Volume 8, Number 2 (6-2010) | IJCE 2010, 8(2): 107-124 | Back to browse issues page


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Jafarzadeh F, Farahi Jahromi H, Abazari Torghabeh E. Investigating Dynamic Response of a Buried Pipeline in Sandy Soil Layer by 1G Shaking Table Test. IJCE. 2010; 8 (2) :107-124
URL: http://ijce.iust.ac.ir/article-1-453-en.html

Abstract:   (7627 Views)

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

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Type of Study: Research Paper | Subject: Seismic Geotechnique

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