Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

Numerical Assessment of Seepage Control Effects of Underground Powerhouse

Authors
Huakang Zheng, Chao Hu, Qin Shang
Corresponding Author
Huakang Zheng
Available Online April 2017.
DOI
https://doi.org/10.2991/iceesd-17.2017.32How to use a DOI?
Keywords
underground powerhouse; seepage control; drainage hole array; SVA method; numerical modeling; Yagen Hydropower Station
Abstract
For performance assessment and optimization design of the seepage control system in the Yagen underground powerhouse, a numerical method combining a substructure technique, the variational inequality formulation of Signorini's type and an adaptive penalized Heaviside function (short for SVA method) was adopted. Numerical results of seepage flow behavior in the underground powerhouse area of the Yagen Hydropower Station demonstrate that: the seepage control effects of the layout are very outstanding, and the designed scheme is generally proper and effective; the upper part of the drainage system has little effects in controlling leakage from reservoir, and hence the spacing of the drainage hole arrays at higher elevations can be properly enlarged; the auxiliary drainage hole arrays play an important role in reducing leakage amounts into the underground caverns and pore water pressure in the surrounding rocks, so they are essential for the long-term safe operation of the underground powerhouse.
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Proceedings
2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
Part of series
Advances in Engineering Research
Publication Date
April 2017
ISBN
978-94-6252-328-9
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-17.2017.32How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Huakang Zheng
AU  - Chao Hu
AU  - Qin Shang
PY  - 2017/04
DA  - 2017/04
TI  - Numerical Assessment of Seepage Control Effects of Underground Powerhouse
BT  - 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-17.2017.32
DO  - https://doi.org/10.2991/iceesd-17.2017.32
ID  - Zheng2017/04
ER  -