SU1740529A1 - Bank-protecting cut-off wall - Google Patents

Abstract

Use: in hydraulic engineering construction and is intended to regulate rivers and protect their banks from erosion. SUMMARY OF THE INVENTION: A bank spur includes barrier plates made with variable permeability and buttresses with grooves formed therein. The plates are installed in the grooves of the buttresses, - and in the root of the spur are made deaf. Subsequent spur plates are made with increasing permeability by increasing the number of through holes. The buttresses are made in the form of a triangular frame, and the plates are installed obliquely from the buttress side facing the flow, and are equipped with teeth placed under each hole and springboards located in their lower parts. 1 zlf-ly, 3 ill. about Ј IE

Description

The invention relates to hydraulic construction, in particular to spurs, and is intended to regulate rivers and protect their banks from erosion.

The purpose of the invention is to increase work efficiency.

FIG. 1 shows the proposed spur, top view; in fig. 2 is a section A-A in FIG. 1, in FIG. 3 - fencing plate.

The spur is made of enclosing oblique plates 1 installed in the slots 2 of the buttresses 3. Holes 4 and the teeth 5 are made in the enclosing inclined plates 1. A springboard 6 is made at the bottom of the slab 1. The buttresses 3 are made of interconnected beams.

The proposed spur works as follows.

The stream, meeting with the spur, is divided into three streams. One stream deviates towards the free part of the channel, forming a longitudinal flow along the spur and flowing around it. The implementation of a curved spur in the plan contributes to its smooth flow around, as the force impact of the running stream on the structure is reduced. The second jet deviates to the bottom, forming a downward current and hitting the tooth 5 under the holes 4, extinguishes part of the energy, proceeds to the springboard 6, is thrown some distance from the sub-. Dorsal spurs, where the incident flow of the field ™ extinguishes the energy of the jet thrown away. The third jet passes through the holes 4 of the fencing plates 1 into the downstream of the structure into the zone with a minor 1

4 O

cl

N3

WITH

speeds where final

Fig1

2

6

fill 2,3

Claims (1)

Claim 1. Coastal spur, including enclosing plates made with variable permeability, and buttresses with grooves made in them, while the plates are installed in grooves 5 of buttresses, characterized in that, in order to increase work efficiency, the plates in the root of the spur are made deaf, and the subsequent ones are made with permeability increasing to the head part by increasing the number of through holes, the buttresses are made in the form of a triangular shape, and the plates are installed obliquely from the counter15 force side facing th to the stream, and are provided with teeth, placed beneath each hole, and jumps, located in the lower parts. 20 2. Shore protection spur according to π. 1, characterized in that the spur is made curved in shape in plan.