THE BEARING-CAPACITY OF A STRIP FOUNDATION ON GEOGRID-REINFORCED SAND

Laboratory-model test results for the bearing capacity of a strip foun dation supported by a sand layer reinforced with layers of geogrid are presented. Based on the present model test results, the bearing-capac ity ratio with respect to the ultimate bearing capacity, and at levels of limited settlement of the foundation, has been determined. For pra ctical design purposes, it appears that the bearing-capacity ratio at limited levels of settlement is about 67-70% of the beating-capacity r atio calculated on the basis of the ultimate bearing capacity.