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Rock breakage by crushing, blasting, and drilling
Abstract The fundamental principles of rock fragmentation by crushing, blasting, and drilling are not well understood; however, empirical observations have provided means for predicting the energy requirements for these processes. Experimental procedures and methods of analysis used in comminution studies are described in this review. Particular emphasis is given to discussions of the role that mechanical properties of rocks play in the rock breakage processes. Estimates of the energy required to reduce rock particle size indicate that only a small portion of the total energy is utilized as surface energy and much of the energy is dissipated as thermal energy. A better understanding of brittle fracture is needed to provide a more valid theoretical basis for comminution studies.
Rock breakage by crushing, blasting, and drilling
Abstract The fundamental principles of rock fragmentation by crushing, blasting, and drilling are not well understood; however, empirical observations have provided means for predicting the energy requirements for these processes. Experimental procedures and methods of analysis used in comminution studies are described in this review. Particular emphasis is given to discussions of the role that mechanical properties of rocks play in the rock breakage processes. Estimates of the energy required to reduce rock particle size indicate that only a small portion of the total energy is utilized as surface energy and much of the energy is dissipated as thermal energy. A better understanding of brittle fracture is needed to provide a more valid theoretical basis for comminution studies.
Rock breakage by crushing, blasting, and drilling
Cheatham, J.B. Jr. (author)
Engineering Geology ; 2 ; 293-314
1967-11-02
22 pages
Article (Journal)
Electronic Resource
English
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