Optimisation of orientation for large underground caverns

DOI

10.2991/rare-16.2016.45How to use a DOI?

Keywords

hydrofracturing; wedge analysis; stereo plotting; isotropic stress theory

Abstract

This paper highlights the role of stress measurements and wedge analysis for optimisation of orientation for underground desilting chambers and power house complex of hydropower development in the Himalayas. In-situ stress measurement tests were conducted using hydraulic fracturing technique in vertical and horizontal holes. Wedge analysis of the existing joint sets was also done to study the potential wedge failure and to optimize the orientation of underground caverns. The orientations of joint sets at outcrop were different than inside the cavern due to folding and faulting in rock mass. The final decision on orientation of large underground caverns was optimised based on in-situ stress measurements and analysis of existing joint sets inside the cavern

Copyright

© 2016, 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  - Dev Hari
AU  - Singh Rajbal
AU  - S.K. Sati
PY  - 2016/11
DA  - 2016/11
TI  - Optimisation of orientation for large underground caverns
BT  - Proceedings of the conference on Recent Advances in Rock Engineering (RARE 2016)
PB  - Atlantis Press
SP  - 285
EP  - 290
SN  - 2352-5401
UR  - https://doi.org/10.2991/rare-16.2016.45
DO  - 10.2991/rare-16.2016.45
ID  - Hari2016/11
ER  -