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弦线矢距法整正曲线弦线矢距法适用于整正道岔后附带曲线和小曲线。此法计算简单,操作方便,曲线经整正后能够达到要求的精度。一、弦线各点矢距计算法 1. 曲线半径的确定: 用20m绳量取现場正矢时,R≈50000/平均正矢用10m绳量取现場正矢时,R≈12500/平均正矢用拉绳法找曲线交点:用4根铁飦定出①②,④⑤点,找交点。具体作法如下:在③点处,目视前方直线方向,定出①②两点;同
Chord line pitch method Rectification curve Chord line pitch method applies to the correction of the turnout with additional curves and small curves. This method is simple, easy to operate, the curve can be adjusted to meet the required accuracy. First, the pitch point of the string calculation method 1. Determination of the radius of the curve: Take 20m rope when the amount of positive on-site, R ≈ 50000 / average positive vector with 10m rope when the amount of field positive vector, R ≈ 12,500 / average Vector arrow law to find the curve intersection: with 4 iron 飦 set ① ②, ④ ⑤ point, find the intersection. Specific practices are as follows: ③ point, the visual direction of the front straight line, set ① ② two; the same