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Design of Earthen Levee Strengthening with HPTRM for Hurricane Overtopping Conditions
Overtopping of earthen levees produces fast-flowing, turbulent water velocities on the landside slope that can damage the protective grass covering and expose the underlying soil to erosion. In this study, the design of an innovative levee strengthening technique - High Performance Turf Reinforcement Mat (HPTRM) is developed based on true full-scale flume tests conducted during overtopping conditions simulating waves or combined wave and storm surge. As the grass roots grow through the open space of HPTRM, roots become entwined within the turf reinforced mat. The interlocking between roots and HPTRM can enhance the resistance against hydraulic and shear forces created by high water flow hydraulic condition. Flow velocity, shear stress and average overtopping velocity on landward-side slope and levee crest are measured and calculated. This paper presents new equations for hydraulic overtopping parameters, and design guidelines for combined wave and surge overtopping conditions.
Design of Earthen Levee Strengthening with HPTRM for Hurricane Overtopping Conditions
Overtopping of earthen levees produces fast-flowing, turbulent water velocities on the landside slope that can damage the protective grass covering and expose the underlying soil to erosion. In this study, the design of an innovative levee strengthening technique - High Performance Turf Reinforcement Mat (HPTRM) is developed based on true full-scale flume tests conducted during overtopping conditions simulating waves or combined wave and storm surge. As the grass roots grow through the open space of HPTRM, roots become entwined within the turf reinforced mat. The interlocking between roots and HPTRM can enhance the resistance against hydraulic and shear forces created by high water flow hydraulic condition. Flow velocity, shear stress and average overtopping velocity on landward-side slope and levee crest are measured and calculated. This paper presents new equations for hydraulic overtopping parameters, and design guidelines for combined wave and surge overtopping conditions.
Design of Earthen Levee Strengthening with HPTRM for Hurricane Overtopping Conditions
Li, Lin (author) / Amini, Farshad (author) / Pan, Yi (author)
2013
5 Seiten, Bilder, Quellen
Conference paper
Storage medium
English
British Library Conference Proceedings | 2015
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