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Influence of the water saturation for the strength of volcanic tuffs

Vásárhelyi, Balázs (2002) Influence of the water saturation for the strength of volcanic tuffs. In: Workshop on volcanic rocks, 2002.11.26-2002.11.28., Lisszabon, Portugália.

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Abstract

Different Hungarian volcanic tuffs (andesite, basalt and rhyolite) were investigated with the goal to determine the influence of the water on their strength. The following petrophysical constants were measured for all the samples both in dry and saturated condition: bulk density, ultrasonic wave velocity, unconfirmed compressive strength (UCS) and Young’s modulus. The destruction work (strain energy) was calculated from the measured stress-strain curves, as well. The influence of the water for the UCS, impedance (scalar of the density and the ultrasonic wave velocity) and the destruction work is shown. In these cases linear relationship can be written between the dry and the saturated constants. Both linear and power equation can be used for the effect of the water on Young’s modulus. Finally the UCS is written as the function of the density and the impedance.

Item Type: Conference or Workshop Item (Paper)
Subjects: Q Science / természettudomány > QC Physics / fizika
Q Science / természettudomány > QC Physics / fizika > QC01 Mechanics / mechanika
Q Science / természettudomány > QE Geology / földtudományok > QE06 Petrology. Petrography / kőzettan, petrográfia
Depositing User: Erika Bilicsi
Date Deposited: 28 Nov 2013 09:13
Last Modified: 28 Nov 2013 09:13
URI: http://real.mtak.hu/id/eprint/7547

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