Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines

Date

1991-09-19

Author

MÜFTÜOĞLU, YADİKAR VASFİ
PAŞAMEHMETOĞLU, AHMET GÜNHAN
Karpuz, Celal

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This paper is based on a nation wide research project carried out with the aim of investigating diggability, drillability and blastability of overburden strata in many producing surface coal mines in Tuerkiye. It reports data on blasting practice derived from various case studies. Correlation of powder factors used for overburden preparation with physical properties of many different types of rock masses were investigated. The correlations observed between powder factor and uniaxial compressive strength, tensile strength, density and P-wave velocity are very satisfactory. The use of Rock Quality Index derived from monitoring of blasthole drill performance for estimating powder factor has been found to be very promising tool for planning and execution of blasting operations in surface coal mines.

Subject Keywords

Engineering, Civil, Environmental sciences, Geology, Geosciences

URI

https://hdl.handle.net/11511/54564

Collections

Department of Mining Engineering, Conference / Seminar

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Citation Formats

Y. V. MÜFTÜOĞLU, A. G. PAŞAMEHMETOĞLU, and C. Karpuz, “Correlation of powder factor with physical rock properties and rotary drill performance in Turkish surface coal mines,” 1991, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/54564.