港口航道与近海工程2025，Vol.62Issue(5)：50-55,6.DOI:10.16403/j.cnki.ggjs20250511
桩靴贯入对临近边坡稳定性影响及回填方案研究
Study on Backfill Plan and Influence of Pile Boots Penetration on Adjacent Slope Stability
王超 1刘征 1郝纪 1王庭元2
作者信息
- 1. 中海油能源发展装备技术有限公司,天津 300452
- 2. 天津大学建筑工程学院,天津 300072
- 折叠
摘要
Abstract
CEL finite element method was used to investigate the adjacent slope stability during the process of pile boots penetration of jack-up drilling rigs,and special stress was laid on the influencing rule of different backfill plans on the displacement of pile boots.The results showed effectively control of the displacement of pile boots subject to a critical backfill depth.However,excessive backfill triggered a reverse slip effect due to the difference of density between the backfill material and in-situ soil.When the backfill density exceeded that of in-situ soil,the increased backfill depth reversed the slip direction and amplified the displacement pile boots.In engineering practice,the residual depth threshold value in the backfill layer should be optimized through the comparative analysis of the densities of backfill material and in-situ soil subject to effective backfill depth.The findings provided a theoretical basis for matching pile boots penetration parameters with the backfill strategies in similar projects.关键词
桩靴贯入/边坡稳定性/回填材料/回填深度Key words
pile boots penetration/slope stability/backfill material/backfill depth分类
建筑与水利引用本文复制引用
王超,刘征,郝纪,王庭元..桩靴贯入对临近边坡稳定性影响及回填方案研究[J].港口航道与近海工程,2025,62(5):50-55,6.
