SU1437473A1 - Deep-water passage between ponds and method of closing same - Google Patents

Abstract

This invention relates to the field of hydraulic engineering. The purpose of the invention is to save money, increase reliability and expand the functionality of the shutter by ensuring its operation after closing the junction as a hydro-tight jumper of constant performance. Deep inter-tissue transition includes an elastic shell 3 shutter, filled with a hardening substance 4. As hardened, its substances 4 use a concrete solution. The transition also includes the shutter chamber 6, the location of which is aligned with the location of the waterproof plug of the constant recharge. The cross-sectional area of the part of the conduit located on the side of the upper pool from the stopper chamber 6 is equal to or greater than the area of the inlet to the shut-off chamber 6. Chamber 6 has the shape of a truncated cone, the larger base of which faces the upstream. The closure of the interbore transition is carried out by filling the cavity of the elastic shell with a hardening substance. 4. Install this shell into the transition before the substance 4 is cured in the cavity of the shell 3. The overlap of the transition is carried out with water pressure. 2 sec. and 1 h. the item of f-ly, I ill.

Description

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The invention relates to hydraulic engineering, in particular to temporary deep interfacial transitions, which are designed to pass water during the construction of waterworks and are subsequently sealed with concrete bridges of constant performance.

The aim of the invention is to save money, increase reliability and expand the functionality of the gate by ensuring its operation after closing the junction as a permanently made watertight jumper.

The drawing shows a section of the transition.

The method is carried out as follows.

At a safe distance from the inlet 1 of the transition into the water 2 of the upper reach, the elastic sheath 3 of the shutter is lowered and immediately before the transition is closed, a liquid-like solidifying substance 4, preferably a lightweight concrete solution, is supplied to the shell 3. A shutter containing elastic sheath 3 and a liquid-like hardening substance 4 is pulled by mechanical means (not shown) to the inlet 1 of the junction, after which the shutter is drawn into the narrowed stopper chamber 6 by the flow of water and closes the junction the hardening substance 4 in the shell 3 is pressed and the shutter is tightly pressed against the walls of the shutter chamber 6.

The lighter the hardening substance 4, for example, a concrete solution (for example, cellular concrete with a bulk weight of about 1.2 g / cm), the easier it is to tighten the gate to the inlet 1 of the junction.

The deep inter-ridge junction includes an elastic sheath 3 of the gate filled with a hardening substance and the shutter chamber 6. The shutter chamber 6 has the shape of a truncated cone, the larger base of which faces the upstream and mates with the inlet conduit 5, and the smaller base of the cone faces the downstream and mates with a discharge conduit 7 with the area, the cross-section of the supply conduit 5 is equal to or greater than the area of the larger base of the cone, and the diameter of the larger base of the cone is equal to or greater e diameter shutter.

After solidification of substance 4 (concrete solution), the shutter turns into a waterproof plug of a permanent execution with the location of the jumper in the shutter chamber 6. Thus, the temporary shutter is combined with a permanent barrier of jumper. Water outlet 7 water level 8

set depending on the water level in the downstream of the hydroelectric complex.

With further increase of water in the upper reach to level 9, the jumper, having the form of a shutter chamber 6 (frustoconical shape) and separated from the walls of chamber 6 by a shell 3, under the action of increasing water pressure from the upstream side, moves within the limits of the shutter chamber 6 towards the lower

0 pool and tightly pressed against the walls of the stopper chamber 6. In this case, the stability of the jumper is restored and the watertightness is constantly ensured by the contact of the jumper with the walls of the shutter chamber 6, which is under

5 by the action of increasing water pressure on the upstream side, increases its cross section.

Fortifying cementation 10 around the sealing chamber 6 by means of depth

 the cementation 11 and the plate 12 are associated with the screen 13 of the earth dam 14 (the dam is shown by a dotted line in the drawing), which is erected ahead of the rise of the water level in the upstream. Aeration pipe 15 is eliminated by the device in her sample 5 ki 16.

The transition can be included in the operation by disassembling the jumper by an explosion. The presence of a thick (usually several centimeters) meters and an elastic shell 3 separating the heat of the bridge from the walls of the sealing chamber 6 allows disassembling the bridge without damaging the facing of the sealing chamber 6.

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Claims (1)

1. A deep inter-bump junction, comprising a conduit connecting the upper and lower pools, a variable cross-section shut-off chamber with an inlet on the side of the upstream and an outlet on the downstream side, a temporary interlock made of an elastic shell in the form of a filled sealed sphere, the diameter of which with a larger diameter of the outlet from the shutter chamber of the opening, and a permanently waterproofed jumper, characterized in that, in order to save money, increase reliability and extend the functionality of the shutter 0 by ensuring its operation after closing the junction as a permanently made waterproof junction, the cavity of the elastic sheath of the gate is filled with a hardening substance, the location of the sealing chamber is aligned with the position of the waterproof junction of the continuous junction, from dat1437473 34 the correct chamber, equal to or greater than the flat shell of the shutter, fills the liquid in the opening of the inlet to the shutter chamber with a shaped hardening substance, and the mouth 2. The way to close the deep inter-pour the shutter into the shutter chamber, to the bypass transition, in which the hardening of a substance in the shell cavity is filled, cavity elastic sheath shutter and mouth-3. The method according to claim 2, wherein The gate is poured into the shutter chamber by the fact that the cavity of the elastic shell, after engaging it in the transition, is filled with light concrete mortars, which are characterized by the fact that the cavity is elasom.