岙山成品油码头海底边坡稳定性分析

Analysis of the slope stability for Aoshan oil wharf

根据岙山成品油码头工程地质勘察所得的资料，选择边坡较陡的地段，采用折线法、圆弧条分法和总应力极限平衡法，对在自重、地震力和波浪力等因素作用下的边坡稳定性进行验算分析。结果表明，海底边坡较陡地段浅层土体的稳定性较差，土体滑动面可能发生在海底下９～１２．５ｍ处。对地层的作用波浪力较地震力要小，但两者均可能成为边坡土体滑动的诱因。

Based on the investigation data in Aoshan oil wharf, in the steeper slope area, the slope stability under selfgravity, earthquake force and wave force effects was analyzed by using broken line method, slice method and gross stress limit equilibrium method. The results indicate that the layer in the more steep slope area is not good for stability, and the sliding interface might occur in 9 ￣ 12 5 m depth under the sea bottom. Although the effect of wave force is less than earthquake force s, both earthquake and wave force may be the cuase of sliding.