Effect of earthquake induced transverse permanent ground deformation on buried continuous pipeline using winkler approach.

Abstract

Many complex soil-structure interaction problems can be simplified by considering one-dimensional beam (structure) resting on elastic spring (soil). The present study uses Winkler formulation to investigate the effect of transverse permanent ground deformation (PGD) on buried continuous pipeline. Starting with a brief review on previous studies in the area of PGD, present study developed a closed-form formulation for the pipe under transverse PGD based on available boundary conditions and compatibility conditions and then the current analytical analysis is validated with the pipe deformation curves along the PGD zone obtained by earlier researchers and it has been found that validation curves are matched in good agreement. Further, the proposed closed-form solutions are used to obtain the influence of various parameters such as PGD width, peak ground deformation, soil stiffness on pipe response.