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介绍了采用三弯矩样条插值来构造曲线型超高顺坡缓和曲线的方法,并结合实例对构造的具体步骤和有关公式加以说明。此法可结合提速改建或新建高速铁路的实际情况,先设定有关参数,再逆向计算求得缓和曲线方程,改变了以往先设定缓和曲线方程式的传统方法。由于三弯矩样条插值法具有不等距划分也可以使用的特点,所以采用该方法构造非中心对称缓和曲线尤显灵活、简便和实用
The method of constructing curve super high slope smoothing curve by three - moment spline interpolation is introduced, and the specific steps and the related formulas of the structure are illustrated with examples. This method can be combined with the actual conditions of speeding up or building a new high-speed railway, setting the relevant parameters first, then calculating the easing curve equation by reverse calculation, and changing the traditional method of setting the easing curve equation in the past. Because the three-moment spline interpolation method has the characteristics of being equally spaced, it is more flexible, simple and practical to construct the non-centrosymmetric easement curve by using this method