港口航道与近海工程2024，Vol.61Issue(1)：1-7,7.DOI:10.16403/j.cnki.ggjs20240101
基于流固耦合的沉管工程基槽边坡稳定性研究
Research on Trench Slope Stability in Immersed Pipe Engineering Based on Fluid-Structure Interaction
摘要
Abstract
In recent years,more and more paths,long-distance water pipelines go under river or sea.Based on Shaying River immersed pipe works of Fuyang water supply section in Water Transfer Project from the Yangtze River to Huaihe River,research is carried out for the stability of the immersed pipe trench slope impacted by water flow.Simulation test is conducted on the soil slope under open trench by using FLUENT-MPCCI-ABAQUS coupling method.The results show low pressure zone inside the trench,high pressure zone at the top of the trench in the dynamic water pressure field.The dynamic pressure acting on the top of the slope against water flow is always lower than that on the slope along water flow,and the influence of water flow on the stability of the former is greater than that on the stability of the latter.In addition,the empirical formula for the safety factor of trench slope is obtained on the basis of flow velocity and slope ratio by fitting fluid-structure interaction data.关键词
沉管工程/水下边坡/流固耦合/边坡稳定性Key words
immersed pipe engineering/underwater slope/fluid-structure interaction/stability of slope分类
水利科学引用本文复制引用
杨冀亮..基于流固耦合的沉管工程基槽边坡稳定性研究[J].港口航道与近海工程,2024,61(1):1-7,7.基金项目
中国电建市政建设集团有限公司科技项目(ZDXM-2019-02). （ZDXM-2019-02）
