Dynamic Settlement Test and Ballast Pressure Analysis on Ballasted Ladder Track
Michiaki OYADO, Hiromi INOUE, Masamichi SOGABE, Nobuyuki MATSUMOTO, Hiroo KOYAMA, Kotofusa TAKAGI
The maintenance reduction effect of the Ladder Sleeper was quantitatively studied
from the view points of ballast pressure reduction. Following tests and analyses
were conducted; (1)the effect of Ladder Sleeper section properties and ground
conditions on ballast pressure was analytically studied; (2)repetitive dynamic
loading test was conducted to the Ballasted Ladder Track using DYLOC test machine;
(3)ballast pressure and ballast shear stress were studied using FEM analysis.