirect.com/science/article/pii/S0022489823000988)
Abstract: The working parameters of vibratory rollers have an important effect on the compaction quality. The traditional method of obtaining the best working parameters through field tests is time-consuming and laborious. In order to determine the best working parameters more conveniently and accurately, a mechanical-hydraulic-finite element co-simulation method is proposed in this paper. This method considers the effect of the hydraulic system on vibration compaction and makes the simulation result as close to the actual condition as possible. By analyzing the change of soil stress and settlement, the effect regulation of working parameters on compaction quality is obtained. The results show that the proposed co-simulation method can accurately reflect the real conditions, and the best compaction quality can be achieved when the walking speed is 3 km/h, the vibration frequency is 24 Hz, and the amplitude is 2.5 mm. The research provides a reference for improving the compaction quality and compacting-related simulation.
Keywords: Vibratory compaction; Co-simulation; Hydraulic system; Finite element; Optimal working parameter