Bearing capacity of strip footings supported on geocell-reinforced sand

A study was undertaken to investigate the bearing capacity of rectangular footings on geogrid-reinforced sand by performing laboratory model tests as well as finite-element analyses. The effects of the depth to the first layer of reinforcement, vertical spacing of reinforcement layers, number of reinforcement layers, and the size of reinforcement sheet on the bearing capacity were investigated. Both the experimental and analytical studies indicated that there was an optimum reinforcement embedment depth at which the bearing capacity was the highest when single-layer reinforcement was used. Also, there appeared to be an optimum reinforcement spacing for multilayer reinforced sand. The bearing capacity of reinforced sand was also found to increase with reinforcement layer number and reinforcement size when the reinforcement was placed within a certain effective zone. In addition, the analyses indicated that increasing reinforcement stiffness beyond a certain value would not bring about further increase in the bearing capacity.

Bearing Capacity of Rectangular Footings on Geogrid-Reinforced Sand

Model studies on circular footing supported on geocell reinforced sand underlain by soft clay

Bearing capacity of square footings on geosynthetic reinforced sand

An experimental evaluation of the behavior of footings on geosynthetic-reinforced sand

The bearing-capacity of a strip foundation on geogrid-reinforced sand

Model test results for the ultimate bearing capacity of rectangular surface foundations supported by geogrid-reinforced sand are presented. The tests were conducted using one type of sand at one relative density of compaction with only one type of geogrid. The length-to-width ratios of the model foundations were varied as 1, 2, 3, and ∞. Based on the model test results, the maximum required depths of reinforcement and the sizes of the geogrid layers to obtain maximum-bearing-capacity ratios have been presented.

Ultimate Bearing Capacity of Rectangular Foundations on Geogrid-Reinforced Sand

Results of small-scale laboratory model tests to determine the ultimate bearing capacity of a strip foundation supported by sand with multiple layers of geogrid reinforcement are presented. Tests were conducted with only one type of geogrid and a sand compacted to one relative density. The embedment ratio of the foundation was varied from zero to 0.6. It is found that, for the given reinforcement-depth ratio, the bearing capacity ratio with respect to ultimate load increases with embedment. The relationship between the bearing capacity ratio at ultimate load and at limited levels of settlement (less than or equal to 5% of foundation width) is also presented. The bearing capacity ratio at limited levels of settlement is smaller than the value at ultimate load.

Bearing Capacity of Strip Foundation on Geogrid-Reinforced Clay

Foundation on strong sand underlain by weak clay with geogrid at the interface

Geotechnical Properties of Crude Oil Contaminated Sand

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