SU1139793A1 - Longitudinal training wall - Google Patents

Abstract

1. LONGITUDINAL RIVER STRETCH DAMBA, including sections, wedged out of shields, installed. vertically in a stream and interconnected with the formation in terms of a broken line, characterized in that, in order to increase the efficiency of the dam by enhanced quenching of the kinetic energy of the stream and simplify its design, section c. The plan has a trapezoidal shape and with smaller bases facing the protected shore with the formation of through channels between them, with the head shield of each section having a height equal to not less than the depth of water in the river, and buried in the bottom of the channel, and two subsequent shields with the formation of a clearance between bottom and bottom edge of the shield. 2. The dam according to claim 1, about tl and tea (L with the fact that the sections are rigidly interconnected by means of horizontal beams and installed on the slabs.

Description

one

The invention relates to river hydraulic structures, namely, longitudinal stream dams, and can be used to protect against erosion and restoration of eroded coastal areas, to prevent railways and cars from crushing the slopes of the land and to wash off the foundations of longitudinal coastal protection structures on rivers. with high flow rates and an unstable channel during channel-forming processes.

A regulatory stringing structure made of rye is known, in which the head part has corridors for the passage of the flow l.

Also known is a longitudinal river dam, including sections, made of shields, mounted vertically in a stream and interconnected to form a broken line 2J in plan.

The well-known dams are characterized by insufficient working efficiency due to the low quenching of the flow energy and the complexity of the design.

The purpose of the inventions is to show the efficiency of the dam operation by quenching the kinetic energy of the stream and simplifying its design.

The goal is achieved by the fact that in a longitudinal river dam, including sections made of shields, installed vertically in a stream and interconnected to form a broken line in plan, the sections in plan have a trapezoidal shape and smaller bases facing the protected shore from the formation of through channels between each other, the head shield of each section having a height equal to not less than the depth of the bridge in the river, and buried in the bottom of the channel, and two subsequent shields are arranged to form a gap between the gh m and a lower face shield.

In addition, the shield sections are rigidly interconnected by means of horizontal beams and mounted on the piles.

Fig. 1 shows a diverting dam installed in flow 3. 3

ke, plan view; figure 2 is the same, a fragment of two sections, a view in plan; on fig.Z - section aa in figure 2; figure 4 - section bb in figure 2; in fig. 5 is a section bb, in FIG. 2, in FIG. 6, a section in D-D in FIG. 2; in fig. 7 - dam, axonometric view.

The longitudinal transverse dam consists of sections 1, made of shields 2,3 and A, installed vertically and rigidly interconnected to form a broken line in plan. Sections in the plan have

trapezoidal shape and smaller 4B bases facing the protected shore. Boards 2,3 and 4 are mounted on piles 5. Sections 1 are interconnected by means of horizontal beams 6c with the formation of through channels 7. Moreover, the head shield 2 of each section 1 has a height equal to at least the depth of the water in. river, and buried in the bottom of the channel 8, and two subsequent

Shield 3,4 are located with the formation of a gap 9 between the lower edge of the shield and the bottom of the channel. The dam is set in river flow 10.

The dam works as follows. In the river flow 10 passing through the system of sections 1 formed by shields 2,3,4, transverse circulation and double helical movements arise due to the different arrangement of shields. As a result of the spiral motion of the flow, the bottom jets, saturated with sediments, intercept the shields and through the free space of the lumen 9 and the channels 7 are demolished.

 along the protected shore. In this case, the broken outline of the dam creates an additional roughness and reduces the flow velocity. Channel channels 7 of the form reduce the flow velocity in the zone of the protected shore, as a result of which intensive bedding occurs. In connection with the increased intensity and stability of the transverse circulation in the river flow passing through the through part of the dam, and the creation of a double helical motion, interception and deflection of the sediment carried over the entire height of the dam is ensured.

5 protected shore.

The use of a longitudinal jet dam will significantly improve the effectiveness of protection

31139793

the coast due to the formation of broken current, and, therefore, contributes to the form of the dam and through channels that increase the deposition of bottom sediments along the transverse circulation of the coast.

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FIG. 2

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FIG. 6

Faye. 7

Claims (2)

1. LONGITUDINAL RIVER STRIP DIRECTIONAL DAM, including sections made of shields, mounted vertically in the stream and interconnected to form a broken line in plan, characterized in that, in order to increase the efficiency of the dam by means of enhanced quenching of the kinetic energy of the stream and simplification its designs, sections c. plan have a trapezoidal shape and with smaller bases facing the protected coast with the formation of through channels between each other, and the head shield of each section has a height equal to at least the depth of the water in the river and is buried in the bottom of the channel, and two subsequent shields are located with the formation of a gap between the bottom and the bottom edge of the shield. 2. A dam according to π.1, which is characterized in that the sections are rigidly interconnected by means of horizontal beams and mounted on piles. ω s YuoA Mat, hel C © SaE> 1 1139793 2