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Assessment of Overburden Dump and Highwall Slope Stability for Jambad Open Cast Coal Mine, West Bengal, India, using in Situ and Laboratory Testing


Affiliations
1 Department of Civil Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India
 

In this study, in situ multichannel analysis of surface waves was performed to characterize the overburden (OB) layers for Jambad open cast coal mine, West Bengal, India. OB dump samples were also collected and laboratory tests were carried out to evaluate the compaction and strength characteristics. Stability anal-yses of the OB dump slope and highwall were carried out using the finite element-based software Optum G2 considering the configurations suggested by the Eastern Coalfield Limited, India. The stability was also assessed for seismic loading conditions considering pseudo-static loading. This study concludes with recommenda-tions for geometric configurations of the OB dump and highwall slope.

Keywords

Coal Mine Overburden, Dump Slope, High-wall, Laboratory Tests, Surface Wave
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  • Assessment of Overburden Dump and Highwall Slope Stability for Jambad Open Cast Coal Mine, West Bengal, India, using in Situ and Laboratory Testing

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Authors

Vishwas N. Khatri
Department of Civil Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India
Lohitkumar Nainegali
Department of Civil Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India
Rajib Sarkar
Department of Civil Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India
Sarat Kumar Das
Department of Civil Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826 004, India

Abstract


In this study, in situ multichannel analysis of surface waves was performed to characterize the overburden (OB) layers for Jambad open cast coal mine, West Bengal, India. OB dump samples were also collected and laboratory tests were carried out to evaluate the compaction and strength characteristics. Stability anal-yses of the OB dump slope and highwall were carried out using the finite element-based software Optum G2 considering the configurations suggested by the Eastern Coalfield Limited, India. The stability was also assessed for seismic loading conditions considering pseudo-static loading. This study concludes with recommenda-tions for geometric configurations of the OB dump and highwall slope.

Keywords


Coal Mine Overburden, Dump Slope, High-wall, Laboratory Tests, Surface Wave

References





DOI: https://doi.org/10.18520/cs%2Fv123%2Fi2%2F184-193