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Showing 1 to 14 of 14 for “"secondary compression"”.
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Secondary compression behaviour of a remolded Puget Sound clay
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Civil and Sanitary Engineering, 1960.
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Contribuição ao estudo do adensamento secundário
… is made in order to observe the phenomenon of secondary compression. A critical analysis of sorne proposed approaches to secondary compression was carried out and a new approach that associates secondary compression to the changes in time of the coefficient of lateral earth pressure (Ko) was …
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A theory for the time dependent yielding and creep of clay
… (1961). The theory models time-dependent compression (secondary compression) and the "aging" effect, or increase in preconsolidation pressure with time under sustained load. The theory appears to be consistent with many aspects of the consolidation behavior of real clays, including: (1) …
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A Three-dimensional Model of Poroviscous Aquifer Deformation
… They are referred to as "instantaneous compression", "primary consolidation" and "secondary compression" according to Terzaghi and Biot's theory of poroelasticity. Among the three modes of consolidation, material behavior during the secondary compression phase has a nonlinear …
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Stiffness characterization of mechanically-compressed cohesive soils using wave propagation
… elements has enabled the measurement of compressional and shear wave velocity of clays over a wide stress range (0.5 - 10 MPa). This research compares the shear modulus measurements using three different technologies that encompass a stress range of 0.1 to 70 MPa. A variety of …
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Estudo da eletro-osmose em solos finos
… and their behavior observed during primary and secondary compression. For this experimental study, two different apparatus were designed to accomplish the objectives above mentioned. A detailed description of the equipment is given. Past field and laboratory experiments have been reviewed, and …
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Sobre uma nova relação índice de vazios tensão em solos
… characteristics of soils subjected to oedometric compression tests is presented. A critical analysis of the empirical relationship between vertical effective stress (σ’v) and specific volume (v) is made. From this analysis a new relationship is proposed, with a rational basis, for the …
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An experimental study on time-dependent behaviour of reconstituted clayey soils in 1D and triaxial compression
… program consists of oedometer and triaxial compression tests on compacted lightly overconsolidated natural soils (high plastic Regina clay and low plastic Calgary till) as well as on artificial soil mixtures made by mixing pure kaolinite or bentonite with crushed Opal, silt or Calgary till. …
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Características de adensamento com drenagem radial de uma argila mole da Baixada Fluminense
… has been examined. The coefficient of secondary compression (Cα) and the effect on it due to sand drain installation rnethod has been tentatively evaluated. The influence on undrained shear strength due the installation of vertical sand drains by the closed madrel method has also been …
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Compressibilidade de uma argila orgânica mole do Recife
… caracteristics, and the coefficient of secondary compression. The non-drained strenght obtained in previous work by other investigators are compared with the non-drained strenght determined through consolidation tests with good quality samples, by means of the equation originally …
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Modeling Macro-scale Clay Behavior at Micro-scale Clay Particle Interfaces
… perspective by measuring the macro-scale compression of a clay soil over time. Clay particles in consolidation tests experience shear and normal forces at the inter-particle level due to force applied to the soil at the macro-scale. These shear and normal forces cause the particles to …
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Effects of Waste Placement Practices on the Engineering Response of Municipal Solid Waste
… <p>Fresh and old wastes at SMRL exhibited unique compression behavior. A majority of the waste was undergoing secondary compression characterized using a secondary compression ratio () ranging from 0.013 to 0.067 with an average of 0.030. In addition, the fresh and old wastes exhibited …
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Electrochemical bonding and clay compression
Soil compression is a topic of increasing importance in the evaluation of foundation sites for the heavy, rigid structures being founded upon them. The first analytical approach to compressive behavior in soil was presented by Terzaghi in the 1920's. Since that time, his consolidation theory has …
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Inter-relationship of mechanical and bio-chemical processes governing the settlement of municipal solid waste (MSW) using the (C +H)/L ratio
… to determine the value of the primary compression index C' _c, the secondary compression index "the inorganic creep rate" coefficient, C' _{[alpha]}, and the "initial and tertiary rate of biodegradation decomposition of the mass volume" compression indices C_{[beta]} and …