A COMPARATIVE STUDY FOR STRENGTH CLASSIFICATION
The importance of providing a system for strength classification is emphasized by the diversity of testing methods, number of representative samples needed, and testing equipment required. In the present work three Egyptian types of rocks: Limestone, Sandstone and Granite with different specimen sizes are used to carry out a comparative study concerning the determination of the compressive strength using uniaxial compression, point-load, and Schmidt hammer techniques. Testing results are statistically analyzed and correlated with some physical properties like porosity, density and sound velocity. * Associate Professor, Mining Department, Faculty of Engineering, Cario University TÜRKİYE X I I I . M A D E N C İ L İ K K O N G R E S İ , 1 9 9 3
Evaluating the effect of rock parameters on surface mine blasting by finite element analysis
ABSTRACT The blasting process in surface mines involves extremely complex interactions. Utilizing Finite Element (FE) analysis, the affect of rock mass properties and discontinuity data can be fairly idealized and assessed. The purpose of this paper is to present the application of finite element methods to fragmentation due to blasting in surface mining operations. As a result, the prediction and extent of blasting will help the engineers engaged in surface mining and construction operations to use explosives efficiently.
The influence from specific charge, geometric scale and physical properties of homogenous rock on fragmentation
The influence from specific charge, geometric scale and physical properties of homogenous rock on fragmentation