Finite Element Analysis of Shallow Soft Soil Foundation Reinforced by Geogrids

In order to appraise the effect on which geotechnical reinforce shallow soft soil foundaton,monitoring the stability of soft soil foundaton,based on computation parameters determined by test,the stability of shallow soft soil foundaton with step loading was studied,and influencing factor of reinforced effect was analyzed.Results show that soft base's horizontal displacement and vertical settlement of shallow soft soil foundation tally with observation;adoption of geogrid has a large reduction of horizontal displacement and little effect on vertical settlement of the embankment;with the increasing of the embankment soil,geogrid' pull is increasing gradually and peak value of geogrid's pull moves to the midline of road base;horizontal displacement restriction of slope side's points becoming bigger with increasing of the reinforced modulus,but reinforced modulus' change doesn't change the settlement of embankment;paving multi-layers geogrid has a better disposal effect than only one layer,but its effect isn't obvious,if paving only one layer of geotechnical,it will have a best effect that paving geotechnical on the surface of ground.