内河大水位差条件下的码头岸坡稳定性分析  

Stability analysis of wharf slope under large water level difference in inland river

作　　者：周世良[1] 王全[1] 吴飞桥[1] 李丰华[1] 

机构地区：[1]重庆交通大学河海学院,重庆400074

出　　处：《水运工程》2010年第3期81-84,共4页Port & Waterway Engineering

基　　金：重庆市高校优秀人才支持计划资助课题(2008-1-26)

摘　　要：我国西南地区地势复杂,内河水位变化幅度很大,水位的变化使得内河码头的边坡含水量产生变化,由此引起的边坡水流渗透对码头的稳定性会造成很大的影响。采用理想弹塑性模型和摩尔库伦屈服准则进行数值模拟,通过对架空斜坡式码头岸坡在水位变化条件下的稳定性分析,得出了水位下降过程中各种因素对岸坡的影响;同时发现,岸坡岩土材料的黏聚力对岸坡的稳定性影响要大于内摩擦角。Because of the complex topography in southwest region of China,the water level of the inland river has a large amplitude of variation which causes a frequent diversification of the water content in the river slope.The flow caused by the infiltration of the terminal slope stability will induce a great impact on the slope stability of wharf.This paper uses an ideal elastic-plastic model and the Moore Coulomb yield criterion for numerical simulation.Through the bank slope stability of the overhead-type terminals under the changes of water,we obtained the impact of all factors on the bank slope in the course of water lowering.It was found out that the impact from the cohesion of the geo-materials of the bank slope on the slope stability is greater than that from the internal friction angle.

关 键 词：岸坡 三峡库区 强度折减 渗流 

分 类 号：TV622[水利工程—水利水电工程]