Improvement of Overall Equipment Performance of Underground Mining Machines- A Case Study

Improvement of Overall Equipment Performance of Underground Mining Machines- A Case Study

BalaRaju JakkulaGovindaraj Mandela Murthy S. Chivukula 

Department of Mining Engineering, NITK Surathkal, Karnataka 575 025, India

Corresponding Author Email:
26 September 2017
| |
23 April 2018
| | Citation



Production and productivity of any industry mainly depends on effective utilization of men and machinery. Underground mine production for the last few decades in India is not in satisfactory level, due to less mechanization. The maximum amount is expended for introducing the large scale mechanized equipment. Hence, mechanization in loading system has made advantageous towards production. In spite of this Load Haul Dumper (LHD) is one and used as loading and hauling machine for intermediate of operation. During the operation of the equipment, possible major breakdowns are occurred in some aspects. Therefore, these lead to reduce the percentage availability and utilization of the machines. As a result of this, it is very essential to analyze the performance of LHD machines, to reduce the cost during the operations. The higher availability of machine gives an optimum utilization, which increase the production and productivity of these principal intensive items. Keeping this in view, this paper focuses on improvement of overall equipment performance (OEP) by calculating the percentage availability and capacity utilization of LHDs in underground mines. Further an attempt is also emphasized to identify the contributing factors of performance improvement.


productivity, overall equipment performance, availability, utilization, efficiency

1. Introduction
2. Inluencing Factors of Productivity
3. Case Study
4. Results and Discussion
5. Recommendations
6. Conclusion

[1] Arputharaj (2015). Studies on availability and utilisation of mining equipment-an overview. Journal Impact Factor 6.3: 14-21.

[2] Arputharaj, Michael M. (2015). Effect of equipment utilisation on Economics of mining project- a case study. Journal Impact Factor 6.3: 07-13.

[3] Dhillon BS. (2008). Mining equipment reliability, maintainability and safety. Springer series in reliability engineering. 1614-7839-Verlag London Limited, London.

[4] Mishra DP, MamteshSugla, PrasunSingha. (2013). Productivity improvement in underground coal mines-a case study. Journal of Sustainable Mining 12: 48–53. 

[5] Fan. (2015). Reliability analysis and failure prediction of construction equipment with time series models. Journal of Advanced Management Science 3.3.

[6] Kumar U, Klefsjö B, Granholm S. (1989). Reliability investigation for a fleet of LHD machines in a Swedish mine. Journal of Reliability Engineering and System Safety 26(4): 341-361.

[7] Sarkar SB., Mukherjee SK. (2004). Reliability modeling and performance analyses of an LHD system in mining. The Journal of The South African Institute of Mining and Metallurgy.

[8] Sankha S, Dey UK. (2015). A critical study on availability and capacity utilization of side discharge loaders for performance assessment. IJRET: International Journal of Research in Engineering and Technology 04(07).

[9] Peng SH, Nick V. (2014). Maintainability analysis of underground mining equipment using genetic algorithms: case studies with an LHD vehicle. Hindawi Publishing Corporation Journal of Mining. Article ID 528414: 10.

[10] Singh BP, Tiwari. (1984). Application of reliability and availability to underground mine transport. Journal of Mines, Metals, & Fuels.