Investigating the parameters influencing the behavior of buried pipelines under dynamic loading is of great
importance. In this study the soil structure interaction of the pipelines with the surrounding soil was addressed using
shaking table tests. Wave propagation along the soil layers was also included in the study. The semi infinite nature of
the field was simulated using a laminar shear box. The soil used in the experiments was Babolsar coastal sand (Iran).
PVC pipes were used due to their analogy with the field. Eight models were constructed with the first four models
having uniform base. In the next models, the non-uniformities of real ground were simulated using a concrete pedestal
installed at the very bottom of the shear box. Pipe deformations under dynamic loading, acceleration distribution in
height, soil settlement and horizontal displacements were measured by strain gauges, acceleratometers and
displacement meters. Analyzing the obtained data, influence of different parameters of dynamic loading such as
acceleration, frequency, soil density, base conditions and shaking direction to pipe axis on the acceleration
amplification ratio and pipe deformation were investigated. Also in order to study the effect of dynamic loading on two
different materials, soil and pipe, the horizontal strains were compared
Rights and permissions | |
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. |