基于强度折减法的海底边坡三维稳定性分析  

Analysis of 3-D modeling subsea-slope stability based on strength reduction methods

作　　者：张恒[1] 来向华[1] 廖林燕 黄潘阳[1] 

机构地区：[1]国家海洋局第二海洋研究所,工程海洋学重点实验室,浙江杭州310012 [2]上海石油天然气有限公司,上海200041

出　　处：《水运工程》2016年第4期148-153,159,共7页Port & Waterway Engineering

基　　金：国家自然科学基金项目(51179169);上海市科学技术委员会科研计划项目(14DZ1204600);国家海洋局第二海洋研究所科研业务费专项(JG1307)

摘　　要：为了分析波浪荷载作用下海底边坡的稳定性,通过Visual C#语言平台开发数值接口程序,实现了地质三维建模程序Gocad和有限元分析程序Abaqus的数据转换,即有限元程序在海底复杂的地貌和地形条件下三维建模。同时开发了Abaqus力学场数据处理程序,可以实现Abaqus在强度折减法下的边坡稳定性分析。通过分析波浪作用下舟山朱家尖岛海域海底边坡稳定性,评判该边坡的稳定性。计算结果表明,波浪荷载对海底边坡稳定性会产生一定的影响,朱家尖岛附近海域海底边坡有滑坡的风险。To analyze the subsea-slope stability affect by the wave load, we use Visual C# software language platform to develop an application programming interface and realize the data transfer between the Gocad and Abaqus. With the basic contour map, the complex seabed topography could be 3-D modeled in Abaqus. We also develop a program to treat the mechanics field in Abaqus and realize the stability analysis of subsea-slope by the strength reduction method. Based on the analysis of the subsea slope stability of Zhujiajian island in Zhoushan, we adjust the the stability of the side slope. The calculation result shows that wave load will exert certain impact on the subsea-slope, and the subsea-slop near Zhujiajian island faces landslide risk.

关 键 词：有限元分析 强度折减法 数值应用程序接口 场处理程序 海底边坡稳定性 

分 类 号：P753[交通运输工程—港口、海岸及近海工程] TU44[天文地球—海洋科学]