Kyrykovych V. Еfficiency improving the of the milling working body for the soil development in the aquatic medium

The object of research - a process of the soil destruction by the vertical cylinder cutters in the aquatic environment. The purpose of the thesis: improving the efficiency of the soil development processes in the aquatic environment through the establishment of rational parameters of the milling working body. Methods: theoretical studies were performed using known provisions of soil mechanics, morphological and mathematical analysis, experimental - through visualization using tenzometric measurements and statistical methods of the processing the results. Theoretical and practical results: technical and technological solutions, which use can significantly improve the development of soil II-III category in the aquatic environment, research and analytical set reasonable parameters mills, developed and implemented in practice milling operating authority for the development of the soil aquatic environment. Scientific novelty: for the first time theoretically and experimentally confirmed the rational design of milling working body for the soil development in the water; established patterns of development and liquefaction of soil, namely, the influence of hydrostatic pressure between 0 do1, 5 MPa, differential width blade and passing soil destroyed items for the ground process split to a critical depth, developed mathematical model of the milling working body of a soil in the water; reasonably rational parameters of milling working body for the development of a soil in the water and set rational limits of the medium density 1.45 ... 1.5 g/cm3 ascent of the amber, the influence of the modes to the design parameters of milling working body for the development of a soil in the aqueous environment on the basis of theoretical and experimental studies, mathematical models defining effort, points and power indicators milling business of development of soil in water. Degree of implementation: the OAS "Lubomirski calc-silicate factory" held separation of sand stone and root inclusion, through the development of a soil in the water. Cost-effectiveness of implementation research in volume 1000 m3 was 8270 UAH. Implementation in production mills, compared with a set of equipment for the extraction of amber in the field Klesiv provide lower power consumption by 95%, material consumption by 98%. This annual economic effect will be 20617000 UAH. Scope: excavation works in the aquatic environment.