In the whole construction process of immersed tunnels,especially those in offshore areas,the deep foundation trench typically faces issues such as the complex influences of ocean currents and sediment siltation,which adversely affect the safety and stability of the trench slopes.Based on the Shenzhen-Zhongshan Bridge immersed tunnel project,the safety factors and failure characteristics of underwater trench slopes in the corresponding conditions were analyzed by numerical simulation method through the research of factors such as slope morphology,the distribution of sediment siltation on the slope,and the ocean current loads.The results indicate that the soil characteristics and geometric shape of the slope,the distribution and thickness of sediment siltation,and the magnitude and direction of ocean current load could all have varying degrees of impact on the stability of the foundation trench slope.
关键词
水下边坡/回淤物/海流荷载/边坡稳定
Key words
underwater slope/sediment siltation/ocean current load/slope stability
维普
万方数据