圆形水工隧洞（管道）分岔口相贯线方程的计算与应用

The Calculation and Application of the Equation of Intersection Line for Circular Hydraulic Tunnel Intersection

提出了圆形主洞（管）收缩式洞段与圆形支洞斜交相贯线投影曲线的理论方法方程及分岔段的展开计算方法，并以计算实例说明的应用 。

The theoretical equation and numerical calculation of the spreading of the intersecting line between the converging transition of main circular tunnel (pipe) and the inclined circular branch tunnel are given in this paper. Application of the method is illustrated by an example.