2009 Volume 24 Pages 91-96
Thrust force is generated at pipeline bends due to internal pressure. The thrust forces can induce joint separations of the pipelines. In Case of high internal pressure, effective methods for thrust restraint are required.
Methods for thrust restraint using liquefied stabilized soil reinforced with geosynthetics are proposed in this paper. We expect that the liquefied stabilized soil is an effective backfill material against the thrust force. In addition, the geosynthetics contributes to restrain the failure of the liquefied stabilized soil.
In this paper, bending tests of the liquefied stabilized soil and image analyses by PIV(Particle Image Velocimetry) in order to verify the effect of the proposed methods for thrust restraint are discussed.
