Strength Characteristics for Limestone and Dolomite Rock Matrix using Tri-Axial System

Author(s):

Miteshkumar B. Patel , L D College of Engineering ; Dr. M.V.Shah, L D College of Engineering

Keywords:

Rock Matrix, Stress–Strain Curves, Tri-Axial Test, Jointed Specimens, Microfine Cement

Abstract:

Propagation of hair cracks, existing fissures into a rock mass is most common process associated in mining and tunneling operation. The propagation of these features cracks or widening joints into a rock mass can be simulated into common approach known as matrix formation into rock mass. This research study is an attempt to overcome this deficiency by postulating both longitudinal and transverse cracks with wide range of degree of orientation, fissures into cylindrical rock specimen through various specified geometrical rock matrix patterns. Limestone and Dolomite which comes under a category of soft to medium hard strength where used for this study using microfine cement as a binder material to obtain strength characteristics and failure mechanisms. Also it is intended to determine modulus of elasticity (secant modulus) for various rock matrix and its comparison with intact rocks specimens. Series of triaxial test and compression test were carried out for both type of rock specimen using automated triaxial conventional testing machine. The results indicate that there is a considerable effect of rock matrix and its orientation both on shear parameters and failure mechanisms as compared to intact rock specimen.

Other Details:

Manuscript Id	:	IJSTEV1I11079
Published in	:	Volume : 1, Issue : 11
Publication Date	:	01/06/2015
Page(s)	:	114-124

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