Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India

Verma Dhananjai; Deepankar Choudhury; P. G. Ranjith; Trilok N Singh

doi:10.1061/9780784412121.060

Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India

Verma Dhananjai, Deepankar Choudhury, P. G. Ranjith, Trilok N Singh

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

1 Citation (Scopus)

Abstract

Stability of slopes is one of the basic problems in open cast mines. Economical and safe open pit slopes involve maximization of the angle of inclination of the slope with proper stability. Studies on stability require a complete knowledge of the local geology. Stability of rock slopes depends on the scale of the slope, type of rock, orientation and density of the discontinuities etc. With an increase in size of rock mass, the chances of presence of joints and fractures increases and hence the strength of the rock material reduces due to the inclusion of more discontinuities in the rock mass. In the present study, a mine slope at Wardha Valley Coalfield in India has been numerically analyzed to take into account the effect of number of joint sets on the stability. The results show a reduction in factor of safety with an increase in joint sets.

Original language	English
Title of host publication	GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering
Subtitle of host publication	March 25-29, 2012; Oakland, California, USA
Editors	Roman D. Hryciw, Adda Athanasopoulos-Zekkos, Nazli Yesiller
Place of Publication	Reston VA USA
Publisher	American Society of Civil Engineers
Pages	576-585
Number of pages	10
Edition	225 GSP
ISBN (Print)	9780784412121
DOIs	https://doi.org/10.1061/9780784412121.060
Publication status	Published - 2012
Event	GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering - Oakland, United States of America Duration: 25 Mar 2012 → 29 Mar 2012 https://ascelibrary.org/doi/pdf/10.1061/9780784412121.fm (front matter) https://ascelibrary.org/doi/book/10.1061/9780784412121

Publication series

Name	Geotechnical Special Publications
Number	225
ISSN (Print)	0895-0563

Conference

Conference	GeoCongress 2012
Country/Territory	United States of America
City	Oakland
Period	25/03/12 → 29/03/12
Other	GEOCONGRESS 2012 STATE OF THE ART AND PRACTICE IN GEOTECHNICAL ENGINEERING March 25-29, 2012 Oakland, California
Internet address	https://ascelibrary.org/doi/pdf/10.1061/9780784412121.fm (front matter) https://ascelibrary.org/doi/book/10.1061/9780784412121

Keywords

FOS
Rock mass
Scale effect
Slope stability
Wardha Valley

Access to Document

10.1061/9780784412121.060Licence: Unspecified

Cite this

Dhananjai, V., Choudhury, D., Ranjith, P. G., & Singh, T. N. (2012). Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India. In R. D. Hryciw, A. Athanasopoulos-Zekkos, & N. Yesiller (Eds.), GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering: March 25-29, 2012; Oakland, California, USA (225 GSP ed., pp. 576-585). (Geotechnical Special Publications; No. 225). American Society of Civil Engineers. https://doi.org/10.1061/9780784412121.060

Dhananjai, Verma ; Choudhury, Deepankar ; Ranjith, P. G. et al. / Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India. GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering: March 25-29, 2012; Oakland, California, USA. editor / Roman D. Hryciw ; Adda Athanasopoulos-Zekkos ; Nazli Yesiller. 225 GSP. ed. Reston VA USA : American Society of Civil Engineers, 2012. pp. 576-585 (Geotechnical Special Publications; 225).

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title = "Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India",

abstract = "Stability of slopes is one of the basic problems in open cast mines. Economical and safe open pit slopes involve maximization of the angle of inclination of the slope with proper stability. Studies on stability require a complete knowledge of the local geology. Stability of rock slopes depends on the scale of the slope, type of rock, orientation and density of the discontinuities etc. With an increase in size of rock mass, the chances of presence of joints and fractures increases and hence the strength of the rock material reduces due to the inclusion of more discontinuities in the rock mass. In the present study, a mine slope at Wardha Valley Coalfield in India has been numerically analyzed to take into account the effect of number of joint sets on the stability. The results show a reduction in factor of safety with an increase in joint sets.",

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Dhananjai, V, Choudhury, D, Ranjith, PG & Singh, TN 2012, Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India. in RD Hryciw, A Athanasopoulos-Zekkos & N Yesiller (eds), GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering: March 25-29, 2012; Oakland, California, USA. 225 GSP edn, Geotechnical Special Publications, no. 225, American Society of Civil Engineers, Reston VA USA, pp. 576-585, GeoCongress 2012, Oakland, California, United States of America, 25/03/12. https://doi.org/10.1061/9780784412121.060

Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India. / Dhananjai, Verma; Choudhury, Deepankar; Ranjith, P. G. et al.
GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering: March 25-29, 2012; Oakland, California, USA. ed. / Roman D. Hryciw; Adda Athanasopoulos-Zekkos; Nazli Yesiller. 225 GSP. ed. Reston VA USA: American Society of Civil Engineers, 2012. p. 576-585 (Geotechnical Special Publications; No. 225).

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research › peer-review

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T1 - Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India

AU - Dhananjai, Verma

AU - Choudhury, Deepankar

AU - Ranjith, P. G.

AU - Singh, Trilok N

PY - 2012

Y1 - 2012

N2 - Stability of slopes is one of the basic problems in open cast mines. Economical and safe open pit slopes involve maximization of the angle of inclination of the slope with proper stability. Studies on stability require a complete knowledge of the local geology. Stability of rock slopes depends on the scale of the slope, type of rock, orientation and density of the discontinuities etc. With an increase in size of rock mass, the chances of presence of joints and fractures increases and hence the strength of the rock material reduces due to the inclusion of more discontinuities in the rock mass. In the present study, a mine slope at Wardha Valley Coalfield in India has been numerically analyzed to take into account the effect of number of joint sets on the stability. The results show a reduction in factor of safety with an increase in joint sets.

AB - Stability of slopes is one of the basic problems in open cast mines. Economical and safe open pit slopes involve maximization of the angle of inclination of the slope with proper stability. Studies on stability require a complete knowledge of the local geology. Stability of rock slopes depends on the scale of the slope, type of rock, orientation and density of the discontinuities etc. With an increase in size of rock mass, the chances of presence of joints and fractures increases and hence the strength of the rock material reduces due to the inclusion of more discontinuities in the rock mass. In the present study, a mine slope at Wardha Valley Coalfield in India has been numerically analyzed to take into account the effect of number of joint sets on the stability. The results show a reduction in factor of safety with an increase in joint sets.

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ER -

Dhananjai V, Choudhury D, Ranjith PG, Singh TN. Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India. In Hryciw RD, Athanasopoulos-Zekkos A, Yesiller N, editors, GeoCongress 2012: State of the Art and Practice in Geotechnical Engineering: March 25-29, 2012; Oakland, California, USA. 225 GSP ed. Reston VA USA: American Society of Civil Engineers. 2012. p. 576-585. (Geotechnical Special Publications; 225). doi: 10.1061/9780784412121.060

Scale effect on strength and failure modes of open pit cut slope of Wardha Valley Coalfield in India

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