Optimal graphic analysis of connecting quadrilateral method for vertical shaft orientation in underground engineering
In order to improve the accuracy of underground engineering vertical shaft orientation,the connecting quadrilateral method vertical shaft orientation method was explained.A symmetric quadrilateral was determined using one angle and one edge as parameters,and a rigorous adjustment model for connecting quadrilaterals was constructed.Indirect adjustment was used to evaluate the accuracy of the mesh.A program was developed to calculate the accuracy of directional edges for different conditional angles and edges,draw contour lines,and quantitatively analyze the optimal shape of quadrilateral connections.This study has practical application significance for the orientation of underground engineering shafts.
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