SU1425268A1 - Enclosing structure - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to hydraulic engineering. The purpose of the invention is to reduce the wave loads on the vertical wall and reduce material consumption. The vertical wall 1 is covered from the side of the sea / draft with the formation of a notch, the bottom 2 of which is located below the top of the wall and the ridge 3 of the outline. In the body of the outline below the bottom 2 of the notch, close to the wall 1, a fine-porous horizontal screen 4 is arranged, for example, in the form of a two-way black-sand control filter reinforced with worn tires. The wave pressure under the screen is transmitted through the fluid from three sides to the wall almost instantaneously at the speed of sound in water, and the pressure moves above the screen at the speed of a gravitational wave. As a result, overpressure from the crest of the wave, directed to the left, and to the lower part - pressure from the depression, directed to the right. As a result, the total forces and moments acting on the wall are reduced. 1 il. but (/)

Description

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one

The invention relates to marine hydraulic engineering and can be used in the reconstruction and construction of port protective structures.

The purpose of the invention is to reduce the loads on the vertical wall when s: “using the material consumption of the outline,

The drawing shows the proposed construction when approaching the ridge in ETNA from the sea side, a transverse section (a calm sea level is depicted by a dotted line).

The structure consists of a vertical wall 1 and sketches in front of it, in: spudding it with a bottom 2 at the hem and a ridge 3, rastelovennogo poristeer Below the level of the bottom 2 there is a horizontal screen of fine-grained material of the 311 material, tightly adjacent to the wall under the screen is devoid of vertical expansion

The screen can be made of sand-and-sand layers in combination with a tetic filtering mat made of concrete slabs, asphalt mats, but the most ration screen is a two-sided counter (vertical composition: stone ben - sand - rubble - stone sprinkled over several layers This will allow the screen to be high, replacing some of the materials with waste materials, with the active pressure of the soil, the search for the leaching of counter-filter materials

Claims (1)

Invention Formula and transmits to the wall the pressure of a suitable wave almost instantaneously (from the 25 pores of the protective layer of the outline. With a sound velocity in the water) "Above the screen 4 after the pressure moves horizontally with the speed of a gravitational wave, i.e. hundreds of times slower than B, as a result of approaching the top of the wall of the wave crest over the marine part of screen 4, there is a depression of the wave and pressure from it, less hydrostatic, is instantly transferred to the lower part. walls. The pressure from the ridge is greater than the hydrostatic pressure. Since the hydrostatic pressurizing structure, the vertical wall and stretched in front of it from the side of the stone and artificial cast, having a trapezoidal shape with a recess in front of the wall, are such that, with a decrease in wave loads, the ticking wall and the reduction of capacity will be in the outline below the bottom A horizontal screen is made of laziness against the wall. The screen is made of a softer material, in the form of two-sided gravel-sand controllable worn pokrysh On both sides of the wall is balanced, then in this case (shown in the drawing) the pressure force on the upper part of the wall is directed to the left, to the lower to the right, and the total equal is equal to the difference (and not the sum, as in the well-known construction) of the named forces. The same applies to the defaults. In addition, within the thickness of the screen, hydrodynamic pressures are transferred to the wall, much less than those above and below the screen. The screen can be made of macadam and sand layers in combination with synthetic filtering materials made of concrete slabs, asphalt-bitumen mats, but the most rational screen is a two-sided counter filter (vertical composition: stone - crushed - sand - crushed stone - stone ), poured in several layers, laid flat and fastened with worn pokrysh. This will allow the screen to develop in height, replacing some of the deficient materials with waste, reduce the active pressure of the soil, and eliminate the leaching of the counter filter materials through pores of the protective layer outline. Invention Formula pores of the protective layer outline. pores of the protective layer outline. A barrier structure, including a vertical wall and a sea of stone and artificial blocks in front of it from the sea side, having a trapezoidal profile with a recess in front of the wall, characterized in that in order to reduce the wave loads on the vertical wall and reduce the material intensity, in the draft below the bottom of the recess A horizontal, adjacent to the wall screen of finely grained material is arranged, in the form of a two-way black-sandy sand filter, reinforced with worn pokshzhami.