高速铁路在曲线段一般采用大半径长缓和曲线进行线路布置,并且缓和曲线之线型用一波型或半波型正弦曲线,这就不同于以往缓和曲线之三次抛物线型。三次抛物线型可以用偏角法或支距法布置墩位,而正弦曲线型就不能用上述办法,我们是采用座标法,就是拟定缓和曲线范围内各墩位之间曲线长,根据缓和曲线表达式计算各墩位座标,通过座标求出桥墩中心点位置。 High-speed railway in the curve segment is generally large-radius long ease the curve of the line layout, and ease the curve of linear or half-wave sinusoidal, which is different from the previous curve of the third parabolic type. Three times the parabola can be offset method or offset method to set the pier, and the sinusoidal type can not use the above method, we are using the coordinate method, is to draw the curves between the pier curve length, according to the easing curve Expressions Calculate the coordinates of each pier, through the coordinates to find the location of the pier center.