Unified Evaluation Method for Wave-Induced Massive Movement of Slightly Sloping Seafloor

微倾斜海底波浪引起的大规模运动统一评价方法

• 批准号: 8915145
• 负责人: Toyoaki Nogami
• 金额: $ 19万
• 依托单位: University of California-San Diego
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-02-01 至 1994-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8915145&HistoricalAwards=false
• 关键词: Unified; Evaluation; Method; Wave; Induced

Severe storm waves can cause downslope mass movements of a sloping seafloor in various magnitudes including massive failure. Permanent displacements, even not reaching a massive failure, can be large enough to be destructive to structures on or in the seafloor. Therefore, in offshore and coastal development, both the magnitude of permanent displacements and possibility of a massive failure must be evaluated for intensive wave loading in order to avoid catastrophic consequences. This research will develop a practical and yet rational analysis-based method to evaluate wave loading in a systematic manner for slightly sloping seafloors. The displacement-based approach will be adopted since it can account for various complexities of wave-induced environments in a failure evaluation and, at the same time, can provide the magnitude of the permanent displacements. The evaluation method will be developed through wave tank model tests, case history studies and analytical studies, and will be coded in a computer program.

强烈的风暴波会导致滑坡的质量运动， 不同程度的倾斜海底，包括巨大的 失败 长期流离失所，甚至没有达到 大规模的失败，可能大到足以破坏 在海底或在海底的建筑物。 因此，在海上和 沿海发展，无论是永久性的规模 位移和大规模失败的可能性必须是 评估了强烈的波浪载荷，以避免 灾难性的后果。 这项研究将开发一个 一种实用而又合理的基于分析的评估方法， 波浪荷载以系统的方式为轻微倾斜 海底 将采用以位移为基础的方法 因为它可以解释波浪引起的各种复杂性， 环境中的故障评估，同时， 可以提供永久位移的大小。 将通过波浪水槽开发评价方法 模型测试、案例历史研究和分析研究，以及 都将被编入电脑程序