EFFECT OF CUTTING PICKS AND CUTTING PERFORMANCE ON UNIAXIAL COMPRESSIVE STRENGTH

Abstract

Sharp picks become blunt due to wear in time and require replacement. Although it is known that the pick blunting affects adversely the rock cuttability, no study exists to show the relationships between the degree of pick wear and the cutting specific energy obtained by standard cutting tests. In this study, standard cutting tests were carried out on different rock types, with picks having varying degrees of blunting and the relationships between the uniaxial compressive strength parameter were established.

Keywords

• Wear flat,uniaxial compressive strength,cutting picks

KESİCİ UÇLAR VE KESME PERFORMANSININ TEK EKSENLİ BASMA DAYANIMINA ETKİSİ

Abstract

Keskin uçlar aşınmaya bağlı olarak zamanla körleşmekte ve değiştirilmeleri gerekmektedir. Kesici uçlardaki körleşmenin kayaçların kesilebilirliğini olumsuz etkilediği bilinmekle birlikte, körleşme derecesi ile standart kesme deneyleri sonucu elde edilen kesme özgül enerjisi arasındaki ilişki üzerine bir çalışma henüz bulunmamaktadır. Bu çalışmada, değişik körleşme derecelerindeki kesici uçlar kullanılarak değişik kayaçlar üzerinde standart kesme deneyleri yapılmış ve tek eksenli basma dayanımı parametresi ile aralarındaki ilişkiler saptanmıştır.

Keywords

• Aşınma yüzeyi genişliği,tek eksenli basma dayanımı,kesici uçlar

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