Numerical simulation of failure process of rock mass with a joint

DOI

10.2991/icimm-15.2015.26How to use a DOI?

Keywords

Natural joint; rock mass; failure process; numerical simulation

Abstract

In this paper failure process of rock mass with a natural joint is presented by numerical simulation based on RFPA2D. numerical simulation shown that failure of rock mass with a natural joint begin first in joint for rock mass, with the increase of the vertical load, joint is closed, along the joint plane within the rock mass near the damage area, rock mass became damaged gradually near joint, the damage area expands unceasingly, then cave is formed. That provided location and avenue for movement and accumulation of underground water .That is of significance and valuable to research strength for jointed rock mass and to research mechanism of propagation and coalescence and evolvement of joints in rock mass and to research mechanism of mine water and gas outburst in underground mining and to research catastrophe and bifurcation of non Darcy flow system in post failure of rock mass. Numerical simulation shown that when angle between the joint plane and horizontal plane is 300 , and when the lateral pressure is 1 Mpa, compressive strength of rock mass with a natural joint is compressive strength of 25.9% without joint.

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  - Fengshan Han
AU  - Xinli Wu
PY  - 2015/07
DA  - 2015/07
TI  - Numerical simulation of failure process of rock mass with a joint
BT  - Proceedings of the 5th International Conference on Information Engineering for Mechanics and Materials
PB  - Atlantis Press
SP  - 133
EP  - 137
SN  - 2352-5401
UR  - https://doi.org/10.2991/icimm-15.2015.26
DO  - 10.2991/icimm-15.2015.26
ID  - Han2015/07
ER  -