Prediction of the penetration rate of rotary blast hole drills using a new drillability index

KAHRAMAN, SAİR; Balcı, Cemal; Yazici, S; Bilgin, N

doi:10.1016/s1365-1609(00)00007-1

Prediction of the penetration rate of rotary blast hole drills using a new drillability index

Atıf İçin Kopyala

KAHRAMAN S., Balcı C., Yazici S., Bilgin N.

INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES, cilt.37, sa.5, ss.729-743, 2000 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 37 Sayı: 5
Basım Tarihi: 2000
Doi Numarası: 10.1016/s1365-1609(00)00007-1
Dergi Adı: INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.729-743
Hacettepe Üniversitesi Adresli: Hayır

Özet

Rotary blast hole drills were observed in several formations at different open pit mines and quarries. Rock samples were collected as near as possible to drilling locations and mechanical and physical properties of the total 22 rock samples were determined. Indentation tests were carried out on the block samples from the same formations, A new drillability index for the prediction of the penetration rates of rotary blast hole drills and the mechanical and physical properties of the rock formations was defined from force-indentation curves of indentation tests. A penetration rate model for rotary for blast hole drills was developed using this drillability index. It was seen that the model was valid for the formations having uniaxial compressive strength over 40 MPa and especially for carbonaceous rocks.