SU905353A1 - Shore protection structure - Google Patents

Description

one

The invention relates to hydraulic construction and can be used to protect banks from erosion.

Breakwaters are known to be a through barrier made of bottomless reinforced concrete boxes placed on top of each other 1.

The disadvantages of this design are the need to mount in the vertical and horizontal sections, as well as the possibility of the occurrence of reflected waves and erosion at the foot of the structure.

A construction for protection of the shores, made in the form of a hollow trihedral prism with penetrability on the face x 2, is known.

The disadvantage of this construction is the low efficiency of damping of the waves and erosion of the soil at the bottom.

The purpose of the invention is to improve the performance of the facility.

The goal is achieved by the fact that the penetrations are made on the half of the pressure and rear faces with displacement, the penetration of the pressure face is 5055%, and the rear edge is kQ-kS ° half of the surface area of the face.

In addition, the penetrations are formed by alternating beams of various lengths, mounted on transverse supports of a triangular shape with corners with a base of 30– + 5 ° on the pressure side and on the shore.

FIG. 1 shows the layout of the plates, a general view in plan; in fig. 2 block without axons in axonometric

IS projection; in fig. 3 - unit assembly; in fig. - view A in FIG. 3

The proposed structure is a barrier located parallel to the shore and formed from

Claims (2)

20 separate blocks laid on the bottom. The blocks are a team of reinforced concrete elements in the form of a rectangular three-sided prize of 390 we. On three transverse reinforced concrete elements 1 of a triangular shape, reinforced concrete beams 3 are fastened with the help of gear notches 2, and each subsequent beam along the length of pasbia half of the previous beam 3, ensuring the presence of cross-sections on the edges. The dimensions of the beams are selected in such a way that the throughness on the side of the pressure face is 50-55, and the back side is half the surface area of the face. The transverse elements 1 are made in the form of a non-sided triangle with angles at the base of 30-45 ° (from the pressure side) and "5-60 ° (from the coast), Elements 1 are fixed to the plate 5 with protrusions 6 that provide the blocks among themselves .. The construction works as follows. When the incident wave interacts with the front face, the flow is divided into separate jets with a width equal to half the block length along the front, and the flow is divided into separate layers by depth, which helps to dampen the wave energy. The impact of the jets inside the structure and the division of the wave flow at the outlet also contributes to the damping of the wave energy. Enhancement of the damping effect leads to a decrease in speed both at the outer and at the inner edge, which promotes sediment deposition in front of the wall and prevents sediment from being removed from the zone between the coast and the structure. The invention reduces the height of the wave behind the structure by 150, which significantly reduces coastal erosion. Claim 1. Arrangement to protect the coast, made in the form of a hollow triangular prism with edges on the edges, characterized in that, in order to increase efficiency, the penetrability is made on the half of the pressure and rear edges with offset, and the penetrability of the pressure face 50 55%, and the back half of the surface area of the face. 2. A construction according to claim 1, characterized in that the penetrations are formed by alternating beams of various lengths fixed on transverse supports of a triangular shape with corners at the base from the pressure side and kS-6Q from the shore. Sources of information taken into account in the examination 1. US patent number 2755631, cl. 1952 2. The patent of France No. 2393110, cl. Е 02 В 3/00, 1975. Fi2.2. View Rig.