1Professor, Institute of Geology and Exploration of Oil and Gaz Fields, Tashkent, Uzbekistan
2Senior Lecturer, Almalyk Branch of Tashkent State Technical University, Uzbekistan
3Senior Teacher, Almalyk Branch of Tashkent State Technical University, Uzbekistan
Online published on 1 December, 2020.
The article deals with the main problems of changes in the hydrogeological and engineering-geological conditions of irrigated areas during reclamation development.On the irrigated lands of the region, two main engineering and geological regions are distinguished. The first area - proluvial middle-, upper-quaternary and alluvial modern terraces. The terraces of this area are formed from the surface by loess-like loams and sandy loams (3-5 m to 20-35 m thick), the second area from the surface by loams and sandy loams (3-5 m thick), underlying gravel-pebble deposits with a thickness of 20-30 m and more .Engineering-geological assessment of the territory of irrigation and drainage construction is given on the basis of hydrogeological conditions transformed during irrigation. The issues of soil moistening, flooding of territories during irrigation, changes in the composition and properties of soils, subsidence of loess soils, etc. are considered. The assessment of the reliability of forecasts and recommendations for their implementation is given.
Depressions, Loess Rocks, Irrigated Lands, Groundwater Levels, Drainage, Canal, Subsidence, Water Distribution Devices, Engineering And Geological Conditions, Subsidence Of Soils, Filtration Properties Of Soils
