FORECASTING THE FLOODING PROCESSES OF URBAN AREAS BY METHODS OF MATHEMATICAL MODELING BY THE EXAMPLE OF PAVLODAR (KAZAKHSTAN)
Sotnikov E.V. Miroshnichenko O.L. Trushel L.Y. Gabdulina S.I. Murtazin Y.Zh.
2023National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2023#2023Issue 4208 - 224 pp.
At present in urban areas the anthropogenic factors impact on groundwater prevails over natural ones. Relevance of the research is determined by the need to make justified management decisions on the drainage of urban areas flooded as a result of industrial and civil construction. The use of mathematical modeling methods allows to simulate changes in hydrogeological conditions during the operation of different variants of drainage systems and choose the optimal drainage scheme. Purpose of the work is to evaluate the efficiency of the designed drainage system with the use of numerical modeling methods to predict flooding process of Pavlodar territory caused by the transformation of the relief as a result of construction and water leaks from the water supply and sewerage. Studies include the development of geoinformation and hydrodynamic models of hydrogeological conditions and solving problems of changes forecasting in groundwater levels as a result of the operation of various drainage systems. Based on the results of the work the determining role of technogenic factors (water leakage from utilities, construction of a dam leading to the CHP, etc.) in groundwater level increase has been confirmed. Four scenarios of the drainage network operation are reproduced, involving various combinations of horizontal drains and drainage wells, the possibility of drainage water into the waste discharge into mined-out open pit. The optimal scheme of water reduction is determined, which consists in the joint use of horizontal drains and existing drainage wells. The performed studies have shown the expediency of using hydrogeological numerical modelling methods in solving problems of evaluating the effectiveness of the designed drainage systems in urban areas.
flooding , geoinformation systems , groundwater , numerical modelling
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Ahmedsafin Institute of Hydrogeology and Environmental Geoscience, Satbayev University, Almaty, Kazakhstan
SRK Consulting Kazakhstan, Almaty, Kazakhstan
Ahmedsafin Institute of Hydrogeology and Environmental Geoscience
SRK Consulting Kazakhstan
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