前言目前,我国许多露天矿山测量人员都较普遍地采用后方交会法(以下简称“后交点法”)布设采场测量工作控制点。但现今的一些测量书刊中,对后交点的点位中误差计算公式少见推导,对图形强度罕见讨论,尤其在一些测量规程中,对要不要选测检核方向, Preface At present, many open-air mine surveyors in China are more commonly using the rear intersection method (hereinafter referred to as the “back intersection method”) to deploy stope measurement control points. However, in some surveying books and periodicals nowadays, the calculation formula of error in the point of post-intersection point is rarely deduced and rare discussion of the intensity of the graph, especially in some measurement procedures,