Environment, Vol. 1, Issue 1, Dec  2017, Pages 13-24; DOI: 10.31058/j.envi.2017.11002 10.31058/j.envi.2017.11002

Forecasting the Security of the Local People in Village Nakra of Mestia Region (Georgia) Against Floods and Mudflows

, Vol. 1, Issue 1, Dec  2017, Pages 13-24.

DOI: 10.31058/j.envi.2017.11002

G. Gavardashvili 1* , G. Gavardashvili 2

1 Ts. Mirtskhulava Water Management Institute of Georgian Technical University, Tbilisi, Georgia

2 Ecocenter for Environmental Protection, Tbilisi, Georgia

Received: 21 December 2017; Accepted: 4 January 2018; Published: 18 January 2018

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Abstract

Aiming at securing the local people of village Nakra in Mestia region (Georgia) against floods and mudflows, the work considers the results of the field and theoretical studies carried out in the water catch basin of Laknashera River, the right tributary of Nakra River. The principal geological, hydrological and hydraulic characteristics of Laknashera River catch basin, as well as GIS and GPS technologies, were used to identify the sensitive sites of the river where landslide processes of various intensities are expected to originate. Mathematical modeling and software Volna-4 were used to identify the relation between the principal hydraulic and hydrological properties of the flood and mudflow wave formed in case a 20-meter-high natural coffer soli-stone barrier in the riverbed is disrupted and the time and geometry of the flooded area on the example of Laknashera River. At the following stage, the obtained data can be used to realize preventive and complex engineering environmental measures to ensure the safety of the population of village Nakra against natural calamities. Such measures, together with other environmental protection measures, shall describe the regulation of the transit portion of both, the talus train and bed of Laknashera River by constructing the cascades of reliable springboard-type structures.

Keywords

Population, River, Natural Disaster, Safety

Copyright

© 2017 by the authors. Licensee International Technology and Science Press Limited. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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