Determination of dynamic Youngs modulus of vulnerable speleothems

Intact and vulnerable speleothems can be investigated in situ to estimate an upper limit of prehistoric peak ground acceleration. It is possible to say that intact speleothem was not loaded by horizontal acceleration higher than the value of horizontal acceleration resulting in failure, which is ass...

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Main Authors: Pavel Konečný, Markéta Lednická, Kamil Souček, Lubomír Staš, Lukáš Kubina, Katalin Gribovszki
Format: Article
Language:English
Published: Technical University of Kosice 2015-09-01
Series:Acta Montanistica Slovaca
Subjects:
Online Access:http://actamont.tuke.sk/pdf/2015/n2/10Konecny.pdf
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spelling doaj-de50001d8d3442de924fcec13f476a672020-11-24T23:55:15ZengTechnical University of Kosice Acta Montanistica Slovaca1335-17882015-09-01202141147ams20020141Determination of dynamic Youngs modulus of vulnerable speleothemsPavel Konečný0Markéta Lednická1Kamil Souček2Lubomír Staš3Lukáš Kubina4Katalin Gribovszki5Institute of Geonics of Czech Academy of Science, v.v.i., Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicInstitute of Geonics of Czech Academy of Science, v.v.i., Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicInstitute of Geonics of Czech Academy of Science, v.v.i., Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicInstitute of Geonics of Czech Academy of Science, v.v.i., Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicInstitute of Geonics of Czech Academy of Science, v.v.i., Studentská 1768, 708 00 Ostrava-Poruba, Czech RepublicDepartment of Meteorology and Geophysics, University of Vienna, UZA II, Althanstraße 14, 1090 Wien, AustriaIntact and vulnerable speleothems can be investigated in situ to estimate an upper limit of prehistoric peak ground acceleration. It is possible to say that intact speleothem was not loaded by horizontal acceleration higher than the value of horizontal acceleration resulting in failure, which is assessed by theoretical calculations. Mechanical properties of broken speleothems originating in the same cave are considered for this calculation. In the present paper, determination of the dynamic Youngs modulus of broken speleothems originated in Baradla-Domica cave system (Northern Hungary and Southern Slovakia) is presented. The dynamic Youngs modulus can be calculated based on P and S-wave velocities and bulk density of tested specimens. Two different approaches to determination of bulk density of irregular speleothem specimens are presented - determination of bulk density by standard Water displacement method and by X-Ray Computed Tomography.http://actamont.tuke.sk/pdf/2015/n2/10Konecny.pdfdynamic Youngs modulusspeleothembulk densityX-Ray Computed Tomography
collection DOAJ
language English
format Article
sources DOAJ
author Pavel Konečný
Markéta Lednická
Kamil Souček
Lubomír Staš
Lukáš Kubina
Katalin Gribovszki
spellingShingle Pavel Konečný
Markéta Lednická
Kamil Souček
Lubomír Staš
Lukáš Kubina
Katalin Gribovszki
Determination of dynamic Youngs modulus of vulnerable speleothems
Acta Montanistica Slovaca
dynamic Youngs modulus
speleothem
bulk density
X-Ray Computed Tomography
author_facet Pavel Konečný
Markéta Lednická
Kamil Souček
Lubomír Staš
Lukáš Kubina
Katalin Gribovszki
author_sort Pavel Konečný
title Determination of dynamic Youngs modulus of vulnerable speleothems
title_short Determination of dynamic Youngs modulus of vulnerable speleothems
title_full Determination of dynamic Youngs modulus of vulnerable speleothems
title_fullStr Determination of dynamic Youngs modulus of vulnerable speleothems
title_full_unstemmed Determination of dynamic Youngs modulus of vulnerable speleothems
title_sort determination of dynamic youngs modulus of vulnerable speleothems
publisher Technical University of Kosice
series Acta Montanistica Slovaca
issn 1335-1788
publishDate 2015-09-01
description Intact and vulnerable speleothems can be investigated in situ to estimate an upper limit of prehistoric peak ground acceleration. It is possible to say that intact speleothem was not loaded by horizontal acceleration higher than the value of horizontal acceleration resulting in failure, which is assessed by theoretical calculations. Mechanical properties of broken speleothems originating in the same cave are considered for this calculation. In the present paper, determination of the dynamic Youngs modulus of broken speleothems originated in Baradla-Domica cave system (Northern Hungary and Southern Slovakia) is presented. The dynamic Youngs modulus can be calculated based on P and S-wave velocities and bulk density of tested specimens. Two different approaches to determination of bulk density of irregular speleothem specimens are presented - determination of bulk density by standard Water displacement method and by X-Ray Computed Tomography.
topic dynamic Youngs modulus
speleothem
bulk density
X-Ray Computed Tomography
url http://actamont.tuke.sk/pdf/2015/n2/10Konecny.pdf
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AT kamilsoucek determinationofdynamicyoungsmodulusofvulnerablespeleothems
AT lubomirstas determinationofdynamicyoungsmodulusofvulnerablespeleothems
AT lukaskubina determinationofdynamicyoungsmodulusofvulnerablespeleothems
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