Wave destruction of closed soils

Abstract

With a blocked cutting of closed soil on the vibrating cutting edge of the bit, a deformation cone is formed due to cyclic and transient compression of the gas phase, which becomes a carrier of the kinetic energy transformed in the form of high-frequency supersonic shock waves. The angles of inclination of the cone-forming deformations coincide with the angles of repose of the soil and are equal to approximately 45°, as a result of which the shock waves propagate in the least energy-consuming way. The high-frequency nature of the shock waves leads to the fact that at frequencies of τ < 0.0037 s, the adhesion between solid inclusions is interrupted in the deformation zone, and the internal friction of the soil is essentially leveled out. This process is carried out through chisel-type tillage implements of the original structures considered in the present work.

Research of the borehole moisture capacity of deeply loosened soils in the south of the Rostov region

“…Многими исследователями установлено, что значение скважности пахотного слоя почвы составляет 45-55 %. Ниже пахотного слоя плотность почвенных горизонтов резко возрастает, при этом скважность почвы снижается до 10 % [3,[8][9][10][11]13]. При глубоком рыхлении (до 0,6 м) увеличивается объем почвы и резко повышается скважность, следовательно, и влагоемкость почвы.…”