SU1110865A1 - Water discharge structure - Google Patents

Abstract

I. WATER DISCHARGE, which includes an inlet part, a supply conduit and a water well, coupled with a supply conduit and having a bottom, side walls and a threshold, a matching well with a diversion channel, characterized in that in order to reduce the amount of construction work the spillway due to the reduction of its length under the conditions of the complex terrain, the initial part of the well is curved in plan and has longitudinal steps that decrease from the concave side wall to the convex one. 2. Water discharge according to claim 1, characterized in that, in order to reduce cavitation erosion of the linear portion of the well, a vertical step is made at the end of the curvilinear portion in the concave wall of the well, and the ends of the longitudinal steps have vertical steps. 3.Water discharge on PP. 1 and 2, characterized in that the longitudinal steps of the well are widened and the side walls are divergent. 4.Water discharge on PP. 1, 2 and 3, characterized in that the well threshold is made steeped. 00 about: ate

Description

The invention relates to hydraulic engineering and can be used to discharge water from the upstream of the hydraulic system to the lower one. A spillway containing an inlet section, a supply conduit and a flow energy quencher in the downstream is known. A spillway including an inlet section, a supply conduit and a water well connected to the supply conduit, containing the bottom, side walls and threshold, matching a diverging well q diverting channel 2. The disadvantage of these devices is that under difficult terrain conditions the supply conduit has a considerable length to ensure the exit of the end part of the supply conduit with the well along the axis of the diverter weakly. This is due to the fact that the supply water conduit has to be curved with a large radius of curvature. The purpose of the invention is to reduce the amount of work on the construction of the spillway by reducing its length in the conditions of difficult terrain. This is achieved by the fact that the initial section of the well is curved in plan and has longitudinal steps that go down from the concave side wall to the convex one. And at the end of the curvilinear section in the concave wall of the well there is a vertical step, and the ends of the longitudinal steps have vertical steps. The longitudinal steps of the well are expanding and the side walls are divergent. The threshold of the well is made stepwise. FIG. 1 shows the spillway, plan; in fig. 2 shows section A-A in FIG. one; in fig. 3, view B in FIG. 2; in fig. 4 shows a section B-B in FIG. 3; in fig. 5 is a section of YYD in FIG. 3; in fig. 6 is a section d-d in FIG. 3; in fig. 7 shows section EE of FIG. 3; in fig. 8- water well, axonometrics. The spillway contains an inlet part 1, a supply conduit 2 and a watering well 3, mating with a supplying water conduit 2 and diverting channel 4. The watering well 3 includes a bottom 5, side walls 6 and a threshold 7 made stepwise. The initial section 8 of the well 3 is curved in plan and has longitudinal steps 9 decreasing from the concave wall 6 to convex. At the end of the curvilinear section 8 in the concave wall 6 there is a vertical step 10. The ends of the longitudinal steps 9 can also have vertical steps 10. Longitudinal steps 9 can be made expanding in plan, and the side walls 6 can be divergent. Spillway works as follows. The flow of water at high speeds coming out of the supply conduit 2, for example a tunnel, in the curvilinear section 8 of the well 3 turns to the required angle and is directed to the straight section of the well 3, where its energy is extinguished. Unlike a turn, this device allows the supply conduit to be traced linearly and rotate the flow in the well in a wide range of discharged water flow and speeds due to the forced distribution of flow along the width of the well 3 specified by the longitudinal steps 9. The curved section 8 can be performed with different number of stages 9 depending on the width of the spillway and discharged water flow. Behind the steps 10, an air supply may be provided. Such an embodiment of the spillway allows a significant reduction in the amount of work on the construction of the supply conduit by reducing its length under the conditions of difficult terrain.

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Claims (4)

1. WATER DISCHARGE, including the inlet, the inlet conduit and the water well, interfaced with the inlet conduit and having a bottom, side walls and a threshold, mating well with the outlet channel, characterized in that, in order to reduce the volume of work on the construction of the spillway by reducing it lengths in difficult terrain conditions, the initial section of the well is curved in plan and has longitudinal steps, decreasing from the concave side wall to the convex. 2. Spillway by π. 1, characterized in that, in order to reduce cavitation erosion of the rectilinear section of the well, a vertical ledge is made at the end of the curved section in the concave wall of the well, and the ends of the longitudinal steps have vertical ledges. 3. Spillway according to paragraphs. 1 and 2, characterized in that the longitudinal steps of the well are made expanding, and the side walls are diverging. < _β 4. Spillway in paragraphs. 1, 2 and 3, characterized in that the threshold of the well is made stepwise. SU, „, 1110865 Fig!