Frictional properties of non-welded and welded fractures in granite
The purpose of this study is to conduct direct shear tests on welded and non-welded fractures and find the effect of the cementation and roughness for rock stability. Prior to the direct shear test, all the rock samples are scanned by 3D scanner to get the surface roughness profile. Four specimens a...
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sg-ntu-dr.10356-751172023-03-03T17:10:42Z Frictional properties of non-welded and welded fractures in granite Shen, Linyue Wu Wei (CEE) School of Civil and Environmental Engineering DRNTU::Engineering::Civil engineering::Geotechnical The purpose of this study is to conduct direct shear tests on welded and non-welded fractures and find the effect of the cementation and roughness for rock stability. Prior to the direct shear test, all the rock samples are scanned by 3D scanner to get the surface roughness profile. Four specimens are prepared to be conducted in the direct shear test, and each of them is tested under 4 different normal loads. Residual friction angle of 35.5o is obtained based on direct shear test on a smooth joint. Based on previous study, the friction angle of dry granite varies from 26o to 38o. For welded joints, the results show that the shear strength is increased by the cementation. Comparing the test results of smooth and rough joints, the roughness is positively correlated with the shear strength. Bachelor of Engineering (Civil) 2018-05-28T06:36:03Z 2018-05-28T06:36:03Z 2018 Final Year Project (FYP) http://hdl.handle.net/10356/75117 en Nanyang Technological University 30 p. application/pdf |
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DRNTU::Engineering::Civil engineering::Geotechnical |
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DRNTU::Engineering::Civil engineering::Geotechnical Shen, Linyue Frictional properties of non-welded and welded fractures in granite |
| description |
The purpose of this study is to conduct direct shear tests on welded and non-welded fractures and find the effect of the cementation and roughness for rock stability. Prior to the direct shear test, all the rock samples are scanned by 3D scanner to get the surface roughness profile. Four specimens are prepared to be conducted in the direct shear test, and each of them is tested under 4 different normal loads. Residual friction angle of 35.5o is obtained based on direct shear test on a smooth joint. Based on previous study, the friction angle of dry granite varies from 26o to 38o. For welded joints, the results show that the shear strength is increased by the cementation. Comparing the test results of smooth and rough joints, the roughness is positively correlated with the shear strength. |
| author2 |
Wu Wei (CEE) |
| author_facet |
Wu Wei (CEE) Shen, Linyue |
| format |
Final Year Project |
| author |
Shen, Linyue |
| author_sort |
Shen, Linyue |
| title |
Frictional properties of non-welded and welded fractures in granite |
| title_short |
Frictional properties of non-welded and welded fractures in granite |
| title_full |
Frictional properties of non-welded and welded fractures in granite |
| title_fullStr |
Frictional properties of non-welded and welded fractures in granite |
| title_full_unstemmed |
Frictional properties of non-welded and welded fractures in granite |
| title_sort |
frictional properties of non-welded and welded fractures in granite |
| publishDate |
2018 |
| url |
http://hdl.handle.net/10356/75117 |
| _version_ |
1759854341437521920 |