SU791827A1 - Mooring wall with wave-breaking device - Google Patents

Description

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I; i) brea bienie refers to the sea and river port hydraulic engineering construction and can be used for building structures in the water areas that are not sufficiently protected from waves.

The known G1Richal1 is on a wall with a waveguide device, including a chamber inside which two waveguide screens are mounted, from which the front one is made inclined 1).

The disadvantage of this quay wall with a waveguide device is the degree of reflection of waves from the quay wall.

The purpose of the invention is to reduce the degree of reflection of waves from the quay wall.

This goal is achieved by the fact that in the quay wall with a wave-suppressing device, including a chamber, inside which two wave-absorbing screens are mounted, from which the front one is inclined, the chamber is provided with an upper wall, and the wall is open and the bottom of the chamber is sequenced. Several transverse diaphragms with openings are attached, one of which is installed in the bridge2

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flat, fixed on the longitudinal walls of the chamber, while their lower and upper edges are separated from the calm water level by half the height of the calculated BO. || , the front screen is located between the vertical planes, passing through the cross section of the diaphragm, and the rear screen is installed vertically between the chamber wall and the transverse diaphragm.

10 In addition, in order to increase the dither effect, the front screen is tilted at an angle of 20-30 ° to the horizon in the direction of propagation of the incident wave.

The drawing shows a mooring wall with a wave-suppressing device, a longitudinal section ..

Chamber 1 is formed by an upper wall 2, a bottom 3, a rear wall 4 and side walls 5. From the approach of the wave, chamber 1 is open.

Claims (2)

20 The front screen 6 may have a flat or curved surface and may be inclined at an angle of 20-30 ° to the horizon in the direction of the incident wave, with its lower edge; t; i is deep under the calm water level and positioned at the entrance to chamber 1, and the upper - raise it above the water level. The upper and lower boundaries of the screen 6 are at least half the height of the calculated wave from the calm water level. The rear waveguide screen 7 is made in the form of a vertical plate, the upper limit of which is elevated above the calm water level, and the lower one is buried under water. At the same time, the elevation of the upper and deeper lower edges of the screen 7 with respect to a calm water level is somewhat larger than that of screen 6. The dimensions of screens 6 and 7, their position relative to a calm water level, the distance between them, the upper wall 2, the bottom 3 and the rear wall 4 are defined Parameters of the calculated wave. The rear energy well 8 is formed by a bottom 3, a rear wall 4 and side walls 5, measure 1, as well as a transverse diaphragm 9 with holes 10 in the lower part. The transverse diaphragm 9 is fixed on the bottom of the chamber 1 and is made in the form of a plate, the upper mark of which is buried below the level of water rest for a distance slightly larger than the lower mark of the screen 7. The holes 10 are designed to skip the bottom currents of water. The energy-extinguishing well 11 is formed by the bottom 3, side walls 5 and transverse diaphragms 9 and 12. The transverse diaphragm 12 is a vertical plate installed at the entrance to the chamber 1. Between the upper edge of the diaphragm 12 and the lower edge of the extinguishing screen 6 there is a gap, and in the lower part of the diaphragm 12 - the holes 13 intended to release water from the chamber 1 into the water area., Element 1 1 of the construction of the quenching device of the mooring wall are made of reinforced concrete, however they can be made of other materials, for example from metal. The oncoming wave crest collapses on the plane of the wave of e 6, and the wave flow acquires the character of translational motion, and disrupting from the upper rear edge of the screen 6, the flow forms vortices under the screen 6 and further interacts with the screen 7. At the same time, the flow is partially reflected from EC -. wound 7 and partially overflowing its top. The reflected part of the flow passes under the lower edge of the screen 6 and deviates downward, wasting energy to the turbulization of the deep water layers. Penetrating behind the screen 6, a part of the flow interacts with the screen 7 and consumes its energy for the formation of vortices in the volume of water located in the cavity formed by the rear wall 4 and the screen 7. The energy of the formed vortices is transferred to the underlying masses of water in energy-extinguishing wells and is spent on overcoming the inertia of these masses of water and their turbulization. Additional energy losses of moving masses of water occur during the overflow of water from well 8 to well 11 and further from well 1 to the water area of the port. The masses of water entering the chamber 1 at the approach of the crest of the wave and the loss of a significant part of their energy flow out of the chamber at a low speed at the moment of approaching the berth of the next trough of the wave and the part 10, filling it, reducing the wave amplitude. The counterflow of water flowing out of the chamber disrupts the structure of the next wave incident on the mooring wall, which leads to a decrease in the intensity of the shock effects on the wall elements. The proposed wave-suppressing device allows to reduce the degree of the reflected wave by 80-90% compared to the wave reflected from the impermeable vertical wall, and by 30-40 ° / o compared to the prototype. The invention of the invention will significantly improve the wave regime in the port area and, therefore, provide more favorable conditions for the operation of ships and other vessels. Claim 1. A mooring wall with a wave-suppressing device, comprising a chamber, inside which two wave-suppressing screens are mounted, of which the front B1 1 is inclined, characterized in that, in order to reduce the degree of reflection of waves from the mooring wall, the camera is provided with; ) the upper wall and the front wall are open and at the bottom of the chamber after the body several transverse diaphragms with openings are fixed, one of which is mounted in the front wall, the screens are solid, fixed on the longitudinal Tenkai chamber, with their upper and lower edges spaced from snokoyryugo water level to half the calculated wave heights, wherein the front screen is situated between the vertical planes extending through the aperture transverse alignments, and the rear mounted vertically between the chamber wall and the transverse aperture. 2. The wall according to claim 1, characterized in that, in order to increase the quenching effect, the front screen is inclined by an angle of 20-30 ° to the horizon in the direction of propagation of the incident wave. Sources of information taken into account during the examination 1. French Patent No. 2176288, cl. Е 02 В 3/00, published. 1973.