Influence of soil characteristics on working dynamics mining tral authority

Abstract

The safest way to clear mines and barriers, in terms of saving human life and health, is to clear them at the site. Minesweepers are being used for this purpose, and in recent years they have gained extensive research, which is aimed at the use of large-scale explosion technology. Existing minesweepers in the Armed Forces of Ukraine, as a rule, are old-fashioned, and have certain shortcomings that affect the efficiency of their direct use. These include, first of all, insufficient survivability and different efficiency of their use during demining of minefields with different types of soils: from sandy, loamy and gravel. The range of physical and mechanical properties of the latter is very wide, and therefore - for the operation of an explosive device (mine) requires different amounts of action on the soil surface. The modernized mine trawl neutralizing device in the form of a system of U-shaped rockers with disks at the end is proposed in the work. They, acting directly on the mine, or through a small layer of soil, cause it to explode, provided that the force on the latter is not less than the minimum value required for its disposal. The advantage of this type of mine trawl is that even if one of the working disks fails during the explosion, it is structurally relatively easy to replace it with another. The magnitude of the deepening of the neutralizing disks into the soil (at a constant weight of the mounted part of the trawl), as well as their dynamic action through the soil on the mine depends on the physical and mechanical properties of the soil. Therefore, for the case of, for example, clay or sandy soils during the movement of the trawl, it will be sufficient for the operation of the explosive device, at the same time for the coating of gravel - insufficient. In addition, the amount of deepening of the working disks in the soil depends on its humidity.
 The study of the influence of the main physical and mechanical characteristics of soils on the dynamics of the modernized mine trawl neutralizing device during movement along the minefield (before and after the mine explosion) is the subject of research, hence their relevance.