有砟轨道轨道刚度与道床刚度实验研究

Research on rigidity of track and ballast bed of ballasted track

目前传统的道床刚度测量方法较为繁琐,而轨道刚度测量相对简单。对此,文中进行了对轨道刚度以及道床刚度的现场试验,对轨道刚度与道床刚度之间的关系进行研究,研究过程得到了轨道压力和位移线性拟合后所得表达式与轨道刚度的关系,以及轨道刚度与道床刚度的定量实测关系,因此证明了道床的刚度可以通过间接测量轨道刚度来进行反推得之,从而一定程度上提高了道床刚度的测量效率,对有砟轨道的建设以及维护具有一定的实际意义。

At present,the traditional measurement method of track bed stiffness is rather cumbersome,while the measurement of track stiffness is relatively simple.Therefore,in this paper,the field test of track stiffness and ballast stiffness is carried out,and the relationship between track stiffness and ballast stiffness is studied,and the relationship between track stiffness and the expression obtained after linear fitting of track pressure and displacement,as well as the quantitative measured relationship between track stiffness and ballast stiffness are obtained.Therefore,it is proved that the stiffness of ballast stiffness can be inversely deduced by indirect measurement of track stiffness,thus improving the measurement efficiency of ballast stiffness to a certain extent,which has certain application significance for the construction and maintenance of ballasted track.