Development of Models for the Three-Dimensional Analysis of Jack-Up Structures

自升式结构三维分析模型的开发

• 批准号: DP0345424
• 负责人: Prof Mark Cassidy
• 金额: $ 15.86万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2006-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0345424
• 关键词: Development; Models; Three; Dimensional; Analysis

Mobile jack-up structures perform most of the world's offshore drilling in water depths up to 120m, but have a higher accident rate then fixed installations. To improve their safety, this research will develop the framework for the integrated assessment of jack-up behaviour in three dimensions. To achieve this, an advanced plasticity model that describes cyclic behaviour of the circular shallow foundations of jack-ups in both clay and sand will be developed and incorporated with random wave loading of seas in a dynamic structural analysis program. The anticipated advantages of the modelling techniques will be assessed against existing two dimensional industry guidelines and monitored field data.

移动式自升式结构在水深达120米的水域进行世界上大部分海上钻探，但事故率高于固定设施。为了提高自升式平台的安全性，本研究将从三个维度开发自升式平台行为的综合评估框架。为了实现这一点，将建立一个描述粘土和砂土中自升式圆形浅基础循环特性的高级塑性模型，并将其与海浪随机荷载结合在一个动力结构分析程序中。将对照现有的二维行业准则和受监测的实地数据来评估建模技术的预期优势。