Response of clay shale to the variation of moisture content

Deterioration of shale often occurs in open mining activity because the material is exposed to climate change which causes repetitive change in moisture content and weathering process. Furthermore, the dumping of excavated material caused an accumulation of water and pounding at the intermediate la...

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Main Authors: Asof, Marwan, Gofar, Nurly, Rahmatullah, Rahmatullah
Format: Article
Language:English
Published: 2008
Subjects:
Online Access:http://eprints.utm.my/8623/
http://eprints.utm.my/8623/1/MAsof2008-Response_Of_Clay_Shale_To_The.pdf
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author Asof, Marwan
Gofar, Nurly
Rahmatullah, Rahmatullah
author_facet Asof, Marwan
Gofar, Nurly
Rahmatullah, Rahmatullah
author_sort Asof, Marwan
building UTeM Institutional Repository
collection Online Access
description Deterioration of shale often occurs in open mining activity because the material is exposed to climate change which causes repetitive change in moisture content and weathering process. Furthermore, the dumping of excavated material caused an accumulation of water and pounding at the intermediate layer and further reduced the shear strength. The increase of water content beyond the infiltration capacity will cause the reduction of inter-particle bonding as well as cohesion of the shale. This research focuses on the effect of water content and creep on both exposed and dumped shale. Direct shear test performed on undisturbed shale and exposed shale showed that creep cause a reduction on shear strength by 60%. Shear strength tests conducted on samples obtained at random from dumped area confirmed that the change in water content significantly affects shear strength. Therefore, the prediction of slope stability should be based on the actual shear strength of both the shale and the dumped material.
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spelling utm-86232010-06-02T01:56:40Z http://eprints.utm.my/8623/ Response of clay shale to the variation of moisture content Asof, Marwan Gofar, Nurly Rahmatullah, Rahmatullah TA Engineering (General). Civil engineering (General) Deterioration of shale often occurs in open mining activity because the material is exposed to climate change which causes repetitive change in moisture content and weathering process. Furthermore, the dumping of excavated material caused an accumulation of water and pounding at the intermediate layer and further reduced the shear strength. The increase of water content beyond the infiltration capacity will cause the reduction of inter-particle bonding as well as cohesion of the shale. This research focuses on the effect of water content and creep on both exposed and dumped shale. Direct shear test performed on undisturbed shale and exposed shale showed that creep cause a reduction on shear strength by 60%. Shear strength tests conducted on samples obtained at random from dumped area confirmed that the change in water content significantly affects shear strength. Therefore, the prediction of slope stability should be based on the actual shear strength of both the shale and the dumped material. 2008 Article PeerReviewed application/pdf en http://eprints.utm.my/8623/1/MAsof2008-Response_Of_Clay_Shale_To_The.pdf Asof, Marwan and Gofar, Nurly and Rahmatullah, Rahmatullah (2008) Response of clay shale to the variation of moisture content. Geotechnical & Highway Engineering . http://www.fka.utm.my/
spellingShingle TA Engineering (General). Civil engineering (General)
Asof, Marwan
Gofar, Nurly
Rahmatullah, Rahmatullah
Response of clay shale to the variation of moisture content
title Response of clay shale to the variation of moisture content
title_full Response of clay shale to the variation of moisture content
title_fullStr Response of clay shale to the variation of moisture content
title_full_unstemmed Response of clay shale to the variation of moisture content
title_short Response of clay shale to the variation of moisture content
title_sort response of clay shale to the variation of moisture content
topic TA Engineering (General). Civil engineering (General)
url http://eprints.utm.my/8623/
http://eprints.utm.my/8623/
http://eprints.utm.my/8623/1/MAsof2008-Response_Of_Clay_Shale_To_The.pdf