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Water 2011, 3(3), 894-905; doi:10.3390/w3030894

Mudflows: Assessment of Energy Dissipation on an Experimental Bottom Grid Device

Department of Hydraulic, Geotechnical and Environmental Engineering, University of Naples Federico II, via Claudio 21 Napoli, Italy
Received: 15 July 2011 / Revised: 31 August 2011 / Accepted: 1 September 2011 / Published: 13 September 2011
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Abstract

Grid devices with a terminal wall barrier have been widely used for dissipation of energy load of water piped from the outfall works of artificial reservoirs. The satisfactory results obtained have led to the commitment to usage of such devices, with good results even in the case of mudflows for which design criteria were suggested. In this study, the experimental results of an evaluation of pressure on a vertical terminal wall are shown with the evaluation of the overall hydrodynamic thrust. The correct evaluation of the dynamic impact of a mudflow front against a structure is an important task in its design procedure. The hydrodynamic drive calculated from the tests with corresponding theoretical model values derived has shown a good matching. According to the test and speed range detected, the maximum dissipation rate due to the wall was about 35% of the available total load.
Keywords: mudflows; energy dissipation; hydrogeological risk; bottom grid device mudflows; energy dissipation; hydrogeological risk; bottom grid device
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Paola, F.D. Mudflows: Assessment of Energy Dissipation on an Experimental Bottom Grid Device. Water 2011, 3, 894-905.

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