Mine surveillance measurements during the building of NOP II shaft

摘要

The Velenje Coal Mine is building a new shaft NOP II for the udtransportation of coal from the mine. The entrance of the shaft, udwhich is determined on the surface, and the bottom of the udshaft, which is expected in the point determined at the bottom udof the shaft, must be within the same vertical and horizontal udcoordinate system. The starting points for the measurements udare the points determined on the surface, which are stable udor have a determined direction and velocity. The transfer of udthe coordinate system from the surface into the shaft can be udcarried out with the measurements using various methods. udThe results of the measurements and the calculations are the udcoordinate points in the shaft that are in the same coordinate udsystem as those on the surface. They are very suitable for the uddetermination of the designed NOP II shaft. At the beginning udof this task, we planned to determine the coordinates of the udstarting points with a maximum precision. Based on the udresults of an analysis, we can conclude that we performed udeach phase of the work very well and achieved the tasks set.