The Meso Analysis on the Damage of the Crossover Jointed Rock Mass under the Uniaxial Compression

DOI

10.2991/aeece-15.2015.114How to use a DOI?

Keywords

rock mechanics; crossover jointed rock; uniaxial compression; numerical simulation

Abstract

The rock structure is extremely complex, it is difficult to reflect the mechanical properties and the relevant failure mechanisms truly under loads whatever by the theoretical analysis or the laboratory test. In order to analyze the damage characteristics of the crossover jointed rock mass from the microscopic point, the discrete method PFC2D was used to simulate the damage mechanism in the assured jointed rock numerically under Axial compression. The results show that when the angle of the main joint is consistent with the direction of the load, the varying angle between the minor joint and the main joint has rarely influence on the stress-strain curve of the rock mass, the stress when the first fine crack comes up and the peak; when the angle between the minor joint and the main joint is not changing, the peak value gradually reduces as the direction angle between the main joint and the load varying from 0º to 90º; when the peak comes up, the direction angle between the main joint and the load is 45º or 90º, the varying angle between the minor joint and the main joint has rarely influence on the development of the number of new fine cracks, while the angle between the main crack and the load is 0º, the impact on the development of the number of new fine cracks is obvious.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Bing Sun
AU  - Haifeng Zhang
AU  - Qiuyang Zhang
AU  - Sheng Zeng
PY  - 2015/09
DA  - 2015/09
TI  - The Meso Analysis on the Damage of the Crossover Jointed Rock Mass under the Uniaxial Compression
BT  - Proceedings of the International Conference on Advances in Energy, Environment and Chemical Engineering
PB  - Atlantis Press
SP  - 573
EP  - 577
SN  - 2352-5401
UR  - https://doi.org/10.2991/aeece-15.2015.114
DO  - 10.2991/aeece-15.2015.114
ID  - Sun2015/09
ER  -