Study of the Effect of Displacement Velocity and Cycles on the Longitudinal Subgrade Reaction

摘要

An important factor in the analysis of the behavior of buried pipelines is the subgrade reaction, which is generally considered to be proportional to the amount of one directional movement. However, large cyclic deformations during strong earthquakes drew attention to the fact that the effect of displacement velocity and cyclic loading have to be taken into account. A series of dynamic loading tests has been conducted to examine the cyclic and velocity effect using a shaking table to produce seismic loadings.