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Classification of cut slopes in weathered meta-sedimentary bedrocks

In order of abundance, the meta-sedimentary rocks along Pos Selim Highway in Perak state Malaysia comprise quartz mica schist, graphitic schist and quartzite layers. Field investigations revealed that these meta-sedimentary rocks have gradational weathering profile based on differences particularly...

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Main Authors: Nkpadobi, J.I., Raj, J.K., Ng, T.F.
Format: Article
Published: Turkiye Klinikleri Journal of Medical Sciences 2016
Subjects:
QE Geology
Online Access:http://eprints.um.edu.my/17868/
http://tjees.com/index.php/tjees/article/view/832
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spelling my.um.eprints.178682017-10-04T05:43:25Z http://eprints.um.edu.my/17868/ Classification of cut slopes in weathered meta-sedimentary bedrocks Nkpadobi, J.I. Raj, J.K. Ng, T.F. QE Geology In order of abundance, the meta-sedimentary rocks along Pos Selim Highway in Perak state Malaysia comprise quartz mica schist, graphitic schist and quartzite layers. Field investigations revealed that these meta-sedimentary rocks have gradational weathering profile based on differences particularly in textures, hardness, lateral changes in colour, and consistency of material extension. The results from uniaxial compressive strength tests confirmed field observations whereby failure occurred mostly on outcrops having joints almost perpendicular to foliation. From the kinematic analyses, the investigated cut slopes are unstable with possibilities of wedge and planar failures. Application of rock mass classification schemes including Rock Quality Designation (RQD) and Rock Mass Rating (RMR) yielded almost similar poor to good quality ranges for each investigated rock mass. While Slope Mass Rating (SMR) classified the cut slopes from stable to unstable slopes, this study categorized them into one actively unstable, four marginally stable and five stable slopes. Turkiye Klinikleri Journal of Medical Sciences 2016 Article PeerReviewed Nkpadobi, J.I. and Raj, J.K. and Ng, T.F. (2016) Classification of cut slopes in weathered meta-sedimentary bedrocks. Turkish Journal of Engineering and Environmental Sciences, 40 (3). pp. 114-130. ISSN 1300-0160 http://tjees.com/index.php/tjees/article/view/832
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QE Geology
spellingShingle QE Geology
Nkpadobi, J.I.
Raj, J.K.
Ng, T.F.
Classification of cut slopes in weathered meta-sedimentary bedrocks
description In order of abundance, the meta-sedimentary rocks along Pos Selim Highway in Perak state Malaysia comprise quartz mica schist, graphitic schist and quartzite layers. Field investigations revealed that these meta-sedimentary rocks have gradational weathering profile based on differences particularly in textures, hardness, lateral changes in colour, and consistency of material extension. The results from uniaxial compressive strength tests confirmed field observations whereby failure occurred mostly on outcrops having joints almost perpendicular to foliation. From the kinematic analyses, the investigated cut slopes are unstable with possibilities of wedge and planar failures. Application of rock mass classification schemes including Rock Quality Designation (RQD) and Rock Mass Rating (RMR) yielded almost similar poor to good quality ranges for each investigated rock mass. While Slope Mass Rating (SMR) classified the cut slopes from stable to unstable slopes, this study categorized them into one actively unstable, four marginally stable and five stable slopes.
format Article
author Nkpadobi, J.I.
Raj, J.K.
Ng, T.F.
author_facet Nkpadobi, J.I.
Raj, J.K.
Ng, T.F.
author_sort Nkpadobi, J.I.
title Classification of cut slopes in weathered meta-sedimentary bedrocks
title_short Classification of cut slopes in weathered meta-sedimentary bedrocks
title_full Classification of cut slopes in weathered meta-sedimentary bedrocks
title_fullStr Classification of cut slopes in weathered meta-sedimentary bedrocks
title_full_unstemmed Classification of cut slopes in weathered meta-sedimentary bedrocks
title_sort classification of cut slopes in weathered meta-sedimentary bedrocks
publisher Turkiye Klinikleri Journal of Medical Sciences
publishDate 2016
url http://eprints.um.edu.my/17868/
http://tjees.com/index.php/tjees/article/view/832
_version_ 1643690541722894336
score 13.211869

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