SU1684423A1 - Backwater construction for open channels - Google Patents

Abstract

The invention relates to hydraulic engineering and can be used in devices for blocking open watercourses during the withdrawal of water from them. The circuit of the invention is the simplification of installation and dismantling in the conditions of the high banks of the watercourse. The structure contains the foundations 1, located on the banks of the watercourse 2, a flat partitioning element 3, installed by means of a hinge unit 4 with an inclination in the direction of the lower reach. Element 3 in the upper part has brackets through which the cable 9 is passed, fixed at one end on one side of the waterway, the other end is transferred through block 8 and attached to the counterweight weight 5 placed in the well 6. Blocks 8, cable 9 and element brackets 3, with its elevated position closed, are located in the alignment of the rear faces of the abutments 1. The barrier element 3 is made with a window 17 in the upper part. At low flow rates of the watercourse 2, the weight-counterweight 5, the tension of the cable 9, maintains the partitioning element 3 in the raised position, maintaining the level required for water intake in the upstream. Excess water through the window 17 is discharged to the downstream. In a flood, the pressure on the barrier element 3 increases and, overcoming the weight of the counterbalance weight 5, turns on the hinge assembly 4 and lies at the bottom of the watercourse 2. Flood water passes over the element 3. 5 Cp. f-ly, 6 ill. fe

Description

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The invention relates to hydraulic engineering and can be used in structures for blocking open watercourses during the withdrawal of water from them.

The purpose of the invention is to simplify the installation and dismantling in the conditions of the high banks of the watercourse.

FIG. 1 shows a retaining structure, top view; in fig. 2 shows section A-A in FIG. one; in fig. 3 shows a section BB in FIG. 2 in the closed position of the barrier element; in fig. 4 - the same in the open position of the blocking element; in fig. 5-section BB-Ia FIG. 3 (on average). FIG. 6 is the same at the rack.

The structure contains the foundations 1, located on the banks of the watercourse 2, a flat transverse partitioning element 3 installed by the hinge assembly 4 between the foundations 1 with an inclination towards the lower reach in the closed position and a counterweight weight 5 placed in the well 6 on one of the banks of the watercourse 2. On the banks of the watercourse 2 in the alignment of the rear faces of the abutments 1 are installed mast 7 with blocks 8, through which a cable 9 is thrown, one end of which is attached to the mast 7, located on one of the banks of the watercourse 2, and the other is attached to the counterweight weight 5. The cable 9 passes through the brackets 10 attached to the upper part of the blocking element 3 and located in the closed position of the blocking element 3 also in the alignment of the rear edges of the abutments 1. The hinge unit 4 is made in the form of a pipe 11 with a notch 12 along the generatrix installed at the bottom of the watercourse 2 and plate 13, made with a width equal to the internal diameter of the pipe 11 and installed inside it. The partitioning element 3 is made in the form of extreme and medium racks 14 and 15, attached to the plate 13 and having grooves in which shandors 16 are fixed, forming a spillway window 17 in the upper part of the element 3. Shandors 16 located below the window 17 are made with vertical flushing holes 18 connecting the upper reach with the cavity of the pipe 11. Element 3 is equipped with a water-gauge set within the window 17 (not shown). On the side of the upper reach, the element 3 has a seal 19 attached by a clamping bar 20 to the bottom of the watercourse 2. The weight counterweight 5 is made of separate elements for controlling the force in the cable 9.

The installation of the barrier element 3 is carried out by inserting the cable 9 into the brackets 10, storing it in the blocks 8 and attaching its ends to the mast 7 and the counterweight weight 5. Then the element 3 is moved along the cable 9 into the waterway section 2 and lowered it, plant 13 into the notch 12 of the pipe 11. The installation is configured by

selection of the weight of the weight of the counterweight 5, under the action of which the element 3 occupies the upper closed position. At low flow rates of water in watercourse 2, element 3 creates the necessary water retention for

fence it from the upstream. Excess water is discharged into the downstream of the watercourse 2 through the window 17. On the flood, the pressure on element 3 increases and, overcoming the weight of the counterbalance weight 5, turning in the hinge 4, lies at the bottom of the watercourse 2. The leash freely passes over element 3. When reducing the flow of water in the watercourse 2 cargo-counterweight 5 returns element 3 to its original position. By channel

Claims (6)

1. Substructure for open watercourses, including foundations located on the banks of the watercourse, flat transverse partitioning element with spillway window, installed by means of a hinge joint between the foundations with a slope in the direction of the downstream in the closed position, and the weight counterweight, connected by a cable with a barrier element, characterized in that, in order to simplify installation and disassembly in the conditions of the high banks of the watercourse, it is provided with brackets attached to the upper part of the partitioning element, and a block through which a cable is thrown fixed on one of the banks of the watercourse, and the cable is passed through the brackets of the blocking element and secured with the free end on the other side of the water course, with the attachment point of the free end of the cable, the block and the brackets of the blocking element in its closed position are located in the alignment of the rear edges of the usgoi. 2. The arrangement according to claim 1, of which is the hinge assembly is made in the form of a pipe with a cut-out along a generator installed at the bottom of the water course and a plate made with a width equal to the internal diameter of the pipe and installed inside it. 3. The construction of paragraphs. 1 and 2, that is, with the fact that the blocking element is made in the form of racks with grooves and chandeliers installed in the grooves. 4. The construction according to claim 3, characterized in that the overflow window is formed between pillars at the top of the blocking element. 5. The construction according to claim 4, of which is equipped with a water-gauge scale installed within the overflow window. 6. The construction of paragraphs. 3–5, that is, with the fact that the Shandors are made e with the fact that the blocking element 5 is vertical floor washing. 7 8  7/7 777 / VV /// 6-6  . . -; -. -. : &. -.- %  &: but , ° L. b; . . -. BUT.: - . - & o. .about. U ////// U /// // ////////////// U ////// // 7 ///////// /// / // ///  p Phyaz A-A / VV /// four Xf /, fig.i re not . -. : &. -.- % but  ° L. - - & o. .about. / 7 ///////// /// /// /// .about. y / o others-:%. -.- at V ////////////////// // U / // //////; / 6 7 / 777U ///////// 7 1684423 b - 6 at f  //// 7 FIG. five 1B V Fig 6