SU1625919A1 - Protective cover of earth slopes of hydraulic engineering structures - Google Patents

Description

one

(21) 4329912/15

(22) 07.21.88

(46) 02.02.91. Bul At 5

(71) Belarusian Polytechnic Institute

(72) E.M. Levkevich and E.I.Samonchik (53) 627.418 (088.8)

(56) USSR author's certificate 907147, cl. Е 02 В 3/12, 1980. f54) OVERALL COATING OF SOIL SPACES OF HYDROTECHNICAL CONSTRUCTIONS

(57) The invention relates to hydraulic construction and can be used to protect high slopes of earth dams and dams from destruction by the action of waves. The purpose of the invention is to increase efficiency and work efficiency. The coating consists of reinforced concrete duo-pitch slabs with elements of roughness in the form of ribs. The ribs are parallel to each other, at an angle of 45 ° to the water's edge and an angle of 90 to each other. Encounter on its way to ZPRMSNTY, the stream quickly loses energy, which leads to a decrease in the height of the overrun in comparison with a skew covered with a smooth coating. 3 il.

The invention relates to hydraulic construction and can be used to protect high slopes of earth dams and dams from destruction by the action of waves.

The purpose of the invention is to increase efficiency and work efficiency.

Figure 1 shows the plan of the coverage area; figure 2 is a section of LA in figure 1; on fig.Z - section bb in fig. one .

The coating consists of reinforced concrete gable plates 1, on inclined surfaces of which roughness elements 2 are located in the form of rectangular cross-section edges with beveled upper corners. The edges of the roughness elements 2 are parallel to each other, at an angle of 45 to the water edge and an angle of 90 ° to each other. The plates are arranged in rows and placed in large-size maps according to well-known schemes: welding issues

reinforcement of adjacent plates or embedded parts and filling the joints with cement mortar. The ruptures 3 formed in this case in the rough elements 2 serve to concentrate the runoff rolling down the slope. The plates are laid on a layer 4 of the preparation of gravel, rubble or synthetic filter material.

When a wave approaches the slope, the surface of which is covered with a coating, its destruction occurs at a critical depth, as a result of which the overrun moves upward along the slope. At the same time, meeting on its way elements 1, the stream quickly loses its energy, which leads to a decrease in the height of the overrun compared to a slope covered with a smooth coating. When the flow moves along the gable plates at the final phase, the water splash receives direction along the fins and moves at an angle to the edge

(L

WITH

FETPING BY ROLLS 1LLD ENERGY

intercostal tone coating. But since the surface of the plate 1 has a greater slope than the surface of the slope, then the height of the overhang in this area of the coating decreases.

Claims (1)

Claims of the invention Protective coating of soil slopes of hydraulic structures, made of reinforced concrete slabs, having on its outer surface J ST S S U g .BUT. n pi sher-tuon.ggm-ti elements in the form of ribs, about m and h i HI in ee with the fact that, in order to increase the efficiency and efficiency of work, formed by inclined plate surfaces, directed perpendicular to the water edge, while the roughness elements are set at an acute angle to the ridge of the plate and are arranged in parallel rows directed from the ridge of the plate to its base. T Phys. 1