2374
Proceedings of the 18
th
International Conference on Soil Mechanics and Geotechnical Engineering, Paris 2013
The use of light weight material to fill pipeline trench is an
affective technique to improve pipeline response to PGD. This
technique changes the pipeline response from wrinkling to
beam buckling which is a better deformation mechanism. In this
mechanism the deformation of pipeline is distributed along the
pipeline, despite of wrinkling mechanism which the
deformation concentrated on two points. Also in beam buckling
mechanism, the axial strain of pipeline is very small and the
maximum bending moment reduced and transferred to the
middle of pipeline. Choo et al. (2007) also investigated the use
of light weight material (polystyrene blocks) to remediate the
behavior of buried pipeline under normal faulting. They found
that this technique improved the performance of pipeline under
PGD condition.
4 REFERENCES
O’ Rourke, M., Gadicherla, V., and Abdoun, T., (2003). “Centrifuge
Modelling of Buried Pipelines”, ASCE, Earthquake Engineering;
Rojhani, M., Ebrahimi, M.H., Moradi, M., and Ghalandarzadeh, A.,
(2010). “Building the Faulting Simulator Split Box for
Geotechnical Centrifuge Modeling”, 4th International Congress of
Geotechnical Engineering and Soil Mechanics in Iran, Tehran, Iran.
Taylor, R. N., (1995). Geotechnical Centrifuge Technology, Chapman
& Hall Press.
Woo Choo, Y., Abdoun, T. H., O’Rourke, M., and Ha, D., (2007).
“Remediation for buried pipeline systems under permanent ground
deformation”, Soil Dynamics and Earthquake Engineering.
Wood, D. M., (2004
