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Centrifuge Consolidation Study for Purposes of Plasticity Theory Validation

LR. HerrmannVN. KaliakinK. MishCK. ShenJ. Sohn

出版	ASTM International, 1986
URL	http://books.google.com.hk/books?id=efN2zgEACAAJ&hl=&source=gbs_api

註釋The experimental phase of the research described in the paper involves a centrifuge model study of consolidation and surface settlement of a storage tank located on a soft soil foundation during a filling-storage-emptying cycle. The tank is placed on a thin layer of sandfill over a weak and compressible deposit of clay soil. The clay deposit is formed by consolidating a kaolin slurry in a 40.6-cm-diameter circular mold which is subsequently moved to the centrifuge for further consolidation and "field stress" initiation. The combined processes of consolidation cause the clay deposit to form an overconsolidated layer in the upper portion and a normally consolidated layer below. This situation simulates conditions often encountered in nature. Pore water pressure transducers are embedded in the clay deposit to monitor the rise and dissipation of water pressure as a result of loading and unloading. Furthermore, the surface settlement profile of the tank bottom is measured using a number of optical-electrical displacement transducers.