水合物对海底边坡稳定性的影响

A brief analysis of influence of hydrate on submarine slope stability

为探究水合物对海底边坡稳定性的影响,以某海底边坡作为计算实例,基于ABAQUS及强度折减法对不同工况的海底边坡稳定性进行模拟,模拟显示含水合物海底边坡的塑性区分布于水合物及坡脚处,随后向上延伸至坡顶,形成一条贯通带。模拟证明水合物对海底边坡稳定性的影响较大,可为日后建设海底边坡工程提供一定的思路。

In order to explore the influence of hydrate on the stability of submarine slope,this paper takes a submarine slope as an example,and simulates the stability of submarine slope under different working conditions based on ABAQUS and strength reduction method.The simulation shows that the plastic zone of submarine slope containing hydrate will be distributed at hydrate and slope toe,and then extend upward to the top of slope to form a through zone.The simulation conclusion indicates hydrate has great influence on the stability of submarine slope,which can lay a certain foundation for future submarine slope engineering.