Numerical Assessment of Seepage Control Effects of Underground Powerhouse
Huakang Zheng, Chao Hu, Qin Shang
Available Online April 2017.
- https://doi.org/10.2991/iceesd-17.2017.32How to use a DOI?
- underground powerhouse; seepage control; drainage hole array; SVA method; numerical modeling; Yagen Hydropower Station
- 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.
- 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 SP - 171 EP - 176 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 -