Reliability-based geotechnical design

基于可靠性的岩土工程设计

• 批准号: 105445-2011
• 负责人: Fenton, Gordon
• 金额: $ 1.46万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=521933
• 关键词: Reliability; based; geotechnical; design

The ground on which we found our structures is one of the most variable and uncertain of all engineering materials and is therefore highly amenable to a probabilistic treatment. Since geotechnical engineers must often make do with the existing ground at a site, a key question in any geotechnical design then becomes "How should we design our geotechnical system so as to achieve an acceptable safety level?" The question involves a number of other important issues such as: How can we reduce our uncertainty about the ground's engineering properties? How confident are we in our prediction and design models? How should we adjust our designs to account for differing failure consequences? And, most importantly, how should design codes be implemented in order to address all of these issues and still arrive at societally acceptable levels of safety?

我们发现结构的地面是所有工程材料中变化最大、不确定性最大的地面之一，因此非常适合概率处理。由于岩土工程师必须经常利用现场的现有地面，因此任何岩土工程设计中的一个关键问题就变成了“我们应该如何设计我们的岩土系统才能达到可接受的安全水平？”这个问题涉及许多其他重要问题，例如：我们如何减少对地面工程特性的不确定性？我们对我们的预测和设计模型有多大信心？我们应该如何调整我们的设计以应对不同的故障后果？最重要的是，应该如何实施设计规范才能解决所有这些问题并仍然达到社会可接受的安全水平？