Bearing capacity of sand foundation reinforced by geonet

A series of bearing capacity tests were performed on reinforced sand using the strip footing. The sand was reinforced with geonet which has relatively weak tensile strength. Types of reinforcement were one layer, multi-layer, and mattress. In the case of the one layer type it presents the effective depth and length of geonet in relation to the increase of ultimate bearing capacity. In the case of multi-layer type the optimum layer number was investigated, and tests were performed on the unreinforced footing with the same depth as the maximum reinforcing depth. And in the case of mattress-type reinforcement the effects of the thickness and the length of mattress were investigated. Of the three reinforcing methods the greatest ultimate bearing capacity was obtained from multi-layer type and the optimum layer number was 4 and the ultimate bearing capacity ratio was 3.65.