Numerical simulation of stress relieving and analysis of influencing factors on geostress measurement

DOI

10.2991/mining-14.2014.37How to use a DOI?

Keywords

Stress relief Method; Drilling aperture ratio; geostress measurement; Numerical simulation

Abstract

At present, over coring method by using hollow inclusion strain cells are applied widely for geostress measurement. But there are some errors in measurement accuracy. In order to improve the measurement precision and reliability of stress relief method, the paper analyzed the influence of drilling aperture ratio on stress. Studies shows that drill holes will cause the loss of displacement and change the aperture ratio of the drilling will cause variation of losing displacement and correction coefficient K1. The equation of losing displacement and drilling ratio is

Copyright

© 2014, 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  - Tongbin Zhao
AU  - Minglu Zhang
AU  - Zhanhai Li
AU  - Ze Zhang
PY  - 2014/10
DA  - 2014/10
TI  - Numerical simulation of stress relieving and analysis of influencing factors on geostress measurement
BT  - Proceedings of the Taishan Academic Forum – Project on Mine Disaster Prevention and Control
PB  - Atlantis Press
SP  - 241
EP  - 247
SN  - 2352-5401
UR  - https://doi.org/10.2991/mining-14.2014.37
DO  - 10.2991/mining-14.2014.37
ID  - Zhao2014/10
ER  -