The technological process of geogrid are :Buy geogrid→Geogrid  tested in laboratory→Geogrid transportation to the scene assembly laid→ Laying geogrid is complete →Prepared mechanical equipment →Laying caps gravel→ Watering ,compaction→ Ceiling height and degree of compaction.The construction technological process is : Bearing layer under the testing and cleaning→ Laying geogrid→overlap,colligation,fixation→Paving the upper subgrade soil→Rolling→Test.