Boguchany HPP - is filling the reservoir

• Boguchany HPP - is filling the reservoir

In early June, I was again on a huge construction site, and the landmark of our country - in the construction of the Boguchany HPP. Compared with the great changes have taken place last summer. The most important thing is that the dam is almost build, we closed spillways temporary bottom and began to fill the reservoir.

Boguchany hydroelectric power plant - hydroelectric power station under construction on the Angara River in the Krasnoyarsk Territory. Located in 367 km downstream from the existing Ust-Ilim hydroelectric station and 444 km from the mouth of the river. Included in the Angara cascade of hydropower plants. Location - city Kodinsk Kezhemskogo District, Krasnoyarsk Territory.

This is probably one of the largest protracted since the Soviet era. Construction of power plant began in 1980, but in the early 90's due to the plight of the economy, accompanied by a decline in energy consumption, the construction of hydropower plants in many respects lost its meaning. The huge building has actually been frozen from 1994 to 2005 due to lack of funds. In 2004, the readiness of hydroelectric facilities was 58%. Since 2006, we launched work on the completion of HPP together JSC "RusHydro" and JSC "RUSAL". Now construction has entered the final stage.

The dam has gained nearly finished look. In the photo - the main hydroelectric facilities: spillways number 1 and number 2, as well as part of the computer room.

The view from the upper pond: there is a reservoir. When it is full to the dam swims wood and other debris. Now comes the installation of the boom to the logs do not accumulate around the spillway. After mounting the fence the forest will catch and pull to shore.

On the construction site, you can find a huge variety of different cranes. I'll talk about below them.

"A full lesoochistki on the basis of scientific prediction of water quality in the reservoir solution of the governmental commission was not considered necessary, lesoochistka carried out on SS (security zone waterworks, sanitary zone settlements, the route of the fairway, lesosplavnoy raid)".

the dam View from the lower pool. On the right is KBGS-450 - the old lattice tower crane. Over time, they become less and less.

"The power plant building is installed vertical hydraulic units 9, a capacity of 333 MW each with radial-axial turbine operating at rated a head of 65, 5 m (maximum - 70 8 m)."

generator rotor. Its weight - a little less than 1000 tonnes.

stator. "Compass" at the center controls the distance from the axis to the wall.

The daily working time.

break.

Installation works.

Now comes the installation of six hydroelectric generators. The remaining three will be collected, it will be completed when the power house.

The first two units of completed construction works, and they are prepared for start-up and commissioning. The rest are in various stages of readiness.

On the ground come a ton of equipment and components.

Local realities.

And this is also the local realities. I understand that the power supplied, without looking, but what turned sense!

Under the generator rotor.

Two spillway and a piece of the machine hall. On that frame, you can see all the rarest cranes building. In addition to the two yellow in the foreground - a KB-515, the regular civilian cranes.

Reservoir. Preparation of his bed and resettlement has been the government of the Krasnoyarsk Territory, and not RusHydro.

"Pressure HPP construction will create a major Boguchanskoye reservoir area 2326 km² (including, in the Krasnoyarsk Territory - 1961 km ², in the Irkutsk region - 365 km²) and a length of 375 km. Shallow water area (with depths of less than 2 m) will be 98 square kilometers or 4, 2% of total area. "

"mark normal water reservoir level is 208, 0 m above sea level, the forced booster level - 209, 5 m, the level of the dead volume -. 207, 0 m full reservoir volume is 58, 2 km³ useful - 2, 3 km³. "

Maximum height of the concrete dam - 96 meters. Traditional frame for those who are afraid of heights.

On the right, on nezabetonirovannoy dam section, is the dismantling of the BC-1000 crane.

To skip unnecessary water consumption during the construction and operation of the Boguchany hydropower plant has two spillway - № 1 and № 2, located within the concrete dam.

Standing bottom spillway consists of holes 10 (two in each section) section 4 6 * 5 m.

The gate of the spillway.

And this is a temporary bottom spillway, located under constant. The cross section of the tunnel -. 14 * 12 meters was blocked in April 2012 (the remaining 4 tunnels were closed earlier). After that the filling of the reservoir. Now he will be cleared of forests, drained and concreted.

fittings on the ceiling was bent flow of water.

Every second through hole extends about 500 cubic meters of water.

Now for navigation through the spillway pass about 3200 cubic meters per second. In the autumn of the gates will be closed (leave only sanitary reset) and then continue to fill the reservoir.

portal crane BC-1000 and cut the dam.

"expected gradual floating part peat from flooded peatland, whose total area is estimated at 96 square kilometers, while possibly with floating peat plots of total area of 13 square kilometers. It is predicted that the gradual floating of peat will continue for 20 years, which will require measures for towing and securing peat islands. "

The opening of the second spillway.

The completion of the last meters of the dam.

BC-1000 on the crest of the dam. Unique modernization of the crane - installation of a wide portal, which is very rare. A total of 2-3 such attempts.

One of the galleries in the dam body. Terrible right hole - mine drainage, which collects the water leaking through the joint sections throughout the height of the dam.

Just adit.

culvert under the dam. Protruding pipes from the floor - drain well. Water is squeezed out of them, and going to the tunnel, where already pumped.

BC-1000 and the dam. On top of it from the lower pool made gobies - road will pass through them.

Spillway.

The infernal force.

"№ 2 spillway surface type, with cancel flow energy in the stilling basin, and the step faces the weir. This design of the spillway is used in domestic practice of hydraulic engineering construction for the first time. "

Bandwidth spillway № 1 during continuous operation is 7060 m³ / s.

1,000 cubic meters per second.

the water Skipping over the second spillway 5 through 10 m wide spans overflow threshold at the initial stage of filling the reservoir -. At around 179 m 0, and during continuous operation - 199 m 0.

The working platform among the spillway.

So much falling water - it is always nice.

I was standing a meter away from this stream, and it is very impressive.

The completion of the power plant building at 7, 8 and 9 hydro units.

KBGS-630. The rarest crane. There have been created about 5 pieces.

BK-1425 - a unique crane 75 tons, the most powerful. We thought they were already nowhere to stay, but then they appeared on the Boguchany HPP. Feature cranes - double tower (two sections go together).

The dam without formwork gets quite normal.

The forest in the territory of the future reservoir owned by the state and the government of the Krasnoyarsk Territory did not want them to do and organize the sale. Although local residents begged to give or sell them to the forest. In the end, it just burned - "do not get you to anybody."