矿区公路平面坐标计算方法

Mine Area Road Horizontal Coordinate Computation Method

根据公路测量中几种基本的平面线型——直线、园曲线、缓和曲线和卵型曲线的特点,直接给出各线型的中桩坐标和切线方位角的计算公式,根据中桩坐标的计算结果及边线桩至道路中线的水平距离,计算边线桩的坐标。这4种线型的计算公式非常适宜于极坐标法放样矿区公路的中桩和边桩计算。对于较长矿区公路的测量,可以把它分解成多个直线、园曲线和缓和曲线等图元对象,再运用其相应公式进行计算。

According to characteristics of some basic horizontal alignments-straight line, circular curve, transition curve and oval curve, directly giving rise to centerline stake coordinates and tangent bearing computational formulae, based on centerline stake computed results and horizontal distance between sideline stakes and centerline of road to compute sideline stake coordinates. Computational formulae of these four alignments are quite adapted for polar coordinate method setting out mine area road computation of centerline and sideline stakes. To surveying of rather long mine area roads, can disassemble them into multiple primitive elements of straight lines, circular and transition curves, then computing with corresponding formula.