Investigation of potential spudcan punch through failure

潜在桩钉穿透故障的调查

• 批准号: LP0561838
• 负责人: Prof Mark Cassidy
• 金额: $ 9.81万
• 依托单位: The University of Western Australia
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2005
• 资助国家: 澳大利亚
• 起止时间: 2005-12-22 至 2009-03-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/LP0561838
• 关键词: Investigation; potential; spudcan; punch; through

The safe and economic use of mobile jack-up structures is critical to the prosperous development of Australia's significant offshore oil and gas industry. However, their use is hindered by potential 'punch-through' failure during installation, when their large conical footings can unexpectedly and uncontrollably push a locally strong zone of soil into underlying softer material. To improve their safety, this research will investigate a potential new site-investigation procedure and develop an appropriate calculation method for predicting failures for sites where sand overlies clay. Results will be based on a series of innovative physical and numerical experiments, and assessed against field data and existing industry standards.

移动式自升式结构的安全和经济使用对于澳大利亚重要的海上石油和天然气工业的繁荣发展至关重要。然而，它们的使用受到安装过程中潜在的“击穿”故障的阻碍，因为它们的大圆锥形基础可能会意外且无法控制地将局部坚固的土壤区域推入下面的较软材料中。为了提高其安全性，本研究将研究一种潜在的新现场调查程序，并开发一种适当的计算方法来预测沙子覆盖粘土的现场的故障。结果将基于一系列创新的物理和数值实验，并根据现场数据和现有行业标准进行评估。