Građevinar, Vol. 76 No. 05., 2024.
Preliminary communication
https://doi.org/10.14256/JCE.3222.2021
Mechanical behavior of rock mass under simulated materials shear testing
Xing-Chao Lin
Gui-Na Zhu
Xing-Song Sun
Abstract
In this paper, the influence of joint distribution on the deformation and strength characteristics of rock mass is studied through direct shear tests of five typical distribution types of simulated materials including two joints. The spatial distribution pattern of joints determines the deformation and failure process and the final shape of rock mass, which is mainly manifested as lap failure between joints. By comparing the 25 stress-strain curves obtained from the test, the stress-strain curves are classified into five types. With the increase of the normal stress, the composite shear type gradually transforms to the shear type, and the shear type gradually transforms to the yield type. The joint distribution pattern has a great influence on the shear strength and the maximum difference is 64 %.
Keywords
jointed rock mass; joint distribution; shear test; mechanical behaviour; failure process
Hrčak ID:
319966
URI
Publication date:
8.7.2024.
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