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

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

1 Citation (Scopus)


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 languageEnglish
Title of host publicationGeoCongress 2012: State of the Art and Practice in Geotechnical Engineering
Subtitle of host publicationMarch 25-29, 2012; Oakland, California, USA
EditorsRoman D. Hryciw, Adda Athanasopoulos-Zekkos, Nazli Yesiller
Place of PublicationReston VA USA
PublisherAmerican Society of Civil Engineers
Number of pages10
Edition225 GSP
ISBN (Print)9780784412121
Publication statusPublished - 2012
EventGeoCongress 2012: State of the Art and Practice in Geotechnical Engineering - Oakland, United States of America
Duration: 25 Mar 201229 Mar 2012 (front matter)

Publication series

NameGeotechnical Special Publications
ISSN (Print)0895-0563


ConferenceGeoCongress 2012
CountryUnited States of America
OtherThe Geo-Institute of the American Society of Civil Engineers has a rich history of
publishing papers from annual Geo-Congresses and Specialty Conferences. Since
1986, these Proceedings have been published in volumes termed “Geotechnical
Special Publications”. This volume is GSP No. 225, the Proceedings of GeoCongress
2012 “State of the Art and Practice in Geotechnical Engineering”, held March 25 to
29, 2012 in Oakland, California.
Internet address


  • FOS
  • Rock mass
  • Scale effect
  • Slope stability
  • Wardha Valley

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