Treatment of the Modern Management Mechanism of the Debris Flow Processes Expected in the Mletiskhevi

Authors: G. Chakhaia, S. Gogilava, L. Tsulukidze, Z. Laoshvili, I. Khubulava, S. Bosikashvili, T. Gugushvili

Abstract:

The work reviewed and evaluated various genesis debris flow phenomena recently formatted in the Mletiskhevi, accordingly it revealed necessity of treatment modern debris flow against measures. Based on this, it is proposed the debris flow against truncated semi cone shape construction, which elements are contained in the car’s secondary tires. its constituent elements (sections), due to the possibilities of amortization and geometric shapes is effective and sustainable towards debris flow hitting force. The construction is economical, because after crossing the debris flows in the river bed, the riverbed is not cleanable, also the elements of the building are resource saving. For assessment of influence of cohesive debris flow at the construction and evaluation of the construction effectiveness have been implemented calculation in the specific assumptions with approved methodology. According to the calculation, it was established that after passing debris flow in the debris flow construction (in 3 row case) its hitting force reduces 3 times, that causes reduce of debris flow speed and kinetic energy, as well as sedimentation on a certain section of water drain in the lower part of the construction. Based on the analysis and report on the debris flow against construction, it can be said that construction is effective, inexpensive, technically relatively easy-to-reach measure, that’s why its implementation is prospective.

Keywords: Construction, debris flow, sections, theoretical calculation.

References:

[1] Chakhaia G., Kukhalashvili E., Diakonidze R., Kvashilava N., Tsulukidze L., Kupreishvili Sh., Supatashvili T., Khubulava I. - The Evaluation of Debris Flows Influence on the Pass-through Type Debris Flow against Construction. American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS) ISSN (Print) 2313-4410, ISSN (Online) 2313-4402 © Global Society of Scientific Research and Researchers. Vol. 20, #1, 2016, pp. 224-234. Impact Factor 0,296, USA.
[2] Chakhaia G., Kvashilava N., Diakonidze R., Tsulukidze L., Lobzhanidze Z., Kupreishvili Sh., Supatashvili T., Khubulava I. - Assessement of Debris Flow Influence on the Lattice Type Debris Flow against Construction. International Journal of Sciences: Basic and Applied Research (IJSBAR). ISSN 2307-4531 (Print & Online), Volume 29, No 2, pp.23-44 http://gssrr.org/index.php?journal= Journal of Basic and Applied. Impact Factor 0,415. USA.
[3] Daido A. On the occurrence of mud-debris flow. Bull. Dis. Res. Inst. Kyoto Univ. 1971. Vol. 21. part. 2. #187, November, pp.103.
[4] Diakonidze R. - Empirical dependences for calculation of the maximum discharges of water. International Symposium on Floods and Modern Methods of Control Measures. Dedicated to the 80th anniversary of the GWMI. Tbilsi, 2009, pp.99-105.
[5] Diakonidze R. - Debris flows and protection of quality of water resources (case study of Georgia). Debris flows: Disasters, Risk, Forecast, Protection. Pyatigorsk, Rassia, 2008, pp. 343-346.
[6] Diakonidze R. - The Protection of Settlements from the Floods and Debris Flow (On the example of tragedy in Tbilisi on 13-14 June of 2015). Meteorology Hydrology and Water Manegment. Warszawa, Poland; 2017.
[7] Gagoshidze M.S. – Debris-flow Processes and Measures for combating them. Tbilisi, 1970, 380 p.
[8] Gavardashvili G.V. – Termination of Stability for the Springboard Type Trapezoidal Dam Against Debris Flow Taking Into Account Static and Dynamic Loads of Debris Flow. The IV International conference on The Modern Problems of Environmental Engineering. 22-24 June, 2010 Wroclaw –Karpacz, Poland. pp. 17.
[9] Gavardashvili G.V. – Hydraulic Calculation of a New SpringBoard Type Trapezoidal Structure Against Debris Flow. 2-nd International Scientific and Technical Conference, Architecture and Construction – Contemporary Problems”. 30- September-3 October, 2010, Yerevan - Jermuk, Conference roceedings. Vol. 2, pp. 256-262.
[10] Gavardashvili G.V. – New designs of spring-board type drifttrapper and the methodology for their calculation. Material of an 14th International Conference on Transport and Sedimentation. June 23-27. Saint Petersburg, Russia, 2008, pp. 128-136.
[11] Gavardashvili G.V. – The New Mud-Protective Structures and Their Calculation Methodology. Tbilisi, Republic of Georgia, 1995, 58 p.
[12] Gavardashvili G.V. – Ecological equilibrium of the mudflow water courses along the Georgian Military Road (methods of reliability and risk). //Engineering Ecology, №2, Moscow, 2002, pp. 11-17.
[13] Gavardashvili G.V. – Assessment of the ecological reliability of rivers of mudflow character of Georgia, Material of 13th International Conference on Transport and Sedimentation. September 18-20. Tbilisi, 2006, pp. 86-96.
[14] Gavardashvili N., Gavardashvili A. Integrated Granulometry Curves for debris flow Solid Extraction in the River Mletiskhevi. 3rd International Scientific-Technical Conference on Environment, Architecture and Construction Modern problems. Tbilisi-Borjomi, 2013, 27-36.
[15] Gavardashvili G.V., King L., Schaifer M. – Debris Flows at the river Mletis-khevi (Greater Caucasus Mountains, Georgia) and it's Assessment. Methods. Justus Liebig University Giessen, Center for international Development and Environmental Research (ZEU), Germany. №32, 2007, 15.
[16] Iano K., Daido A. Fundamental study of mudflow. Bull. Dis. Prev. Res. Inst. Kyoto University. 1985. Vol. 14; part. 2. pp. 69-83.
[17] Kupravishvili M. - Character of distribution of the proluvion in the water-channel of guly Mleta (field experiment) Minister of Education and Science of Georgia Ts. Mirtskhulava Water Management Institute of Georgian Technical University. Collected papers №73 Tbilisi 2018. p. 59.
[18] Kupravishvili M. The distribution of channel formations (proluvium) along the watercourse. Earch and Planetary Sciences. Works of GTU. №4 (514), 2019, 66-74.
[19] Kukhalashvili E., Omsarashvili G., - The calculation of attacking forcé action on the linckage debris flow transverse construction. Georgian state agrarian university. Vol .3, # 2 (51). Tbilisi, 2010, pp.70-73.
[20] Kukhalashvili E.G., Gavardashvili G.V., Mamasakhlisi Zh.G., Undilashvili N. – The theoretical Model of Mudflow in Erosional River Gullies at High Water. International Symposium (with the support of UNESCO) on, Floods and Modern Methods of Control Measures. 23-28 September 2009, Tbilisi, Georgia, pp. 285-291.