SU1330237A1 - Method of constructing hydraulic complex with concrete dam - Google Patents

Abstract

The invention relates to the field of hydraulic engineering. The purpose of the invention is to reduce the construction period of the hydropower plant by increasing the front of construction work. The method of building a waterworks with a concrete dam includes the erection of a low-water bridges 1 of a high-pressure separate device 2, the dumping of bridges from the catchment and station parts of the dam, and the passage of the flood through the constrained bed. High-pressure separator 2 is erected with longitudinal culvert openings to allow low flow rates. Then a pit of the station part of the dam is formed, building high-water bridges 3 between the high-pressure separate station 2 and the coast 3. In the low-flow period, low-water bridges are built, protecting the water section of the dam, while passing through the openings in the separate section 2. After that, construction works are carried out the whole front of the dam. Due to the above sequence of operations, the possible scope of the construction of the hydropower plant is expanded. 2 Il. “(L., 2 OcSoe ff / e} e / yeff Fe / ha, 2 SAE OE О IsD 00 1 I) 4 Lv. Cpuf.l

Description

The invention relates to hydraulic engineering construction and can be used in the construction of hydroelectric complexes with betemped dams on rivers with stable long periods of low water.

The purpose of the invention is to reduce the construction period of a hydropower plant by increasing the front of construction work.

FIG. Figure 1 shows the plan of dam lintels for erecting the station part of the dam; in fig. 2 - plan of the dam lintels of the station part of the dam and of the water-like part of the dam

In the autumn period of the first year of construction, with a drop in the water flow in the river, a low-water bridge 1 was erected and, after pumping water from the excavation pit, a separate bay 2 is concreted in which a longitudinal hole is arranged to allow low flow. At the same time, a high-water crossing point 3 is dumped in a dry trench. In parallel with the construction of separate station 2 and bridge 3, the station part of the dam 4 and the building and the HPP 5 begin to be erected. The flood is passed through the left-bank part of the bed.

In the autumn of the second year of construction, the construction of low-water bridges 6 is carried out, and then work is carried out on the water discharge structures 7. When passing through

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the flood the floodplain of the discharge part is flooded and the flood expenses are passed through the unfinished discharge structures 7. After passing the flood, construction works are carried out in parallel along the station part of the dam and the outlet, etc., until the construction works are completed.

Claims (1)

Invention Formula The method of building a waterworks with a concrete dam, including the construction of high-pressure separate stations under the protection of low-water bridges, dumping bridges of the spillway and station parts of the dam, passing flood through a constrained bed, characterized by the fact that erected with longitudinal culvert openings for the passage of low-flow rates; they form the pit of the station part of the dam, constructing between the high-pressure section The high-water bridges are built with a solid abutment and shore, and in the low-flow period they construct low-water bridges protecting the spillway of the dam, while npotiycKaH costs through openings in the separate abutment, and then carry out construction work along the entire front of the dam. Oc ffe Hb / f} epes oh oh oh  And f3L fi & .2