在运营铁路线上,曲线的日常养护,一般都采用修正正矢的方法校正曲线线形。修正正矢的方法有多种,其中以试算修正法和修正半拨量法为多见。然而,这些计算方法都避免不了繁锁的计算过程。用二次修正曲线正矢法,就能减少正矢的试算过程从而满足《工务规则》规定的曲线养护标准。 In the operation of the railway line, the routine maintenance of the curve, the method of correcting the positive vector is generally used to correct the curved line. There are many ways to correct positive vectors, of which trial-and-correction method and modified semi-dialing method are more common. However, these calculations can not avoid the complicated calculation process. By using the quadratic correction curve normal vector method, the trial calculation of positive vectors can be reduced to meet the curve maintenance standard stipulated in the “Code of Practice”.