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原文传递 Conceptual Evaluation of Tsunami Debris Field Damming and Impact Forces

题名：	Conceptual Evaluation of Tsunami Debris Field Damming and Impact Forces
正文语种：	英文
作者：	Krishnendu Shekhar, S.M.ASCE; Andrew O.Winter; Mohammad S. Alam, A.M.ASCE; Pedro Arduino; Gregory R. Miller, M.ASCE; Michael R. Motley; Marc O.Eberhard; Andre R. Barbosa, A.M.ASCE; Pedro Lomonaco, A.M.ASCE;Daniel T. Cox
作者单位：	Univ, of Washington;Oregon State Univ
关键词：	Collision; Damming; Debris; Debris field; Experiment; Flume; Force; Impact; Multiple debris; rfsunami; Wave
摘要：	The damage caused by tsunamis to coastal communities is often not only the result of the flowing water itself, but also of transported debris. Although there have been efforts to characterize forces from single-debris impacts, a more general scenario of multiple-debris impacts has not been studied experimentally. To address this need, experimental studies were perfonned, considering the effect of debris orientation and the number of debris field components on peak impact and damming forces on coastal structures. These forces are evaluated both qualitatively and quantitatively to provide insight into the nature of these impacts. For a fow selected cases, a number of trials were conducted and an initial statistical study of the debris field collision phenomena performed. Observed forces and results are presented in terms of normalized quantities using analytical equations commonly used to calculate impact or drag forces. The lessons from this work provide an initial data set that can be used to guide further experimental and numerical studies on debris-laden tsunami flows.
出版日期：	2020.11-12
出版年：	2020
期刊名称：	Journal of Waterway, Port, Coastal, and Ocean Engineering
卷：	Vol146
期：	No05
页码：	04020039