The paper presents the results of theoretical, laboratory, and scientific field studies for the purpose of efficient flood protection of the Georgian Military Road. The erosion coefficients of mountain slopes of erosion and debris flow active right tributaries of Tetri Aragvi River catchment have been calculated taking into account the degree of soil and ground surface damage and the class of erosion, as well as the values of turbulent debris flow peak discharge have been determined taking into account the corresponding provision coefficient. In order to control debris flows in the Mleta River valley, the right tributary of the Tetri Aragvi River, a design of an innovative flood control structure has been presented, with its novelty priority certified by the patent certificate of Georgia No. P20207068B. After determination of the main hydrological and hydraulic parameters of the Mleta River valley and hydraulic laboratory large-scale modeling of the flood control dam, a scientific methodology was developed, according to which the structure was designed in the Mleta River channel. From August to November of 2022, the structure was constructed in the bed of the Mleta River valley, and from April to May of 2023, and also during September–October 2024, powerful debris flow occurred in the bed of the Mleta River gorge, which actively affected the debris flow regulating elastic structure of the ski jump type with maximum dynamic flow parameters. Through field expeditionary studies, it was established that in the first case, the maximum weight of the stone carried by the debris flow was 1.190 t, in the second case — 0.976 t, and in the third case of the debris flow, the weight of the transported stone exceeded 1.580 t. Innovative design the structure effectively discharged its function by retaining the debris flow mass in the headrace of the bed of the Mleta River valley and protected the St. George Church dated by 1879 from destruction.

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Engineering Geology and Environment, Special issue: V Conference debris flow, pp. 1041–1049, https://doi.org/10.4408/IJEGE.2011- 03.B-113.
2. Bolashvili N., Tsereteli E., Qutsnashvili O., Gaprindashvili G., Kurtsikidze O., 2015. Climate as an integral synthesizer in
development-reactivation processes of landslide and diagnostic criterion of its evaluation. Engineering Geology for Society and
Territory, Proceedings of the XII International IAEG Congress, Vol. 2, Torino, Italy, 2014, pp. 1781–1787, https://doi.org/10.1007/978-3-319-09057-3_315.
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4. Gavardashvili G.V., 2022. Predicting erosive and debris flow processes and the innovative measures to control them. Cambridge
Scholars Publishing, Cambridge, UK.
5. Gavardashvili G., Kukhalashvili E., Kupreishvili Sh., Gavardashvili N., 2019. Elastic debris flow-regulating barrage. Georgian Patent
No. P20207068B.
6. Lin M.-L., Wang K.-L., Chen T.-C., Lin S.-C., 2011. The case study of debris flow hazard caused by typhoon Morakot in Taiwan,
2009. Italian Journal of Engineering Geology and Environment, Special issue: V Conference debris flow, pp. 695–703,
https://doi.org/10.4408/IJEGE.2011-03.B-076.
7. Natishvili O.G., Gavardashvili G.V., 2019. Calculation of impact action of a coherent debris flow current in the wave motion mode
on a transverse structure. Modern problems of water management, environmental protection, architecture and construction,
Proceedings of the 9th International scientific and technical Conference, Tbilisi, 2019, pp. 210–214.
8. Natural hazards in Georgia, 2011. URL: http://drm.cenn.org/paper_atlas/RA-part-3.pdf (accessed: 10 February 2024).
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Cooperation Center, Tbilisi.
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anthropogenic disasters in Georgia. Journals of Georgian Geophysical Society, Vol. 15, pp. 14–23.
12. Gavardashvili G., 2011. Measures for the safety of mountain landscapes during natural and tehnogenic disasters. Universal, Tbilisi. (in Georgian)
13. Natishvili O., Kruashvili I., Gavardashvili G., Inashvili I., 2016. Methodic recommendations to design anti-debris flow structures
(hydraulic calculations). Publishing house of the Georgian National Academy of Science, Tbilisi. (in Georgian)
14. Chernomorets S.S., 2005. Origination sites of debris flow disaster: before and after. Nauchnyy mir, Moscow. (in Russian)
15. Natishvili O.G., Gavardashvili G.V., 2015. Calculation of the movement characteristics of the head part of a cohesive debris flow.
In collection of scientific papers of the Tsotnыe Mirtskhulava Water Management Institute of the Georgian Technical University,
No. 70. Publishing house of the Tsotne Mirtskhulava Water Management Institute of the Georgian Technical University, Tbilisi,
pp. 138–143. (in Russian)
16. The official site of the Ecocenter for Environmental Protection, 2023. URL: https://eco1985.ge/pages/home (accessed: 20 February 2024).

GIVI V. GAVARDASHVILI
Georgian National Academy of Sciences; Tbilisi, Georgia; givi_gava@yahoo.com
Address: Bld. 52, Rustaveli Ave, 0108, Tbilisi, Georgia
Georgian Technical University; Tbilisi, Georgia
Address: Bld. 77, Merab Kostava St., 0160, Tbilisi, Georgia

В статье представлены результаты теоретических, лабораторных и полевых исследований, проводившихся с целью эффективной защиты Военно-Грузинской дороги от наводнений. Рассчитаны коэффициенты эрозии горных склонов долин правых притоков

р. Белая Арагви, активных с точки зрения проявления эрозии и селевых процессов, с учетом степени эрозионного воздействия и класса эрозии, а также определены значения пиковых расходов турбулентных селей с учетом соответствующего коэффициента обеспеченности. Для борьбы с селевыми потоками в ущелье р. Млетисхеви, правого притока р. Белая Арагви, представлен проект инновационного противоселевого сооружения, новизна которого подтвержден патентным свидетельством Грузии

№ P20207068B. После определения основных гидрологических и гидравлических параметров р. Млетисхеви и лабораторного гидравлического моделирования противоселевой дамбы была разработана методика, в соответствии с которой спроектировано сооружение в русле р. Млетисхеви. С августа по ноябрь 2022 г. сооружение было построено, а в течение апреля–мая 2023 г., а также сентября–октября 2024 г. по этой долине прошли мощные селевые потоки, которые активно воздействовали на селерегулирующее эластичное сооружение трамплинного типа с максимальными динамическими параметрами потока. По результатам проведенных полевых экспедиционных исследований установлено, что в первом случае максимальная масса обломка, перенесенного селевым потоком, составил 1,190 т, во втором — 0,976 т, а в третьем превысил 1,580 т. Инновационная конструкция эффективно выполнила свою функцию, задержав селевые массы в верховьях реки и защитив от разрушения Георгиевскую церковь 1879 г. постройки.

1. Armanini A., Larcher M, Odorizzi M., 2011. Dinamic impact of a debris flow front against a vertical wall. Italian Journal of
Engineering Geology and Environment, Special issue: V Conference debris flow, pp. 1041–1049, https://doi.org/10.4408/IJEGE.2011-03.B-113.
2. Bolashvili N., Tsereteli E., Qutsnashvili O., Gaprindashvili G., Kurtsikidze O., 2015. Climate as an integral synthesizer in
development-reactivation processes of landslide and diagnostic criterion of its evaluation. Engineering Geology for Society and
Territory, Proceedings of the XII International IAEG Congress, Vol. 2, Torino, Italy, 2014, pp. 1781–1787, https://doi.org/10.1007/978-3-319-09057-3_315.
3. Climate risk country profile: Georgia, 2021. URL: https://climateknowledgeportal.worldbank.org/sites/default/files/2021-06/15836-WB_Georgia%20Country%20Profile-WEB.pdf (дата обращения: 20.02.2024).
4. Gavardashvili G.V., 2022. Predicting erosive and debris flow processes and the innovative measures to control them. Cambridge
Scholars Publishing, Cambridge, UK.
5. Gavardashvili G., Kukhalashvili E., Kupreishvili Sh., Gavardashvili N., 2019. Elastic debris flow-regulating barrage. Georgian Patent
No. P20207068B.
6. Lin M.-L., Wang K.-L., Chen T.-C., Lin S.-C., 2011. The case study of debris flow hazard caused by typhoon Morakot in Taiwan,
2009. Italian Journal of Engineering Geology and Environment, Special issue: V Conference debris flow, pp. 695–703,
https://doi.org/10.4408/IJEGE.2011-03.B-076.
7. Natishvili O.G., Gavardashvili G.V., 2019. Calculation of impact action of a coherent debris flow current in the wave motion mode
on a transverse structure. Modern problems of water management, environmental protection, architecture and construction,
Proceedings of the 9th International scientific and technical Conference, Tbilisi, 2019, pp. 210–214.
8. Natural hazards in Georgia, 2011. URL: http://drm.cenn.org/paper_atlas/RA-part-3.pdf (дата обращения: 14.02.2024).
9. The Georgian road map on climate change adaptation, 2016. Color Ltd, Tbilisi.
10. The role of protected areas in regard to climate change, 2012. Scoping study, Georgia. Publishing house of the IUCN Caucasus
Cooperation Center, Tbilisi.
11. Tsereteli E., Gaprindashvili M., Gaprindashvili G., Chelidze T., Varazanashvili O., Tsereteli N., 2012. Problems of natural and
anthropogenic disasters in Georgia. Journals of Georgian Geophysical Society, Vol. 15, pp. 14–23.
12. Gavardashvili G., 2011. Measures for the safety of mountain landscapes during natural and tehnogenic disasters. Universal, Tbilisi. (in Georgian)
13. Natishvili O., Kruashvili I., Gavardashvili G., Inashvili I., 2016. Methodic recommendations to design anti-debris flow structures
(hydraulic calculations). Publishing house of the Georgian National Academy of Science, Tbilisi. (in Georgian)
14. Черноморец С.С., 2005. Селевые очаги до и после катастроф. Научный мир, Москва.
15. Натишвили О.Г., Гавардашвили Г.В., 2015. Расчет характеристик движения головной части связного селевого потока.
Сборник научных трудов Института водного хозяйства им. Ц. Мирцхулава Грузинского технического университета, № 70,
с. 138–143.
16. The official site of the Ecocenter for Environmental Protection, 2023. URL: https://eco1985.ge/pages/home (дата обращения:
20.02.2024).

ГАВАРДАШВИЛИ Г.В.
Национальная академия наук Грузии, Тбилиси, Грузия, givi_gava@yahoo.com
Адрес: пр-кт Руставели, д. 52, г. Тбилиси, 0108, Грузия
Грузинский технический университет, г. Тбилиси, Грузия
Адрес: ул. Мераба Костава, д. 77, г. Тбилиси, 0175, Грузия