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Development of a new creep testing equipment to obtain long-term deformation parameters of salt

Author:
S.M.A. Hosseini
,
F. Sereshki
,
محمود شریعتی
,
S.M.E. Jalali
,
F. Crotogino
,
Mahmoud Shariati
Year
: 2012
Abstract: Creep phenomenon in rock engineering plays a key role in the development of underground spaces as they must be stable enough for a long period of time. The study describes the main ideas of the design and manufacturing of a new creep testing machine that is set up at Shahrood University of Technology (SUT). The testing machine is capable of performing creep tests at low equivalent stresses on more than one cylindrical rock sample simultaneously at a very low cost. To evaluate the performance of the equipment, a series of creep tests were performed on salt rock samples and their axial and lateral deformations were measured by dial gauges. Measurements were taken under constant temperature, humidity and sustained loads. The results revealed that both axial and lateral creep behavior of specimens follow the same pattern with an idealized salt rock creep curve. The experiments also indicated that the steady state creep rate rises with increasing initial applied stress level.
URI: https://libsearch.um.ac.ir:443/fum/handle/fum/3346462
Keyword(s): Long-term creep,uniaxial creep test,salt rock,lever arm,rock testing standards
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    Development of a new creep testing equipment to obtain long-term deformation parameters of salt

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contributor authorS.M.A. Hosseinien
contributor authorF. Sereshkien
contributor authorمحمود شریعتیen
contributor authorS.M.E. Jalalien
contributor authorF. Crotoginoen
contributor authorMahmoud Shariatifa
date accessioned2020-06-06T13:13:20Z
date available2020-06-06T13:13:20Z
date issued2012
identifier urihttps://libsearch.um.ac.ir:443/fum/handle/fum/3346462?locale-attribute=en
description abstractCreep phenomenon in rock engineering plays a key role in the development of underground spaces as they must be stable enough for a long period of time. The study describes the main ideas of the design and manufacturing of a new creep testing machine that is set up at Shahrood University of Technology (SUT). The testing machine is capable of performing creep tests at low equivalent stresses on more than one cylindrical rock sample simultaneously at a very low cost. To evaluate the performance of the equipment, a series of creep tests were performed on salt rock samples and their axial and lateral deformations were measured by dial gauges. Measurements were taken under constant temperature, humidity and sustained loads. The results revealed that both axial and lateral creep behavior of specimens follow the same pattern with an idealized salt rock creep curve. The experiments also indicated that the steady state creep rate rises with increasing initial applied stress level.en
languageEnglish
titleDevelopment of a new creep testing equipment to obtain long-term deformation parameters of salten
typeJournal Paper
contenttypeExternal Fulltext
subject keywordsLong-term creepen
subject keywordsuniaxial creep testen
subject keywordssalt rocken
subject keywordslever armen
subject keywordsrock testing standardsen
journal titleJournal of Mininig and Environmentfa
pages15-20
journal volume3
journal issue1
identifier linkhttps://profdoc.um.ac.ir/paper-abstract-1035197.html
identifier articleid1035197
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