无缝线路原始弯曲的极值概率分析

The Probability Analysis of the Extreme Values of Initial Inflections in CWR

文中阐明了无缝线路原始弯曲的极值概率模型及其统计分析方法，并基于大量的现场调查数据，确定了原始弯曲设计参数的取值。通过建立无缝线路稳定性平衡路径不可逆性的概念，分析了原始弯曲形成过程及其对无缝线路稳定性的影响，从而说明了确定无缝线路稳定性计算公式中原始弯曲参数的重要性。

This paper describes the probability model of the extreme values of CWR initial inflections and also the related method of statistical analysis.On the basis of abundant data obtained from on the spot investigations,the values of design parameters for initial inflection are determined.Through the establishment of the notion of inconversibility,of CWR stability balance path,the process of formation of initial inflections and their influence on CWR stability are analyzed.Thus the importance of determining the initial inflections parameters in the calculation formula for CWR stability is elucidated.