1) Mainly develop the position selection of the vertical ore body direction of the roadway: delineate the final mining rock belt moving belt, and initially determine the allowable position of the main development roadway outside the surface rock moving belt.
2) Mainly develop the choice of the direction of the roadway along the ore body: According to the principle that the sum of the ground transportation cost and the underground transportation cost is the smallest, the most favorable position of the main development roadway along the direction of the ore body is basically determined.
3) Combine the surface topography and the layout of industrial sites to determine the specific location of the main roadway.
4) Inspect the borehole to further identify the engineering geological conditions of the main roadway (mainly for the shaft).
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