SU6256A1 - Razorchata plate type Poare - Google Patents

Description

The Poare dam is one of the convenient dismountable water-dyke dams, thanks to | simplicity of design, ease of maneuvering and low cost.

The disadvantages of the dam need | include: 1) the possibility of frostbite j farms in cold winters, mainly I, the freezing of bearings, resulting in difficulties in maneuvering farms during the cold season; 2) the slowness of maneuvering, for example, a dam in Libnitz with a sub- pore of 3.56 m and a span of 65 m requires hours to clean all 260 W, when two cranes are working (Ing. N. Lnisimov I. “Dams part II, p. 75); 3) water leakage through the gaps between the stitches and 4) danger of damage by freezing.

The present invention aims to eliminate these drawbacks by positioning the upstream bearings under water and opening the w, itov in the downstream direction.

In the schematic drawing of FIG. 1 shows a vertical section through the Poare dam; FIG. 2 is a view of the dam from the downstream; 3 is a view of the farms of the dam laid on the flybet; FIG. 4 is a vertical section of the proposed dam; FIG. 5 is the same, a view from the downstream; FIG. b-vertical section of the dam with racks of the modified Puzyrevsky farm; FIG. 7 is the same, the view from the downstream; FIG. 8 is a longitudinal section of a dam with farms laid on a flybet; FIG. 9 is the same, top view, and FIG. 10-view shields from above.

In the proposed dismountable dam of the Poaret type, the shields, in order to eliminate frosting, are not located on the upper pressure side, as usual (Fig. 1 and 2), but on the downstream side, due to which ooora bearings are always under water, and the shields rest on the grassroots; ki farms (Fig. 4 and 5). Thus, the bearings will be protected from freezing, and water-retained; body sh, ity, fortified - on | loops x can be opened to the downstream and laid along with the trusses on the flybet.

IDs can be supported on trusses of trusses, which are inverted trusses of the system | N.P. Puzyrevsky and having strut-on, not compression-strut struts, whereby low-bearing truss bearings may be in the upstream or in; bottom (Fig. 6); a service bridge is placed above the downstream (Fig. 6 and 7). Such an outline of the farm and the location of the bridge makes it possible to stack them one after another: (Fig. 8 and 9) and, consequently, to reduce the height of the flybet threshold, i necessary to cover the trusses. With the usual outline of the trusses, they are laid on each other. friend; where does each farm cover | several (2-3) subsequent 1 (fig. 3) .I

When the shields are located on the lower side of the trusses, they can be given the device shown in FIG. 10. Shields rest on outer shelves and are pressed against them by riding water. The width of the shields i is slightly less than the distance between the j Poor ’s farms, so that the shields can be moved along the dam. If the shield (fig. 10) is moved slightly

along the dam to the left, it will descend from the right support and turn on hinges under the pressure of water along the stream. Maneuvering the dam can be unusually accelerated. To close the dam, it will be necessary to lift the hinged shields from the hinges and lower it again in the designated grooves.

When dismantling the dam, you can not remove the shields from the hinges, but put them on the flybet of the dam together with the farms. In addition to frost protection and reducing the height of the threshold, the proposed Poare type dam can be used on rivers with fast leads, i.e. on mountain rivers, and on flat rivers, at hydro installations, by the Poare dam of the proposed type, the number of working days can be increased, since it is possible to work before the onset of ice drift when the dam needs to be opened.

The subject of the patent.

Ripped Poare type dam with shield gates, characterized by the fact that the upper bearings of the rotary trusses are located in the upper reach, and the water retaining boards rest on the lower stands of the Poare trusses (Fig. 3-5) or on the stands of trusses representing reversed system H P. Puzyrevsky (Fig. 6-9), with the lower bearings of the trusses can be located in the upper or lower tail.

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