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Published: Građevinar 76 (2024) 5
Paper type: Scientific research paper
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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

HOW TO CITE THIS ARTICLE:

Lin, X., Zhu, G., Sun, X.: Mechanical behavior of rock mass under simulated materials shear testing, GRAĐEVINAR, 76 (2024) 5, pp. 399-412, doi: https://doi.org/10.14256/JCE.3222.2021

OR:

Lin, X., Zhu, G., Sun, X. (2024). Mechanical behavior of rock mass under simulated materials shear testing, GRAĐEVINAR, 76 (5), 399-412, doi: https://doi.org/10.14256/JCE.3222.2021

LICENCE:

Creative Commons License
This paper is licensed under a Creative Commons Attribution 4.0 International License.
Authors:
Xing Chao LIN WEB
Xing-Chao Lin
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin
Gui Na ZHU WEB
Gui-Na Zhu
Beijing Glory PKPM Technology Co.,Ltd
Xing Song SUN WEB
Xing-Song Sun
State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China