Mechanics of Overflow Erosion on Embankments. II: Hydraulic and Design Considerations
Mechanics of Overflow Erosion on Embankments. II: Hydraulic and Design Considerations
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DOI：
10.1061/(asce)0733-9429(1989)115:8(1056
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发表时间：
1989-08
影响因子：
2.4
通讯作者：
G. R. Powledge;D. C. Ralston;P. Miller;Yung-Hai Chen;P. Clopper;D. Temple
中科院分区：
文献类型：
--
作者：
G. R. Powledge;D. C. Ralston;P. Miller;Yung-Hai Chen;P. Clopper;D. Temple
这是“堤坝溢流力学，第一部分--研究活动”的配套报告。它讨论了水流在路堤上流动的水力学，这被认为是理解漫顶过程中侵蚀过程的基础。回顾了受溢流洪水影响的堤防的性态。进一步的信息是基于研究结果和经历过溢流的堤坝、堤坝和道路的实际案例历史而开发的。本报告还提供了为防止溢流期间堤坝、道路和堤坝受到侵蚀而开发的各种防护系统的资料，包括第一部分中测试的防护系统，还讨论了为允许溢流而对堤坝进行几次具有成本效益的修改的案例。通过使用这些水力和设计考虑因素获得的知识为工程师和大坝所有者提供了进一步的信息，使他们能够制定具有成本效益的措施，使堤坝能够通过极端洪水事件而不发生决口。
This is a companion report to “Mechanics of Overflow on Embankments, Part I - Research Activities.” It discusses the hydraulics of water flowing over an embankment which is considered to be the basis for understanding the erosion process during overtopping events. The behavior of embankments that are subjected to overflow flood events are reviewed. Further information is developed based on results of research and actual case histories of embankments dams, levees, and roadways that have experienced overtopping. This report also provides information on the various protection systems that have been developed to prevent erosion of dam, roadway and levee embankments during overflow, including those tested in Part I. Case histories of several cost effective modifications made to embankment dams to permit overtopping are also discussed. The knowledge gained from using these hydraulic and design considerations provides the engineer and dam owner further information in the development of cost effective measures that allow embankments to pass extreme flood events without breaching.