Cracking of Embankment Dams Under Normal Operating, and Flood Conditions, and the Implications for Internal Erosion and Piping Failure

正常运行和洪水条件下堤坝的开裂，以及对内部侵蚀和管道故障的影响

• 批准号: ARC : LP0219306
• 负责人: Prof Robin Fell
• 金额: $ 12.85万
• 依托单位: The University of New South Wales
• 依托单位国家: 澳大利亚
• 项目类别: Linkage Projects
• 财政年份: 2002
• 资助国家: 澳大利亚
• 起止时间: 2002-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/cracking-embankment-dams-piping-failure/72662
• 关键词: Cracking; Embankment; Dams; Under; Normal

Cracking of Embankment Dams Under Normal Operating, and Flood Conditions, and the Implications for Internal Erosion and Piping Failure. Internal erosion and piping causes half of embankment dam failures and accidents. Historically about two percent of dams have been affected. The most common cause of initiation of erosion is in cracks or by hydraulic fracture in low stress zones. This project will develop methods for predicting the opening width and depth of desiccation and stress induced cracking in the dam crest, and for assessing whether the cracks will close before erosion begins as the reservoir water rises, or whether erosion will self limit or continue.

在正常运行和洪水条件下土石坝的开裂，以及内部侵蚀和管涌破坏的影响。内部侵蚀和管涌导致一半的堤坝失效和事故。从历史上看，大约有2%的水坝受到影响。最常见的腐蚀原因是低应力区的裂缝或水力压裂。本项目将开发各种方法，用于预测大坝顶部干燥和应力诱导裂缝的开口宽度和深度，并评估裂缝是否会在水库水位上升时侵蚀开始之前闭合，或者侵蚀是否会自我限制或继续。