1Department of Mining & Nuclear Engineering, Missouri University of Science & Technology, Rolla, MO, USA
2Department of Geosciences & Geological & Petroleum Engineering, Missouri University of Science & Technology, Rolla, MO, USA
*Corresponding author e-mail: srd5zb@mst.edu
Online published on 27 April, 2016.
The shear behavior of a single rock joint in limestone specimens, under a constant normal load (CNL), was analyzed in this study. Test specimens with different asperity roughness were prepared and tested. Goodman's model of a rock joint's shear behavior, under CNL, was modified to render a better representation of the data obtained. The model's alicability was validated. The proposed model showed better correlation with experimental data. It also, requires fewer variables. The steps to calculate all the necessary variables for the model are discussed.
Limestone rock joints, constant normal load, direct shear test
