DBPapers
DOI: 10.5593/sgem2017/31/S12.021

CONSIDERATIONS ON WATER STORAGE LAKES SAFETY IN CASE OF EXTREME METEOROLOGICAL PHENOMENA. CASE STUDY-MILEANCA WATER STORAGE LAKE

T.A. Hraniciuc, P. Cercel, F. Trofin, C. Boariu, C. Bofu
Monday 11 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-04-1 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 31, 165-172 pp, DOI: 10.5593/sgem2017/31/S12.021

ABSTRACT

Construction of water storage lakes, necessary for different uses (irrigation in agriculture, water supply for population), implies sizing of the facility so that it can permit the transition of flood flows that could happen on the river where the water storage lake is positioned (built). Such a water storage lake is dimensioned, according to normative standards, for a flood which corresponds to a certain probability calculation. Taking into account the fact that frequently from the moment of finishing the construction until this day have passed more than 30-40 years, and that due to climate changes and anthropic intervention hydrological conditions changed, the question arises how such a water storage lake behaves in case of a flood whose probability exceeds the probability calculation.
The case study refers to Mileanca water storage lake, Botosani county. It was constructed in 1970 and served as water supply for irrigation of a surface of 100 hectares. The water storage dam is an earthen dam. In this paper we study the performance of the facility from the point of view of flood wave attenuation in the water storage lake and the performance of the dam in case of a flood that could lead to overtopping.

Keywords: dam, lake, attenuation, overtopping