Experience in operating earth dams of the NIVA cascade of the Kola Regional Power administration constructed in 1930-1960
This article discusses Russian experiences in monitoring earth-filled dams of the Niva region. These are low and medium head facilities in operation from 30 to 60 years. As shown by the experiences of long-term operation of earth structures in this area and on embankments being constructed by the method of dumping soil into water, it is necessary to impose more stringent requirements with respect to determining the steepness of these slopes to increase their stability, as is done when the structures are constructed dry. To organize successful monitoring of seepage processes in the investigated structures having substantial anisotropy of the soil, special recommendations of the disposition of piezometers under such specific conditions should be worked out. Recommendations on the disposition of piezometers under conditions of a noticeable effect of the groundwater regime of the surrounding territory on the seepage regime of the hydro development should be worked out accordingly. Since the calculations made in the work, as a result of which instability of many slopes was detected, are not always confirmed by practice, it is advisable to correct the method of such calculations with consideration of the characteristics of the formation of the seepage flow in the downstream shoulder of dams with pronounced anisotropy of the soil.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 379327
- Journal Information:
- Hydrotechnical Construction, Vol. 29, Issue 2; Other Information: PBD: Aug 1995; TN: Translated from Gidrotekhnicheskoe Stroitel`stvo; No. 2, 37-41(Feb 1995)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Seepage regime of the hydraulic fill dam of the Mingechaur hydropower development
Mine waste embankments need same engineering attention as earthfill dam