Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya

Jaya Laxmi Singh; Naresh Kazi Tamrakar

doi:doi:10.11648/j.ajset.20170201.12

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Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya

Jaya Laxmi Singh, Naresh Kazi Tamrakar

Published in American Journal of Science, Engineering and Technology (Volume 2, Issue 1)

Received: 29 October 2016 Accepted: 2 December 2016 Published: 20 January 2017

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Abstract

The Malekhu-Thopal Khola area is rich in metamorphic rocks. The extension of road along the Malekhu-Thopal Khola can lead to the instability of stream bank slope. The road of the Malekhu Khola corridor has been extended from the Prithvi Highway to the southern remote area, and the road of the Thopal Khola corridor has been extended from the Prithvi Highway to the North in Dhading Besi. The study is focused on the Slope Mass Rating (SMR) of the road cut slope as well as the streambank slopes along the Malekhu Khola and the Thopal Khola (Malekhu-Dhading road).The result shows that the 38% slope of the study area is stable in terms of plane failure. The slopes lying across the Malekhu Formation and the Kalitar Formation are unstable. Considering the slopes in terms of toppling failure, 41% of the slopes are found to be stable, whereas some range from partially stable to stable slopes to the partially stable to the unstable slopes. Similarly, 50% of the slopes are stable to partially stable in terms of wedge failure, whereas some other slopes lying in the Fagfog Quartzite, Malekhu Limestone, Kalitar Formation and the Kulekhani Formation lie in unstable slope category. If the slope stability of the whole stream corridor is considered, only 20–25% of the slope area is completely stable while the remaining is vulnerable due to various slope failures.

Published in	American Journal of Science, Engineering and Technology (Volume 2, Issue 1)
DOI	10.11648/j.ajset.20170201.12
Page(s)	6-14
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2017. Published by Science Publishing Group

Keywords

Slope Mass Rating (SMR), Rock Mass Rating (RMR), Toppling Failure, Plane Failure, Wedge Failure, Lesser Himalaya

References

[1]	Bieniawski, Z. T., 1989. Engineering rock mass classifications. John Wiley and Sons,
[2]	Romana, M., Seron, J.B., 2001. Montalar E. La classificacion geomecenica SMR: Applicacion experiencias y validacion. In: Proceedings of V Simposio Nacional sobre taludes y laderas inestables, Madrid, pp. 393–404.
[3]	Romana, M., Seron, J.B., 2003. Montalar E. SMR Geomechanics classification: application, experience and validation. In: Proceedings of the international symposium on the role of rock Mechanics, South Africa Ins. Min. Metall, pp. 1–4.
[4]	Romana, M., Seron, J.B., Jorda, L., Velez M.I., 2005. La clasificaciongeomecanica SMR parataludes: Eestado actual, aplicacion y experiencia internacional. In: Proceedings of VI Simposio Nacional sobre taludes y laderas inestables, Valencia, pp. 239–50.
[5]	Stöcklin, J., and Bhattarai, K.D., 1977. Geology of Kathmandu Area and Central Mahabharat Range, Nepal Himalaya: Report of Dept. of Mines and Geology/UNDP (Unpublished), 86 p.
[6]	Stöcklin J., 1981. Geology of Nepal and its regional Frame. Journal of the Geological Society of London, 137p.
[7]	Sen, Z., Sadagah B. H., 2003. Modified rock mass classification system by continuous rating. Engineering Geology, v. 67, pp. 269–280.
[8]	Singh, J. L., Tamrakar N. K., 2013. Rock Mass Rating and Geological Strength Index of rock masses of Thopal-Malekhu River areas, Central Nepal Lesser Himalaya. Bulletin of the Department of Geology, Ktm, Nepal, v. 16, pp. 29–42.
[9]	Romana, M., 1985. New adjustment ratings for application of Bieniawski classification to slopes. Proceedings of the International Symposium on the Role of Rock Mechanics in Excavations for Mining and Civil Works. International Society of Rock Mechanics, Zacatecas, pp. 49–53.
[10]	Shrestha, P., and Tamrakar, N. K., 2007a, Streambankerodibility and lateral instability hazard in the Manahara River, Kathmandu basin, Nepal. Jour. of Nepal Geol. Soc., v. 35, pp. 55-66.
[11]	Upreti, B. N. and Dhital, M. R., 1996. Landslide studies and management in Nepal. ICIMOD, 87p.

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Jaya Laxmi Singh, Naresh Kazi Tamrakar. (2017). Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya. American Journal of Science, Engineering and Technology, 2(1), 6-14. https://doi.org/10.11648/j.ajset.20170201.12

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ACS Style

Jaya Laxmi Singh; Naresh Kazi Tamrakar. Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya. Am. J. Sci. Eng. Technol. 2017, 2(1), 6-14. doi: 10.11648/j.ajset.20170201.12

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AMA Style

Jaya Laxmi Singh, Naresh Kazi Tamrakar. Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya. Am J Sci Eng Technol. 2017;2(1):6-14. doi: 10.11648/j.ajset.20170201.12

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@article{10.11648/j.ajset.20170201.12,
  author = {Jaya Laxmi Singh and Naresh Kazi Tamrakar},
  title = {Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya},
  journal = {American Journal of Science, Engineering and Technology},
  volume = {2},
  number = {1},
  pages = {6-14},
  doi = {10.11648/j.ajset.20170201.12},
  url = {https://doi.org/10.11648/j.ajset.20170201.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20170201.12},
  abstract = {The Malekhu-Thopal Khola area is rich in metamorphic rocks. The extension of road along the Malekhu-Thopal Khola can lead to the instability of stream bank slope. The road of the Malekhu Khola corridor has been extended from the Prithvi Highway to the southern remote area, and the road of the Thopal Khola corridor has been extended from the Prithvi Highway to the North in Dhading Besi. The study is focused on the Slope Mass Rating (SMR) of the road cut slope as well as the streambank slopes along the Malekhu Khola and the Thopal Khola (Malekhu-Dhading road).The result shows that the 38% slope of the study area is stable in terms of plane failure. The slopes lying across the Malekhu Formation and the Kalitar Formation are unstable. Considering the slopes in terms of toppling failure, 41% of the slopes are found to be stable, whereas some range from partially stable to stable slopes to the partially stable to the unstable slopes. Similarly, 50% of the slopes are stable to partially stable in terms of wedge failure, whereas some other slopes lying in the Fagfog Quartzite, Malekhu Limestone, Kalitar Formation and the Kulekhani Formation lie in unstable slope category. If the slope stability of the whole stream corridor is considered, only 20–25% of the slope area is completely stable while the remaining is vulnerable due to various slope failures.},
 year = {2017}
}

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TY  - JOUR
T1  - Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya
AU  - Jaya Laxmi Singh
AU  - Naresh Kazi Tamrakar
Y1  - 2017/01/20
PY  - 2017
N1  - https://doi.org/10.11648/j.ajset.20170201.12
DO  - 10.11648/j.ajset.20170201.12
T2  - American Journal of Science, Engineering and Technology
JF  - American Journal of Science, Engineering and Technology
JO  - American Journal of Science, Engineering and Technology
SP  - 6
EP  - 14
PB  - Science Publishing Group
SN  - 2578-8353
UR  - https://doi.org/10.11648/j.ajset.20170201.12
AB  - The Malekhu-Thopal Khola area is rich in metamorphic rocks. The extension of road along the Malekhu-Thopal Khola can lead to the instability of stream bank slope. The road of the Malekhu Khola corridor has been extended from the Prithvi Highway to the southern remote area, and the road of the Thopal Khola corridor has been extended from the Prithvi Highway to the North in Dhading Besi. The study is focused on the Slope Mass Rating (SMR) of the road cut slope as well as the streambank slopes along the Malekhu Khola and the Thopal Khola (Malekhu-Dhading road).The result shows that the 38% slope of the study area is stable in terms of plane failure. The slopes lying across the Malekhu Formation and the Kalitar Formation are unstable. Considering the slopes in terms of toppling failure, 41% of the slopes are found to be stable, whereas some range from partially stable to stable slopes to the partially stable to the unstable slopes. Similarly, 50% of the slopes are stable to partially stable in terms of wedge failure, whereas some other slopes lying in the Fagfog Quartzite, Malekhu Limestone, Kalitar Formation and the Kulekhani Formation lie in unstable slope category. If the slope stability of the whole stream corridor is considered, only 20–25% of the slope area is completely stable while the remaining is vulnerable due to various slope failures.
VL  - 2
IS  - 1
ER  -

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Author Information

Jaya Laxmi Singh

Central Department of Geology, Tribhuvan University, Kathmandu, Nepal
Naresh Kazi Tamrakar

Central Department of Geology, Tribhuvan University, Kathmandu, Nepal

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APA Style

Jaya Laxmi Singh, Naresh Kazi Tamrakar. (2017). Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya. American Journal of Science, Engineering and Technology, 2(1), 6-14. https://doi.org/10.11648/j.ajset.20170201.12

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ACS Style

Jaya Laxmi Singh; Naresh Kazi Tamrakar. Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya. Am. J. Sci. Eng. Technol. 2017, 2(1), 6-14. doi: 10.11648/j.ajset.20170201.12

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AMA Style

Jaya Laxmi Singh, Naresh Kazi Tamrakar. Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya. Am J Sci Eng Technol. 2017;2(1):6-14. doi: 10.11648/j.ajset.20170201.12

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@article{10.11648/j.ajset.20170201.12,
  author = {Jaya Laxmi Singh and Naresh Kazi Tamrakar},
  title = {Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya},
  journal = {American Journal of Science, Engineering and Technology},
  volume = {2},
  number = {1},
  pages = {6-14},
  doi = {10.11648/j.ajset.20170201.12},
  url = {https://doi.org/10.11648/j.ajset.20170201.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajset.20170201.12},
  abstract = {The Malekhu-Thopal Khola area is rich in metamorphic rocks. The extension of road along the Malekhu-Thopal Khola can lead to the instability of stream bank slope. The road of the Malekhu Khola corridor has been extended from the Prithvi Highway to the southern remote area, and the road of the Thopal Khola corridor has been extended from the Prithvi Highway to the North in Dhading Besi. The study is focused on the Slope Mass Rating (SMR) of the road cut slope as well as the streambank slopes along the Malekhu Khola and the Thopal Khola (Malekhu-Dhading road).The result shows that the 38% slope of the study area is stable in terms of plane failure. The slopes lying across the Malekhu Formation and the Kalitar Formation are unstable. Considering the slopes in terms of toppling failure, 41% of the slopes are found to be stable, whereas some range from partially stable to stable slopes to the partially stable to the unstable slopes. Similarly, 50% of the slopes are stable to partially stable in terms of wedge failure, whereas some other slopes lying in the Fagfog Quartzite, Malekhu Limestone, Kalitar Formation and the Kulekhani Formation lie in unstable slope category. If the slope stability of the whole stream corridor is considered, only 20–25% of the slope area is completely stable while the remaining is vulnerable due to various slope failures.},
 year = {2017}
}

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TY  - JOUR
T1  - Slope Mass Rating Around Malekhu-Thopal Khola Corrider, Malekhu, Central Nepal Lesser Himalaya
AU  - Jaya Laxmi Singh
AU  - Naresh Kazi Tamrakar
Y1  - 2017/01/20
PY  - 2017
N1  - https://doi.org/10.11648/j.ajset.20170201.12
DO  - 10.11648/j.ajset.20170201.12
T2  - American Journal of Science, Engineering and Technology
JF  - American Journal of Science, Engineering and Technology
JO  - American Journal of Science, Engineering and Technology
SP  - 6
EP  - 14
PB  - Science Publishing Group
SN  - 2578-8353
UR  - https://doi.org/10.11648/j.ajset.20170201.12
AB  - The Malekhu-Thopal Khola area is rich in metamorphic rocks. The extension of road along the Malekhu-Thopal Khola can lead to the instability of stream bank slope. The road of the Malekhu Khola corridor has been extended from the Prithvi Highway to the southern remote area, and the road of the Thopal Khola corridor has been extended from the Prithvi Highway to the North in Dhading Besi. The study is focused on the Slope Mass Rating (SMR) of the road cut slope as well as the streambank slopes along the Malekhu Khola and the Thopal Khola (Malekhu-Dhading road).The result shows that the 38% slope of the study area is stable in terms of plane failure. The slopes lying across the Malekhu Formation and the Kalitar Formation are unstable. Considering the slopes in terms of toppling failure, 41% of the slopes are found to be stable, whereas some range from partially stable to stable slopes to the partially stable to the unstable slopes. Similarly, 50% of the slopes are stable to partially stable in terms of wedge failure, whereas some other slopes lying in the Fagfog Quartzite, Malekhu Limestone, Kalitar Formation and the Kulekhani Formation lie in unstable slope category. If the slope stability of the whole stream corridor is considered, only 20–25% of the slope area is completely stable while the remaining is vulnerable due to various slope failures.
VL  - 2
IS  - 1
ER  -

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