Experimental Test of Debris Flow Initiation Model

泥石流引发模型实验测试

• 批准号: 9610269
• 负责人: David Montgomery
• 金额: $ 21.93万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-10-01 至 2000-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9610269&HistoricalAwards=false
• 关键词: Experimental; Test; Debris; Flow; Initiation

9610269 Montgomery Shallow landslides repeatedly cause loss of life, injury, and economic and environmental damage in the mountainous regions of the country and the world. Assessment of slope instability and debris flow initiation is the topic of this project in which four main issues will be addressed: (1) determining the input parameters for use in physically based slope stability models: (2) testing of predictions of the rainfall required to trigger landsliding and mobilization of a debris flow; (3) identifying the deformation mechanisms that produce debris flows: and (4) modeling long-term erosion rates by shallow landsliding. The data generated in the initial field work will be used in developing a deterministic slope stability model. The resulting predictions will be tested in a field experiment designed to trigger slope failure. The results will then be used to guide stochastic modeling and empirical studies for establishing long- term models of sediment transport by landsliding, and hence for identifying risk. The results of this project will demonstrate the utility and limits of models representing field conditions which in turn can be sued to assess and mitigate this hazard. ***

9610269蒙哥马利浅水滑坡反复造成该国和世界山区的生命，伤害以及经济和环境破坏。 斜率不稳定性和碎片流启动的评估是该项目的主题，在该项目中将解决四个主要问题：（1）确定用于在物理基于物理的斜率稳定性模型中使用的输入参数：（2）触发降雨量预测的测试，以触发降雨量的预测和碎屑流动的动员； （3）确定产生碎屑流的变形机制：（4）通过浅层滑坡对长期侵蚀率进行建模。 初始现场工作中生成的数据将用于开发确定性的斜率稳定性模型。 最终的预测将在旨在触发斜率故障的现场实验中进行测试。 然后，该结果将用于指导随机建模和经验研究，以建立通过陆滑的长期模型运输的长期模型，从而确定风险。 该项目的结果将证明代表现场条件的模型的实用性和限制，这些模型又可以起诉以评估和减轻这种危害。 ***