Abstract
The article discusses the issue of determining non-erosion velocities for cohesive saline soil at the bottom and slopes of canals. Based on the formulas of Ts.E. Mirtskhulava for the determination of non-eroding velocities of water flow in cohesive soils, equations for determining non-eroding velocities for cohesive saline soil are proposed. A brief technique for conducting laboratory experiments and modeling of saline soil is presented. Based on the obtained data of laboratory experiments, the dependences for determining the non-eroding velocities of the water flow in the channels of the cohesive saline soils are obtained.
Highlights
Irrigation and drainage construction and operation of canals and collectors in the arid zone of Uzbekistan requires a significant amount of research on the deformation of erodible saline soils. Cohesive soils in their thickness contain inclusions of organic-mineral compounds and readily soluble salts
Soil colloids absorb part of the saline solution, part fills the micropores of microaggregates, and the rest of the dissolved salt is removed from the soil by a water flow
The methodology for preparing cohesive saline soil and conducting experimental studies is described in detail [3]
Summary
Irrigation and drainage construction and operation of canals and collectors in the arid zone of Uzbekistan requires a significant amount of research on the deformation of erodible saline soils. Cohesive soils in their thickness contain inclusions of organic-mineral compounds and readily soluble salts. These inclusions cement the rock in dry form and weaken it when it is moistened, causing swelling, soaking, and diffusion leaching of the soil [1,2,3,4,5,6,7,8,9,10], [17]. The resistance of soils to erosion decreases
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