Mechanical Characteristics Model Test for Geogrid-reinforced and Pile-supported Composite Foundation

In this paper,based on a coastal railway soft soil treatment project,indoors model test for mechanical characteristics of geogrid-reinforced and pile-supported embankment has been studied.The following conclusions have been drawn: axial force rises following increase of embankment load,neutral point of piles drops as pile spacing increasing,pile-soil stress ratio rises as increase of embankment load and increases obviously as pile spacing increasing etc.,which could provide theoretical references for engineering design.