| Abstract: | Conclusions The Zagorsk PSS—the first pumped storage stations with a capacity of 1200 MW—was constructed slowly, for a long time.
The main reasons for this were:
| 1. |
Location of the site in an industrially developed district, near Moscow, with the assumption of the rapid formation and use
of available construction facilities did not prove to be correct. Administrative restrictions in welcoming skilled personnel
to the construction project did not foster a build-up of the team. A residential village and construction facilities were
fully needed, as on any construction project.
|
| 3. |
Counting on the use of local borrow pits in the Moscow region was not justified: the inert materials were not suitable for
hydrotechnical concrete of high frost resistance and strength.
|
| 3. |
Inadequate engineering-geologic surveys during planning led to late landslide-control measures and to an increase of the volume
of CAWs.
|
| 4. |
When determining the construction time the climatic conditions in the zone of the construction site were underestimated: the
number of days without precipitation is 175, not more. The main cause of the wrong design construction time was the incorrect
determination of the estimated cost of the CAWs.
|
| 5. |
Construction of a large hydro development, as the Zagorsk PSS, by the work-effort method with the enlistment of a large number
of organizations from different regions of the country did not promote the formation of a stable team at the construction
site.
|
| 6. |
The management of Mosénergo made the right decision: from the examined 10 variants of the next pumped-storage station in the
Central region was selected the variant of constructing the Zagorsk PSS-2 where a team of builders took shape after long years,
where there are a residential village and construction facilities, and solid experience has been acquired. This will make
it possible to shorten the construction time and to reduce the cost of an installed 1 kW of the PSS.
|
Translated from Gidrotekhnicheskoe Stroitel'stvo, No. 10, pp. 13–16, October, 1999. |
