CN114606911B - A device for preventing earthquake landslide surge from impacting dam structure - Google Patents

Abstract

The invention discloses a device for preventing earthquake landslide surges from impacting dam structures, which relates to the technical field of dam protection, including a slope body; a dam built on the opposite bank of the slope body; a fixing rod fixed on the The side of the dam close to the slope body is fixed vertically to the slope of the dam; the anti-shock component is hinged on the fixed rod to block the impact of the landslide surge on the dam; and the energy dissipation component is hinged on the anti-shock The bottom of the impact component, and it is suspended on the water body, is used for the initial energy dissipation of the landslide surge. The invention can initially dissipate the energy of the landslide surge through the energy dissipation component, thereby reducing the impact force of the landslide surge, and then further dissipate the energy of the landslide surge through the anti-shock component, thereby avoiding its direct impact on the dam.

Description

A device for preventing earthquake landslide surge from impacting dam structure

technical field

The invention relates to the technical field of dam protection, in particular to a device for preventing earthquake landslide surges from impacting dam structures.

Background technique

Landslide surge is the surge caused by the sudden decline of the rock and soil on the bank slope of the reservoir area and the impact of the reservoir water. Small landslides are not harmful, but the huge landslides of large landslides rush into the reservoir at a very fast speed, and the water body is aroused by huge surge waves. , rushing to the opposite bank or water-retaining structures, and the surge wave will produce a climbing phenomenon, thereby overturning the dam crest, endangering the dam body and downstream.

The existing anti-shock structure can only reduce the impact on the dam, and the anti-shock structure will be damaged if it is subjected to the impact of the surge for a long time, it is not easy to replace, and it cannot effectively prevent the climbing phenomenon of the surge.

In view of the above problems, the present invention provides a device for preventing earthquake landslide surges from impacting the dam structure, so as to solve the above problems.

Contents of the invention

In order to achieve the above object, the present invention provides the following technical solutions: a device for preventing earthquake landslide surge from impacting the dam structure, comprising:

Slope;

A dam is built on the opposite bank of the slope;

The fixing rod is fixed on the side of the dam close to the slope body, and is fixed vertically to the slope of the dam;

An anti-shock component, hinged on the fixed rod, is used to block the impact of the landslide surge on the dam; and

The energy dissipation component is hinged at the bottom of the anti-shock component, and is suspended on the water body, and is used for preliminary energy dissipation of the landslide surge.

Further, preferably, the energy dissipation component includes:

A connecting plate, one end of which is hinged at the bottom of the anti-shock assembly;

A limiting plate, fixed on the upper end surface of the connecting plate away from the anti-shock assembly;

The reverse thrust components are symmetrically arranged in two groups, the bottom of which is connected by a suspension plate, and the bottom of the suspension plate is connected above the limit plate by a limit chain;

a mounting bracket fixed on the upper end surface of the thrust reverser assembly; and

The turntable assembly is fixed on the upper end surface of the installation frame and is located in the middle of the thrust reverser assembly, and is used for preliminary energy dissipation of the landslide surge.

Further, preferably, the reverse thrust assembly includes:

a thrust reverse column fixed on the end surface of the suspension plate; and

The reverse thrust block is slidably arranged on the side of the reverse thrust column away from the anti-shock assembly, and a reverse thrust spring is arranged between the reverse thrust column and the reverse thrust column;

Moreover, the side of the reverse thrust block away from the reverse thrust spring is provided with an arc-shaped energy-collecting surface for collecting the impact force of the landslide surge, and applying a reverse impact force to the landslide surge through the reverse thrust spring.

Further, preferably, the turntable assembly includes:

The connecting shaft is fixed on the upper end surface of the mounting frame by a mounting seat;

The turntable is symmetrically and rotatably arranged on the connecting shaft, and the sides close to each other are provided with limiting wheels, and the limiting wheels are fixed on the connecting shaft; and

The baffles are circumferentially arranged between the turntables.

Further, preferably, the blocking piece is an arc-shaped piece, which is convenient for the landslide surge to provide power for the rotation of the turntable.

Further, preferably, a rotating cylinder is coaxially fixed between the turntables, the inner circumference of the rotating cylinder is hinged with a plurality of limit teeth, and the plurality of limit teeth are all meshed with the limit wheel, and A plurality of the limiting teeth are all pressed against the limiting wheel by the spring leaf, so as to provide resistance to the rotation of the turntable.

Further, preferably, the anti-shock assembly includes:

a reset plate, hinged on the fixed rod;

The upper impact plate is hinged on the upper end of the reset plate;

The lower impact plate is hinged at the lower end of the reset plate;

Moreover, guide columns are slidably arranged between the upper impact plate, the lower impact plate and the reset plate, and guide springs are sleeved on the outer walls of the guide columns;

a reset component, symmetrically and slidably arranged inside the fixed rod; and

One end of the sliding plate is hinged on the reset plate, and the other end is hinged on the reset assembly.

Further, preferably, an elastic connecting plate is hinged on the side of the upper impact plate and the lower impact plate away from the fixed rod, and the elastic connecting plate is an arc-shaped guiding structure for guiding the landslide surge.

Further, preferably, the reset component includes:

The reset slot is set inside the fixed rod;

The reset block is slidably arranged in the reset slot, and a reset spring is arranged between both sides of the reset slot and the reset slot; and

The hinged bin is fixed on the upper end surface of the reset block and is located outside the fixed rod.

Compared with the prior art, the present invention provides a device for preventing earthquake landslide surge from impacting the dam structure, which has the following beneficial effects:

In the present invention, the small-scale landslide surge can be directly eliminated by the energy dissipation component provided, avoiding the long-term impact of the landslide surge on the anti-shock component, and when the energy dissipation component dissipates energy on the landslide surge, it can be reversed The block collects the impact force. When the anti-thrust spring is compressed to the limit, it pushes the anti-thrust block and makes it generate a thrust to the impact force, so that it offsets the impact generated by the landslide surge and improves the energy dissipation effect. The cooperation of the limit wheel and the limit tooth increases the resistance when the turntable rotates, so as to further dissipate the energy of the landslide surge. When a large landslide surge occurs, the energy dissipation component can be used to initially dissipate the energy of the landslide surge, and through the The hinged position of the anti-shock component pushes the lower impact plate to rotate, thereby buffering the landslide surge, and drives the upper impact plate and reset plate to move, so that the elastic connecting plate forms a semi-circular arc located in the first quadrant, so that the climbing The surge forms a parabola and collides with the landslide surge, thereby preventing the climbing phenomenon of the landslide surge from crossing the dam and improving the safety of the device.

Description of drawings

Fig. 1 is a kind of overall schematic diagram that is used to prevent earthquake landslide surge from impacting the dam structure;

Fig. 2 is a kind of schematic diagram of the energy dissipating assembly for preventing earthquake landslide surge from impacting the dam structure;

Fig. 3 is a kind of schematic diagram of the anti-shock assembly for preventing earthquake landslide surge from impacting the dam structure;

Fig. 4 is a schematic diagram of reset assembly for preventing earthquake landslide surge from impacting the dam structure;

In the figure: 1, dam; 2, slope body; 3, energy dissipation component; 4, fixed rod; 5, anti-shock component; 31, connecting plate; 32, limit plate; 33, limit chain; 34, reverse thrust Column; 341, anti-thrust block; 35, mounting frame; 36, connecting shaft; 37, turntable; 371, rotating cylinder; 372, limit tooth; 373, spring leaf; 38, retaining plate; 51, reset plate; 52, Upper impact plate; 53, lower impact plate; 54, elastic connecting plate; 55, guide column; 56, sliding plate; 57, reset assembly; 571, reset groove; 572, reset block; 573, hinged warehouse; .

Detailed ways

Referring to Figures 1 to 4, the present invention provides a technical solution: a device for preventing earthquake landslide surge from impacting the dam structure, including:

slope body 2;

The dam 1 is built on the opposite bank of the slope body 2;

The fixed rod 4 is fixed on the side of the dam 1 close to the slope body 2, and is fixed vertically to the slope of the dam 1;

An anti-shock assembly 5, hinged on the fixed rod 4, is used to block the impact of landslide surges on the dam 1; and

The energy dissipation component 3 is hinged on the bottom of the anti-shock component 5, and it is suspended on the water body, and is used for preliminary energy dissipation of the landslide surge.

It should be noted that the anti-shock component 5 and the energy dissipation component 3 can be installed in multiples according to the building direction of the dam 1, so that the dam 1 can be fully protected.

In this embodiment, the energy dissipation component 3 includes:

A connecting plate 31, one end of which is hinged at the bottom of the anti-shock assembly 5;

The limiting plate 32 is fixed on the upper end surface of the connecting plate 31 away from the anti-shock assembly 5;

The reverse thrust components are symmetrically arranged in two groups, the bottom of which is connected by a suspension plate, and the bottom of the suspension plate is connected above the limit plate 32 by a limit chain 33;

The mounting bracket 35 is fixed on the upper end surface of the thrust reverser assembly; and

The turntable assembly is fixed on the upper end surface of the installation frame 35 and is located in the middle of the thrust reverser assembly, and is used for preliminary energy dissipation of the landslide surge.

It should be noted that the lower part of the turntable assembly is located in the water body, so that the waves generated by the wind on the water surface can be eliminated at ordinary times, avoiding the normal force of the anti-shock assembly 5, and improving its service life, that is to say, only need to dissipate energy Components are replaced regularly, reducing the difficulty of replacement.

As a preferred embodiment, the pushback component includes:

Reverse thrust column 34, fixed on the end surface of the suspension board; and

The anti-thrust block 341 is slidably arranged on the side of the anti-shock assembly 5 of the anti-thrust column 34, and a anti-thrust spring is arranged between the anti-thrust column 34;

In addition, the reverse thrust block 341 is provided with an arc-shaped energy collecting surface on the side away from the reverse thrust spring, which is used to collect the impact force of the landslide surge, and exerts a reverse impact force on the landslide surge through the reverse thrust spring.

That is to say, when the anti-thrust spring is compressed to the limit, it pushes the anti-thrust block 341 and makes it generate a thrust to the impact force, so that it and the impact generated by the landslide surge cancel each other out, improving the energy dissipation effect.

As a preferred embodiment, the turntable assembly includes:

The connecting shaft 36 is fixed on the upper end surface of the mounting frame 35 by a mounting seat;

The turntable 37 is symmetrically and rotatably arranged on the connecting shaft 36, and the side close to each other is provided with a limiting wheel, and the limiting wheel is fixed on the connecting shaft 36; and

The baffles 38 are circumferentially arranged between the turntables 37 .

As a preferred embodiment, the blocking piece 38 is an arc-shaped piece, which is convenient for the landslide surge to provide power for the rotation of the turntable 37 .

As a preferred embodiment, a rotating cylinder 371 is coaxially fixed between the rotating disks 37, and a plurality of limiting teeth 372 are hinged on the inner circumference of the rotating cylinder 371, and the plurality of limiting teeth 372 are all connected to the The limit wheels are engaged, and a plurality of limit teeth 372 are pressed against the limit wheels by spring plates 373 to provide resistance to the rotation of the turntable 37, so as to further eliminate landslide surges. able.

In this embodiment, the anti-shock assembly 5 includes:

The reset plate 51 is hinged on the fixed rod 4;

The upper impact plate 52 is hinged on the upper end of the reset plate 51;

The lower impact plate 53 is hinged at the lower end of the reset plate 51;

Moreover, a guide column 55 is slidingly arranged between the upper impact plate 52, the lower impact plate 53 and the reset plate 51, and a guide spring is sleeved on the outer wall of the guide column 55;

A reset assembly 57 is symmetrically and slidably arranged inside the fixed rod 4; and

One end of the sliding plate 56 is hinged on the reset plate 51 , and the other end is hinged on the reset assembly 57 .

As a preferred embodiment, the side of the upper impact plate 52 and the lower impact plate 53 away from the fixed rod 4 is hinged with an elastic connecting plate 54, and the elastic connecting plate 54 is an arc-shaped guiding structure, which is used to counteract landslide surges. to guide.

It should be noted that when the elastic connecting plate 54 is in an unquiet state, it forms a semicircle in the fourth quadrant through the upper impact plate 52 and the lower impact plate 53 .

As a preferred embodiment, the reset component 57 includes:

The reset slot 571 is set inside the fixed rod 4;

The reset block 572 is slidably disposed in the reset groove 571, and a reset spring 574 is arranged between both sides thereof and the reset groove 571; and

The hinged bin 573 is fixed on the upper end surface of the reset block 572 and is located outside the fixed rod 4 .

Specifically, the small-scale landslide surge can be eliminated directly by the energy dissipation component 3 provided, avoiding the long-term impact of the anti-shock component 5 by the landslide surge, and when the energy dissipation component 3 dissipates energy for the landslide surge, it can pass The anti-thrust block 341 collects the impact force. When the anti-thrust spring is compressed to the limit, it pushes the anti-thrust block and makes it generate a thrust to the impact force, so that it can offset the impact of the landslide surge and improve the energy dissipation effect. It is also possible to improve the resistance when the turntable 37 rotates through the cooperation of the limit wheel and the limit tooth 372, thereby further dissipating energy from the landslide surge. Dissipate energy, and push the lower impact plate 53 to rotate through the hinged position with the anti-shock assembly 5, thereby buffering the landslide surge, and driving the upper impact plate 52 and the reset plate 51 to move, so that the elastic connecting plate 54 is located in the first quadrant The semi-circular arc can make the climbing surge form a parabola and collide with the landslide surge, thereby preventing the climbing phenomenon of the landslide surge from crossing the dam and improving the safety of the device.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any person familiar with the technical field within the technical scope disclosed in the present invention, according to the technology of the present invention Any equivalent replacement or change of the scheme and its inventive concepts shall fall within the protection scope of the present invention.

Claims (6)

1. A device for preventing earthquake landslide surge from impacting the dam structure, characterized in that: comprising: Slope (2); The dam (1) is built on the opposite bank of the slope (2); The fixing rod (4) is fixed on the side of the dam (1) close to the slope body (2), and is fixed vertically to the slope of the dam (1); The anti-shock component (5), hinged on the fixed rod (4), is used to block the impact of the landslide surge on the dam (1); and The energy dissipation component (3) is hinged on the bottom of the anti-shock component (5), and it is suspended on the water body, and is used for preliminary energy dissipation of the landslide surge; The anti-shock assembly (5) includes: reset plate (51), hinged on the fixed rod (4); The upper impact plate (52), hinged on the upper end of the reset plate (51); The lower impact plate (53) is hinged at the lower end of the reset plate (51); Moreover, a guide post (55) is slidably arranged between the upper impact plate (52), the lower impact plate (53) and the reset plate (51), and a guide spring is sleeved on the outer wall of the guide post (55); a reset component (57), symmetrically and slidably arranged inside the fixed rod (4); and A sliding plate (56), one end is hinged on the reset plate (51), and the other end is hinged on the reset assembly (57); The side of the upper impact plate (52) and the lower impact plate (53) away from the fixed rod (4) is hinged with an elastic connecting plate (54), and the elastic connecting plate (54) is an arc-shaped guiding structure for landslide surge guidance; The reset assembly (57) includes: A reset slot (571) is set inside the fixed rod (4); a reset block (572), which is slidably arranged in the reset groove (571), and a reset spring (574) is arranged between its two sides and the reset groove (571); and The hinged bin (573) is fixed on the upper end surface of the reset block (572) and is located outside the fixed rod (4). 2. A kind of device for preventing earthquake landslide surge from impacting the dam structure according to claim 1, characterized in that: the energy dissipation assembly (3) comprises: A connecting plate (31), one end of which is hinged at the bottom of the anti-shock assembly (5); The limit plate (32) is fixed on the upper end surface of the connecting plate (31) away from the anti-shock component (5); The reverse thrust assembly is symmetrically arranged in two groups, the bottom of which is connected by a suspension plate, and the bottom of the suspension plate is connected above the limit plate (32) by a limit chain (33); The mounting bracket (35) is fixed on the upper end surface of the thrust reverser assembly; and The turntable assembly is fixed on the upper end surface of the installation frame (35), and is located in the middle of the thrust reverser assembly, and is used for preliminary energy dissipation of the landslide surge. 3. A device for preventing earthquake landslide surge from impacting the dam structure according to claim 2, characterized in that: the reverse thrust assembly includes: reverse thrust column (34), fixed on the end surface of the suspension plate; and A reverse thrust block (341), which is slidably arranged on the side of the reverse thrust column (34) away from the anti-shock assembly (5), and a reverse thrust spring is arranged between the reverse thrust column (34); Moreover, the side of the reverse thrust block (341) away from the reverse thrust spring is provided with an arc-shaped energy collecting surface, which is used to collect the impact force of the landslide surge, and exerts a reverse impact force on the landslide surge through the reverse thrust spring. . 4. A device for preventing earthquake landslide surges from impacting the dam structure according to claim 2, wherein the turntable assembly includes: The connecting shaft (36) is fixed on the upper end surface of the mounting frame (35) by a mounting seat; The turntable (37) is symmetrically and rotatably arranged on the connecting shaft (36), and its sides close to each other are provided with limiting wheels, and the limiting wheels are fixed on the connecting shaft (36); and The baffles (38) are circumferentially arranged between the rotating disks (37). 5. A device for preventing earthquake landslide surges from impacting the dam structure according to claim 4, characterized in that: the retaining piece (38) is an arc-shaped sheet body, which is convenient for landslide surges to form a turntable (37 ) rotation to provide power. 6. A device for preventing earthquake landslide surges from impacting the dam structure according to claim 4, characterized in that: a rotating cylinder (371) is coaxially fixed between the rotating disks (37), and the rotating The inner circumference of the cylinder (371) is hinged with a plurality of limit teeth (372), and the plurality of limit teeth (372) are all meshed with the limit wheel, and the plurality of limit teeth (372) are all The spring sheet (373) is pressed against the limit wheel to provide resistance to the rotation of the turntable (37).

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