The research work assessed the stability of rock slopes for optimum exploitation of limestone deposits at Obajana in Kogi State and Ewekoro in Ogun state. Geological mapping was carried out to measure the orientations of discontinuities. The orientation data obtained were plotted on stereonets to determine pole concentration and major joint sets using Dips 5.0 software from Rocscience. Two joint sets were identified in Obajana with orientations of 720/0890 and 880/2210 while three joint sets with orientations of 610/0480, 160/2800 and 900/1400 were identified in Ewekoro quarry face. The Dips software was further used to perform kinematic analyses for toppling, planar and wedge failures for each of the faces investigated. The friction angles for the kinematic analyses were obtained using Roclab 1.0 software (Rocscience, 2002). The results of the analyses show that toppling failure cannot occur in Obajana while planar and wedge failures may occur. The three failure modes (toppling, planar and wedge) were identified in Ewekoro.
| Published in | Earth Sciences (Volume 3, Issue 2) |
| DOI | 10.11648/j.earth.20140302.11 |
| Page(s) | 34-41 |
| 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), 2014. Published by Science Publishing Group |
Joint Sets, Pole, Quarry Face, Planar Failure, Wedge Failure, Toppling Failure
| [1] | Akande, J.M. and Idris, M.A. (2007). Mechanism of rock slope failure in selected quarries in Oyo sate, Nigeria: Advanced Materials Research, Trans Tech Publications, Switzerland, Vol. 18-19, pp. 13 – 19 |
| [2] | American Society for Testing Materials (ASTM), (1994). Annual Book of ASTM Standards-construction: Soil and Rocks. ASTM Publication, Vol. 04.08.978, p. 975 |
| [3] | Aydin, A. and Basu, A. (2005). The Schmidt hammer in rock material characterization: Journal of Engineering Geology, 81 (2005), Elsivier International, pp. 1-14. |
| [4] | Eberhardt, E. (2003). Rock slope stability analysis - utilization of advanced numerical techniques, Vancouver, Canada: Earth and Ocean Sciences, University of British Columbia. Retrieved on 23rd August, 2010 from www.eos.ubc.ca/personal/erik/e-paper, p. 41 |
| [5] | Goodman, R.E. (1980). Introduction to Rock mechanics: John Wiley and Sons, New York, p. 478 |
| [6] | Goodman, R.E. and Bray, J.E. (1976). Toppling of rock slopes: Proceedings of speciality conference on rock engineering for foundations and slopes, Colorado, Vol. 02, pp. 201 – 243. |
| [7] | Goodman, R.E., (1989). Introduction to Rock Mechanics (2nd edition): Wiley, New York, p. 562 |
| [8] | Gurocak, Z., Alemdag, S. and Zaman, M.M. (2008). Rock slope stability and excavatability assessment of rocks at the Kapikaya dam site, Turkey: Journal of Engineering Geology, vol. 96(1–2): pp. 17–27. |
| [9] | Hoek, E. and Bray, J.W. (1981). Rock Slope Engineering (3rd edition): The Institution of Mining and Metallurgy, London, p.358 |
| [10] | International Society for Rock Mechanics, ISRM. (1981). Rock characterization, testing and monitoring. In: Brown, E.T. (edition) ISRM suggested methods. Pergamon Press, Oxford, UK, p. 211. |
| [11] | Kliche, C. A. (1999). Rock Slope Stability: Society for Mining, Metallurgy, and Exploration, Colorado, USA, p. 253 |
| [12] | Pettifer, G.S. and Fookes, P.G. (1994). A revision of the graphical method for assessing the excavatability of rock: Quarterly Journal of Engineering Geology 27, pp. 145–164. |
| [13] | Rocscience Ltd. (1999). DPS 5.0 software for graphical and statistical analysis of orientation based geological data. Toronto, Ontario, Retrieved on 23th July, 2011 from www.rocscience.com. |
| [14] | Rocscience Ltd. (2002). ROCLAB software for calculating Hoek – Brown Rock mass Strength. Toronto, Ontario, Retrieved on 16th July, 2011 from www.rocscience.com |
| [15] | Wyllie, D.C. and Mah, C.W. (2005). Rock Slope Engineering: civil and mining (4th Edition): Spon Press, Taylor and Francis Group, London and New York, p. 431 |
| [16] | Xu, S., Grasso, P. and Mahtab, A. (1990). Use of Schmidt Hammer for estimating mechanical properties of weak rock: Proc. 6th International IAEG Congress, vol. 1. Balkema, Rotterdam, pp. 511 –519. |
APA Style
Saliu Muyideen Alade, Shehu Shaib Abdulazeez. (2014). Kinematic Assessment of Rock Slope Stability at Obajana and Ewekoro Quarries. Earth Sciences, 3(2), 34-41. https://doi.org/10.11648/j.earth.20140302.11
ACS Style
Saliu Muyideen Alade; Shehu Shaib Abdulazeez. Kinematic Assessment of Rock Slope Stability at Obajana and Ewekoro Quarries. Earth Sci. 2014, 3(2), 34-41. doi: 10.11648/j.earth.20140302.11
AMA Style
Saliu Muyideen Alade, Shehu Shaib Abdulazeez. Kinematic Assessment of Rock Slope Stability at Obajana and Ewekoro Quarries. Earth Sci. 2014;3(2):34-41. doi: 10.11648/j.earth.20140302.11
Share This Article
Twitter
Linked In
Facebook
Copy
Download@article{10.11648/j.earth.20140302.11,
author = {Saliu Muyideen Alade and Shehu Shaib Abdulazeez},
title = {Kinematic Assessment of Rock Slope Stability at Obajana and Ewekoro Quarries},
journal = {Earth Sciences},
volume = {3},
number = {2},
pages = {34-41},
doi = {10.11648/j.earth.20140302.11},
url = {https://doi.org/10.11648/j.earth.20140302.11},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20140302.11},
abstract = {The research work assessed the stability of rock slopes for optimum exploitation of limestone deposits at Obajana in Kogi State and Ewekoro in Ogun state. Geological mapping was carried out to measure the orientations of discontinuities. The orientation data obtained were plotted on stereonets to determine pole concentration and major joint sets using Dips 5.0 software from Rocscience. Two joint sets were identified in Obajana with orientations of 720/0890 and 880/2210 while three joint sets with orientations of 610/0480, 160/2800 and 900/1400 were identified in Ewekoro quarry face. The Dips software was further used to perform kinematic analyses for toppling, planar and wedge failures for each of the faces investigated. The friction angles for the kinematic analyses were obtained using Roclab 1.0 software (Rocscience, 2002). The results of the analyses show that toppling failure cannot occur in Obajana while planar and wedge failures may occur. The three failure modes (toppling, planar and wedge) were identified in Ewekoro.},
year = {2014}
}
TY - JOUR T1 - Kinematic Assessment of Rock Slope Stability at Obajana and Ewekoro Quarries AU - Saliu Muyideen Alade AU - Shehu Shaib Abdulazeez Y1 - 2014/04/10 PY - 2014 N1 - https://doi.org/10.11648/j.earth.20140302.11 DO - 10.11648/j.earth.20140302.11 T2 - Earth Sciences JF - Earth Sciences JO - Earth Sciences SP - 34 EP - 41 PB - Science Publishing Group SN - 2328-5982 UR - https://doi.org/10.11648/j.earth.20140302.11 AB - The research work assessed the stability of rock slopes for optimum exploitation of limestone deposits at Obajana in Kogi State and Ewekoro in Ogun state. Geological mapping was carried out to measure the orientations of discontinuities. The orientation data obtained were plotted on stereonets to determine pole concentration and major joint sets using Dips 5.0 software from Rocscience. Two joint sets were identified in Obajana with orientations of 720/0890 and 880/2210 while three joint sets with orientations of 610/0480, 160/2800 and 900/1400 were identified in Ewekoro quarry face. The Dips software was further used to perform kinematic analyses for toppling, planar and wedge failures for each of the faces investigated. The friction angles for the kinematic analyses were obtained using Roclab 1.0 software (Rocscience, 2002). The results of the analyses show that toppling failure cannot occur in Obajana while planar and wedge failures may occur. The three failure modes (toppling, planar and wedge) were identified in Ewekoro. VL - 3 IS - 2 ER -
Information
Email: