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Laboratory model test results for the permanent settlement of a square surface foundation supported by a medium dense sand and subjected to cyclic loads of low frequency, and transient loads have been presented. These tests were conducted in unreinforced soil and also in soil reinforced with layers of geogrid. Based on the model test results, the following conclusions can be drawn: For realization of the maximum possible ultimate bearing capacity due to geogrid reinforcement, the critical depth of reinforcement is about 1.33B, and the critical width of reinforcement layers is about 4B. Geogrid reinforcement has an influence in reducing the maximum permanent settlement of the foundation when subjected to cyclic loading. However the magnitude of the maximum permanent settlement is a function of qs, qdc(max), relative density of the soil, and also the stiffness of the geogrid. Geogrid reinforcement greatly reduces the permanent settlement of the foundation when subjected to transient loading. The magnitude of the maximum permanent settlement is a funcion of the depth of reinforcement, qdc(max), and qu.
Laboratory model test results for the permanent settlement of a square surface foundation supported by a medium dense sand and subjected to cyclic loads of low frequency, and transient loads have been presented. These tests were conducted in unreinforced soil and also in soil reinforced with layers of geogrid. Based on the model test results, the following conclusions can be drawn: For realization of the maximum possible ultimate bearing capacity due to geogrid reinforcement, the critical depth of reinforcement is about 1.33B, and the critical width of reinforcement layers is about 4B. Geogrid reinforcement has an influence in reducing the maximum permanent settlement of the foundation when subjected to cyclic loading. However the magnitude of the maximum permanent settlement is a function of qs, qdc(max), relative density of the soil, and also the stiffness of the geogrid. Geogrid reinforcement greatly reduces the permanent settlement of the foundation when subjected to transient loading. The magnitude of the maximum permanent settlement is a funcion of the depth of reinforcement, qdc(max), and qu.
Dynamic loading on foundation on reinforced sand
Dynamische Belastung eines Fundaments auf verstärktem Sand
Das, B.M. (author)
1998
25 Seiten, 12 Bilder, 4 Tabellen, 3 Quellen
Conference paper
English
Dynamic Loading on Foundation on Reinforced Sand
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