Indian Geotechnical Journal

, Volume 48, Issue 4, pp 615–625 | Cite as

In-Situ Stress Measurement in Raniganj Coalfield and Its Applications in Mine Stability Analysis

  • Niraj KumarEmail author
  • Ajoy Kumar Singh
  • Ranjan Kumar
  • Amalendu Sinha
Original Paper


The in situ stresses have significant effects on the stability of openings, support requirements, parting stability, pillar strength, etc. In order to analyze the stability of underground structures, the measurement of magnitude and direction of horizontal stress is necessary in addition to knowing other geomining parameters and rock properties. In this direction, this paper presents a systematic determination of in situ stresses in three mines of the southern Raniganj coalfield of India, using single sleeve fracturing technique. Based on the analysis of field test results, the gradients of major, minor and average horizontal stresses are established for the southern Raniganj coalfield. The determined in situ stress values are used in numerical modeling for stability evaluation of known case histories of parting between contiguous seams and pillars of this coalfield. The numerical modeling results analyzed in this paper validated that the in situ stresses determined in the Raniganj coalfield are acceptable for the stability analysis of coal pillars, parting and underground roadways.


In-situ stress measurement Sleeve fracturing technique Horizontal stress Parting stability analysis Numerical modeling 



The authors would like to thank the Director, CSIR-CIMFR, for permitting to publish this paper. The authors are immensely thankful to our former colleagues, Dr. A. K. Sinha, Mr. A. K. Ghosh, Dr. Mohan Prasad, Mr. D. G. Rao and Mr. Pramod Kumar who provided insight and expertise during the execution of this research works.


This work was supported by Coal Science and Technology grant of the Ministry of Coal, Government of India.


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Copyright information

© Indian Geotechnical Society 2018

Authors and Affiliations

  • Niraj Kumar
    • 1
  • Ajoy Kumar Singh
    • 1
  • Ranjan Kumar
    • 1
  • Amalendu Sinha
    • 1
  1. 1.CSIR-Central Institute of Mining and Fuel ResearchDhanbadIndia

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