Schemes for opening new horizons and forming steeply inclined ramps when using crawler dump trucks
DOI:
https://doi.org/10.33271/crpnmu/80.028Keywords:
crawler dump trucks, non-metallic quarry, horizon opening, trench parameters, access road, geographic information technologiesAbstract
Purpose. Research of schemes for opening new horizons of non-metallic quarries by steeply inclined trenches using crawler dump trucks and setting their parameters with using modern GIS software Micromine. The methods. Analysis of opening schemes, graphical construction of steeply inclined trenches. Application of spatial modelling of workings and research using Micromine software. Findings. The analysis of the formation of schemes for opening new horizons was carried out, which made it possible to determine the relevance of the problem of forming steeply inclined ramps when using tracked dump trucks. Graphical dependencies of the actual length of the trench route on the height of the ledge and the angle of the route were established. Using the Micromine software, models of steeply sloped trenches were created and the scope of work was determined for various parameters. The construction of steeply inclined trenches and the use of tracked machines allows us to change the configuration of the open pit space, extract additional minerals, reduce the loss of minerals in the sides of the pit, and reduce the parameters of the overburden workings compared to the use of road transport. The schemes for opening new horizons and forming steeply inclined ramps can be used in the development of non-metallic mineral deposits, as well as in the refinement of existing deep pits in the bottom part where there are spatial restrictions. The originality. Using Micromine software, the company justified the change in the volume of overburden when using crawler dump trucks, which allowed to obtain graphical dependencies and determine the indicators that affect the operation of the main equipment. Practical implementation. Determination of the scope of work when opening new horizons in non-metallic quarries using tracked dump trucks, taking into account the height of the ledge (trench depth), laying the exit, the angles of the sides of the trenches, and creating a one- and two-lane road. Limitations on the use of wheeled dump trucks with different wheel formulas and a possible transition to tracked vehicles with an increase in the slope of the exit route are established.References
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