Economic Efficiency of Debris-flow Control

  • Vartanov M. Tsotne Mirtskhulava Water Management Institute of the Georgian Technical University Chavchavadze Ave. 60b, 0179, Tbilisi, Georgia
  • Kukhalashvili E. Tsotne Mirtskhulava Water Management Institute of the Georgian Technical University Chavchavadze Ave. 60b, 0179, Tbilisi, Georgia
  • Beraia N. Tsotne Mirtskhulava Water Management Institute of the Georgian Technical University Chavchavadze Ave. 60b, 0179, Tbilisi, Georgia
  • Maisaia L.
Keywords: Debris-flow, Engineering Protection, Prevented Damage, Economic Efficiency, Net Present Value.

Abstract

Debris-flow is one of the most formidable manifestations of nature. A debris-flow moving along the bed of the debris-flow-carrying river on its way destroys bridges, roadways, roads, hydro-technical and other facilities, causes significant damage to agricultural land, residential buildings, social infrastructure, poses a serious danger to the life and health of the population. A possible way to solve this problem is the construction of engineering structures that ensure the protection of the population living in the area at risk of debris-flow passing, the preservation of both natural and man-made material assets. It is determined that the dependence of the Net Present Value (NPV) on the frequency of the debris-flow passage has a hyperbolic character. The value of NPV reaches its maximum with the annual passage of the debris-flow. With a decrease in the frequency of debris-flow passing, the efficiency of capital investments in a protective structure decreases sharply.

References

Vartanov M.V., Economic efficiency of engineering protection of economic objects on the rivers of Western Georgia from floods. Russian Academy of Sciences, All-Russian Research Institute of Agricultural Use of Reclaimed Lands. Tver-Ryazan, 2014

Gagoshidze M.S., Debris-flow phenomena and their control. Tbilisi, Sabchota Sakartvelo, 1970

Kovalev V.V., Methods for evaluating investment projects, M., Finance statistics, 1998

The most destructive debris-flow in the world in 2010-2017, htths://ria/ru/20.170402/1491291597.html s Copyright certificate № 1101499

Published
2019-07-07
Section
Articles