SU1219709A1 - Through-going shore-protecting spur - Google Patents

Description

The invention relates to hydraulic engineering construction, namely, to nanosupplying and kaltiruyuschie structures of active action - to coastal spurs and semi-ponds, and can be used to protect the banks of rivers from erosion, straightening channels and restoring blurred areas of the coast.

The aim of the invention is to increase efficiency.

FIG. 1 shows a through-shore spur, plan view; in fig. 2 - the same, cross section; in fig. 3 shows section A-A in FIG. one.

The through-shore spur consists of gobies 1, executed in the form of a thin-walled shell 2, forming semi-cylinders in the direction of the longitudinal spur.

The gobies 1 are mounted on supports made in the form of solid walls 3 in the transverse spur direction, and form a free space between the lower semi-cylindrical surface of the bull 1 and the bottom of the bed 4. The bikes 1 are arranged in rows in chess order, with the walls 3 bulls 1 adjacent rows are located on the same line with the overlapping walls of the previous row of three walls of the next 3 and are connected in the transverse direction with each other by means of hinged links 5.

With such an execution of bulls 1 and their location in the plan, a system of open trays 6 and closed galleries 7 is formed. The gobies 1, mounted on supports, form in plan a row with an inclination of a spur ridge away from shore 8.

With the passage of channel-forming and flood waters, the river stream 9, approaching the river site built by the spur, is divided into three parts, one part 10 of the stream goes around the spur and deviates towards the channel - the bottom part of the stream 11, which is pumped through open trays 6 and closed galleries 7 and under the influence of transverse circulation and helical motion are divided into bottom jets 12 and surface jets 13. The bottom jets 12 are toward the protected shore 8, and surface jets 13 are toward

0

five

0

five

0

0

channel 4. The sediments fall into the zone of slow flow, lose speed and, sorted out according to hydra size, settle in the inter-spur space, creating a longitudinal sand-gravel group, which, over time, merges with the shore 8. The third The surface layer of the stream 14 floods the head sections of the bumps 1 and squeezes out towards the channel 5. The open trays 6 left between the food rows of bulls 1 increase the side roughness of the structure, which dampens the energy of the flow and the longitudinal flow rates. As the bottom of the channel 4 is washed out, walls 3 are lowered into erosion 15. Articulated connections 5 ensure the integrity of the structure, the length and direction of the channels.

The chess arrangement of bulls 1 and the presence of supports in the form of solid walls 3, located in the transverse spur direction, provides for the creation of well-directed channels, with the help of which bottom jets saturated with sediments are directed toward the protected shore, and more intensive silting of the bottom of the bed behind the spur, increasing the protection area coast.

Performing bikes 1 in the form of a thin-walled semi-cylindrical shell 2 contributes to reducing the hydrodynamic pressure of the flow on them, reducing the harmful effects of whirlpools on the pressure side, detaching whirlpools and turbulence from the drain side when the water overflows through the structure. In addition, such a form helps to reduce the flow resistance, constraining the living cross section of the flow, i.e., increases the throughput of the structure. At the same time, the semi-cylindrical shape of the shells j itself is more economical in terms of material consumption.

The slope of the ridge towards the river contributes to the gradual inclusion in the work of the structure with nepeniree during the passage of channel-forming and flood waters. At the same time, due to the inclined ridge, the constraint of the channel and the depth of local erosion are reduced, and the capacity of the structure is increased.

 w /////

L

15

Fi.2.

f // V // /// J /

3 j

Editor P. Cossey

1240/39

Circulation 641Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-Zb, Raushsk nab. 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

Compiled by L. Schelokova

Tehred I. VeresKorrektor G. Reshetnik

Claims (1)

A THROUGH WATERPROOF SPUR, containing bulls mounted on supports with the crest inclined towards the channel and forming free space between the lower surface of the bull and the channel bottom, while the supports of neighboring bulls are connected by articulated connections, characterized in that, in order to increase work efficiency , the gobies are made in the form of a thin-walled shell forming half-cylinders in a longitudinal spur direction, and are arranged in rows in a staggered pattern, the supports of the gobies are made in the form of solid walls installed in the transverse direction m spur direction, and steers the wall adjacent rows are aligned. Figure 1