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STUDYING THE INFLUENCE OF WINDWAY AIR FLOW ON EROSION OF FIXED SOILS AND SANDS OF THE ARAL

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Background. At present, a great deal of attention has been paid to the study of the processes of removal and migration of salts by various natural factors (surface and groundwater, air flows). Protecting sand from wind erosion using water-soluble polymers, as well as mixtures with industrial non-toxic waste, is a solution to an important environmental problem. It should be taken into account that the Aral Sea and the dried bottom of the Aral Sea are highly saline. Purpose. The aim of the work is to comprehensively substantiate the role of the studied surfactants on the effectiveness of chemical fixing the surface of the solid particles of the mobile sands of the Aral Sea with additives-fixers for obtaining the mechanical and water-resistant structure of the sandy dispersion. Methodology. Wind erosion of the fixed sands of the Aral Sea was determined in the laboratory, on a model aerodynamic installation. Originality. It is established that the soil and sands of the Aral Sea are polymineral and salt containing, depending on the climatic conditions. Accounting for these features when they are fixed is necessary because they determine the duration of the forming crusts. An experimental study of the effect of wind air flow on the mechanical strength of fixed soil and sands of the Aral has been established. Findings. The strength of the surface crust in the process of fixing the sands increases to 2.80-3.19 MPa, against 0.56-0.59 MPa in the original. The studied complex additives reduce wind erosion of sand. Highlights: * easily accessible water-soluble waste; * water soluble local waste; * important indicators of sand fixing: mechanical strength, water resistance, wind resistance

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# stability# устойчивость# soil# эрозия# sand# erosion# fixing# aerodynamic installation# fixer# water resistance# deflation# закрепление# аэродинамическая установка# песок# почвогрунт# закрепитель# водостойкость# дефляция

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https://eroi.uz/11.0030/A1219-0008

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