The preliminary study of mechanical properties of medium strength sandstone
碩士 === 國立臺灣大學 === 土木工程學系研究所 === 86 === This reserch uses two kinds of medium strength sandstone samples - Dongken sandstone and Nangan sandstone - to determine the mechanical properties of medium strength sandstone by doing a series test including (1)weak...
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ndltd-TW-086NTU000151032016-06-29T04:13:36Z http://ndltd.ncl.edu.tw/handle/73791670014324595535 The preliminary study of mechanical properties of medium strength sandstone 中強砂岩力學性質初步研究 Lin, Shr-Yan 林士彥 碩士 國立臺灣大學 土木工程學系研究所 86 This reserch uses two kinds of medium strength sandstone samples - Dongken sandstone and Nangan sandstone - to determine the mechanical properties of medium strength sandstone by doing a series test including (1)weakening test;(2)triaxial test with pure shear path;(3)creep test. the result of tests show that the uniaxial strength of Dongken sandstone will decress as the saturation degree of specimen is incress. Compare with mechanical properties and microscopic characters, we suppose that the weakening of Dongken sandstone is caused by the decreasing of the amount of matrix and reduseing the ability of cementation.The result of triaxial tests show that Nangan sandstone will initially perform volume compression when suffer shear stress.When shear stress exceed the shear dilation threshold, the specimen starts to dilate until failure occurs. the normalized shear dilation threshold is about 0.4.The result of creep tests show that the creep behavior of Dongken sandstone is controlled by stress level. Jeng Fu-Shu 鄭富書 --- 1998 學位論文 ; thesis 150 zh-TW |
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碩士 === 國立臺灣大學 === 土木工程學系研究所 === 86 === This reserch uses two kinds of medium strength sandstone samples -
Dongken sandstone and Nangan sandstone - to determine the mechanical
properties of medium strength sandstone by doing a series test including
(1)weakening test;(2)triaxial test with pure shear path;(3)creep test.
the result of tests show that the uniaxial strength of Dongken
sandstone will decress as the saturation degree of specimen is incress.
Compare with mechanical properties and microscopic characters, we suppose
that the weakening of Dongken sandstone is caused by the decreasing of the
amount of matrix and reduseing the ability of cementation.The result of
triaxial tests show that Nangan sandstone will initially perform volume
compression when suffer shear stress.When shear stress exceed the shear
dilation threshold, the specimen starts to dilate until failure occurs.
the normalized shear dilation threshold is about 0.4.The result of creep
tests show that the creep behavior of Dongken sandstone is controlled by
stress level.
|
author2 |
Jeng Fu-Shu |
author_facet |
Jeng Fu-Shu Lin, Shr-Yan 林士彥 |
author |
Lin, Shr-Yan 林士彥 |
spellingShingle |
Lin, Shr-Yan 林士彥 The preliminary study of mechanical properties of medium strength sandstone |
author_sort |
Lin, Shr-Yan |
title |
The preliminary study of mechanical properties of medium strength sandstone |
title_short |
The preliminary study of mechanical properties of medium strength sandstone |
title_full |
The preliminary study of mechanical properties of medium strength sandstone |
title_fullStr |
The preliminary study of mechanical properties of medium strength sandstone |
title_full_unstemmed |
The preliminary study of mechanical properties of medium strength sandstone |
title_sort |
preliminary study of mechanical properties of medium strength sandstone |
publishDate |
1998 |
url |
http://ndltd.ncl.edu.tw/handle/73791670014324595535 |
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