Abstract
The questions of processing technology of dam channels using appropriate mechanisms are presented taking into account the requirements of modern engineering hydrology. Channel profiling with the best quality and performance can be carried out by means of mechanization at the expense of working tools, able to process not only longitudinal but also cross-sections of channels. According to calculations, there was established, that the best condition for moving soil on the channel slope in front of the passive knife, is an equable distribution along the slope. It was marked, that the strength of the soil pressure is most affected by the installation value of the trowel knife and the thickness of the loosened soil layer to be compacted. Recommendations on increasing the active working body stability of the dam profiler are given.
Highlights
Reclaimed lands are the main link in the agricultural production stabilization
With the steady process of profiling, the combined working tool passive knife of profiler moves a certain mass of soil Gh, necessary for swamping on dam troughs treated surface
The force, required to determine the resistance forces to the movement of the passive knife will be spent on moving the loosened soil (Figure 1)
Summary
Worldwide irrigated land area is about 270 million hectares, of which in India – 21%; in China – 17.7%; in the USA – 9.3%, and Russia accounts for 1.6%. The area of drained lands is – 200 million hectares, of which the United States owns a share of such territories 30%; China – 3.4%; India – 31%; Russia – 2.4%. We can take a machine with an optimal working width, equal to the dam cross section perimeter, since the most promising is the use of machines for profiling by increasing the working tool width. The main requirement for the newly created reclamation machines for the care of irrigation canals should be ensuring high productivity when processing canals’ dams using various working tools, capable of processing longitudinal and cross-sections of channels
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