A Simple Gauge for Local Small Strain Measurements in the Laboratory

Goto, Shigeru; Tatsuoka, Fumio; Shibuya, Satoru; Kim, You-Seong; Sato, Takeshi

doi:10.3208/sandf1972.31.169

Cited by 338 publications

(116 citation statements)

References 10 publications

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“…Note that the Gd value was normalized by the void ratio function, f(e), in Eq. (6). Decreases in the Gd values during liquefaction were observed with the reduction of the eŠective stress level on all the specimens.…”

Section: Applicability Of Reconstituted Sample For In-situ Frozen Samplementioning

confidence: 92%

“…Refer to Kiyota et al (2009) for the details of the apparatus and the transducers employed. The vertical static Young's modulus, Ev, was evaluated from the small cyclic stress-strain relationships with a double amplitude vertical strain of approximately 0.002z, which were measured with a pair of local deformation transducers (LDTs, Goto et al, 1991). To calculate the static shear moduli, Gs * (denoted as Gs), from the Ev, Eq.…”

Section: Test Apparatusmentioning

confidence: 99%

See 1 more Smart Citation

Aging Effects on Small Strain Shear Moduli and Liquefaction Properties of in-situ Frozen and Reconstituted Sandy Soils

Kamiya

Koseki

Sato

et al. 2009

Soils and Foundations

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Section: Applicability Of Reconstituted Sample For In-situ Frozen Samplementioning

confidence: 92%

Section: Test Apparatusmentioning

confidence: 99%

Aging Effects on Small Strain Shear Moduli and Liquefaction Properties of in-situ Frozen and Reconstituted Sandy Soils

Kamiya

Koseki

Sato

et al. 2009

Soils and Foundations

Self Cite

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“…The tests were carried out under monotonic displacement control, at a rate of 0.1 mm/min (slower than the value recommended by ASTM D1633 (2007)), in order to perform small unload-reload cycles in some of the specimens. Local deformation transducers (LDTs) were used for increased strain measurement accuracy (Goto et al, 1991;Hayano et al, 1997).…”

Section: Specimen Fabrication and Testingmentioning

confidence: 99%

Structural Performance of Alkali-Activated Soil Ash versus Soil Cement

Rı́os

Cristelo

Fonseca

et al. 2016

J. Mater. Civ. Eng.

115

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Alkaline activation of fly ash was used to improve the mechanical performance of a silty sand, considering this new material as a replacement of soil-cement applications namely bases and subbases for transportation infrastructures. For that purpose, specimens were molded from mixtures of soil, fly ash and an alkaline activator made from sodium hydroxide and sodium silicate. Uniaxial compression tests showed that strength is highly increased by the addition of this new binder. The results described a high stiffness material, with an initial volume reduction followed by significant dilation. All specimens have clearly reached the respective yield surface during shearing, and peak strength Mohr-Coulomb parameters were defined for each mixture. The evolution of the microstructure during curing, responsible for the mechanical behavior detected in the previous tests, was observed by scanning electron microscopy. These results were compared to soil-cement data obtained previously with the same soil at similar compaction conditions. The main difference between both binders was the curing rate, with alkali activated specimens showing a more progressive and long-lasting strength increase. This was analyzed taking into account the chemical process responsible for the behavior of the mixtures.

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“…As shown in Photo 1, in the case of passive control tests, axial strain (e1) was measured with three pairs of vertical local deformation transducers (V-LDTs) (Goto et al, 1991) in addition to external measurement with a linear variable diŠerential transducer (LVDT). In both active and passive control tests, one of the two lateral strains (e2) was measured by another three pairs of horizontal local deformation transducers (H-LDTs).…”

Section: Large Scale True Triaxial Apparatusmentioning

confidence: 99%