摘要
Abstract
According to the structural characteristics of ladder-shaped sleeper and geological conditions of Dali-Ruili Railway line for "three high and four active" (referring to high earthquake intensity, high ground stress and high terrestrial heat; active new structural movement, active external dynamic conditions, active natural water environment and active shallow slope transformation), the structural form of L-shaped concrete supporting ballastless track in Gaoli Gongshan Tunnel is preliminarily determined. The finite element model of vertical stress of ladder sleeper is established using finite element method. Through analyzing bending moment of damping material to ladder sleeper and L-shaped support under different supporting spaces and vertical 。, displacement of ladder sleeper and steel rail in various conditions, the reasonable supporting space for damping material of ladder sleeper is determined 1.25m.关键词
梯形轨枕/减振材料/支撑间距Key words
ladder-shaped sleeper/ damping material/ supporting space分类
交通工程
