CN116856346A - Blocking structure for debris flow disaster management - Google Patents

Abstract

The application relates to a blocking structure for debris flow disaster management, and belongs to the technical field of hydraulic and hydroelectric engineering. The blocking structure comprises a dam body, wherein a drainage hole for draining water in the debris flow is formed in one side, close to the debris flow, of the dam body; a plurality of sliding grooves which are uniformly distributed along the horizontal direction are formed in one side, close to the debris flow, of the dam body, sliding columns are connected in the sliding grooves in a sliding manner, and stone blocking mechanisms for blocking rolling stones are arranged at one ends, located outside the sliding grooves, of the sliding columns; and a buffer piece is arranged between the sliding column and the bottom of the sliding groove. According to the application, the stone blocking mechanism on the sliding column can be close to or far away from the dam body, so that the impact force of stone blocks and boulders in debris flow on the stone blocking mechanism is conveniently converted into the moving power of the sliding column and the stone blocking mechanism, and the horizontal moving amplitude of the sliding column and the stone blocking mechanism can be reduced through the buffer piece, so that the impact force of the debris flow on the front face of the dam body is reduced, and the service life of the blocking structure is effectively prolonged.

Description

Barrier structures for debris flow disaster control

Technical field

This application relates to the technical field of water conservancy and hydropower engineering, and in particular to a blocking structure for debris flow disaster control.

Background technique

Debris flow is a common geological disaster in mountainous areas. It is a special torrent that carries a large amount of solid materials such as sand, stones, and boulders on valleys or hillsides due to precipitation such as heavy rain, glaciers, and melted snow. Debris flow is one of the most common geological disasters in mountainous areas. Its engineering management measures mainly include water control projects such as water storage projects, diversion and drainage projects, and soil control projects to control the sources of loose solids such as retaining dams, grid dams, retaining walls, and slope protection. And submersible dam projects, etc., drainage projects such as drainage dikes, downstream dams, diversion embankments, aqueducts, open channels, etc., and siltation stop projects such as siltation stops and mud banks, etc.

At this stage, the retaining structure used in engineering is generally a retaining concrete dam. The dam body is provided with holes for drainage and reducing the dead weight of the dam body.

However, when a retaining concrete dam blocks a debris flow, the rocks and boulders in the debris flow hit the front of the dam body, easily causing damage to the dam body and holes.

Contents of the invention

In order to effectively extend the service life of the blocking structure, this application provides a blocking structure for debris flow disaster control.

The purpose of this application is to provide a blocking structure for debris flow disaster control, which adopts the following technical solution:

A blocking structure for managing debris flow disasters, including a dam body. A leak hole for discharging water in the debris flow is provided on the side of the dam body close to the direction of the debris flow. The dam body is close to the side of the debris flow. A plurality of sliding troughs evenly distributed along the horizontal direction are provided, and a sliding column is slidably connected in the sliding trough. An end of the sliding column located outside the sliding trough is provided with a rock blocking mechanism for intercepting rolling stones; A buffer is provided between the sliding column and the bottom of the sliding groove; a cleaning ring is rotatably connected in the leakage hole, and a plurality of cleaning rings are arranged circumferentially to abut against the walls of the leakage hole. The cleaning rod; the dam body is provided with a linkage component for converting the horizontal movement of the sliding column into the rotation of the cleaning ring.

By adopting the above technical solution, the discharge hole can guide the water in the debris flow to the slope outside the dam body to reduce the impact of the energy carried by the debris flow on the dam body; and then through the rock blocking mechanism, the rocks in the debris flow can be blocked and boulders to slow down the flow of debris flows. The sliding column cooperates with the sliding groove so that the rock-blocking mechanism on the sliding column can be close to or away from the dam body, which facilitates the conversion of the impact force of stones and boulders on the rock-blocking mechanism in the debris flow into the sliding column and the stone-blocking mechanism. The moving power, through the buffer, can reduce the horizontal movement of the sliding column and the rock-blocking mechanism, thereby reducing the impact of the debris flow on the front of the dam body and effectively extending the service life of the blocking structure. The impact of the debris flow on the rock blocking mechanism will cause the sliding column to move horizontally in the sliding groove to drive the cleaning ring to rotate. The rotation of the cleaning ring will drive the cleaning rod to rotate, thereby stirring up the sediment blocked in the discharge hole. , so that the discharge hole can better guide the water and sand in the debris flow to the slope outside the dam body, so as to facilitate the cleaning of the sediment in the dam body. That is to say, the impact force of the debris flow on the rock blocking mechanism is converted into the power to clean the sediment in the discharge hole, which can effectively extend the service life of the blocking structure.

Optionally, the stone blocking mechanism includes a stone blocking column, an end of the sliding column away from the buffer member is fixedly connected with a mounting block, and a mounting slot is provided on the side of the stone blocking column that is plug-fitted with the mounting block. The sliding column is provided with a limiting component for limiting the mounting block in the mounting groove.

By adopting the above technical solution, the installation block cooperates with the installation groove to detachably fix the stone blocking column on the sliding column. When the stone blocking column is damaged under the impact of stones and boulders, it is easy to replace the stone blocking column; The installation block is then restricted in the installation groove through the restriction assembly, so that the rock-blocking column is more firmly fixed on the sliding column, thereby improving the connection strength between the stone-blocking column and the sliding column, so as to improve the resistance of the stone-blocking column to the stones in the debris flow. and the interception effect of boulders.

Optionally, the restriction assembly includes a first restriction block and a first restriction groove. A first chute is provided on the side of the installation block for the first restriction block to slide. The first restriction groove is provided in the installation groove. the groove wall, and the first limiting groove is plug-fitted with the end of the first limiting block; a first snap-in spring is provided in the first chute, and one end of the first snap-in spring is fixed to the first On the groove wall of a chute, the other end of the first clamping spring is fixed on the first limiting block.

By adopting the above technical solution, the end of the first limiting block can be protruded from the side of the mounting block through the first clamping spring, so that the end of the first limiting block can be inserted into the first limiting groove, thereby limiting the mounting block. in the mounting slot.

Optionally, a first sliding hole connected to the first slide groove is provided in the sliding column, and a first pull rope is slidably connected in the first sliding hole; the sliding column rotates A reel is connected, one end of the first stay rope is fixed on the first limiting block, and the other end of the first stay rope is wound around the reel.

By adopting the above technical solution, rotating the winding wheel will cause the end of the first limiting block to retract into the first chute, so that the installation block can be pulled out from the installation groove of the stone blocking column, thereby facilitating the replacement of the stone blocking column.

Optionally, the rock-blocking mechanism also includes a stone-blocking grid screen sleeve, the stone-blocking grid screen sleeve is fixedly connected to the sliding column, and the stone-blocking grid screen sleeve is located between the stone blocking column and the dam body. between.

By adopting the above technical solution, the stone blocking pillars intercept large stones in the debris flow, and the stone blocking grille screen intercepts the small sand and stones in the debris flow, thereby better slowing down the flow speed of the debris flow and reducing the impact of the debris flow on the dam body. Smaller to extend the service life of the dam body.

Optionally, a support rod is fixedly connected between the stone blocking grid screen sleeve and the stone blocking column, and the support rod is located at an end of the stone blocking column away from the sliding column.

By adopting the above technical solution, the end of the stone blocking column away from the sliding column can be supported by the support rod to increase the stability of the stone blocking column being fixed on the sliding column, thereby improving the blocking effect of the stone blocking column on + stones in the debris flow.

Optionally, both ends of the support rod are fixedly connected with snap-in blocks, and the stone-blocking grid screen sleeves and the stone-blocking pillars are fixedly connected with snap-in frames that are plug-fitted with the clip-on blocks.

By adopting the above technical solution, the snap-in block cooperates with the snap-in frame, so that the support rod can be detachably connected to the stone-blocking grid screen sleeve and the stone-blocking column, which facilitates the replacement of the stone-blocking grid screen sleeve or the stone-blocking column.

Optionally, the linkage assembly includes a gear, a rack, a worm wheel and a worm, a driving rod is rotatably connected to the dam body, and the driving rod and the sliding column are perpendicular to each other; the rack is fixedly connected to the sliding column. on the rack, and the rack is arranged along the length direction of the sliding column; the gear is fixedly connected to the driving rod, and the gear meshes with the rack; the worm gear is sleeved on the outer wall of the cleaning ring, and the The worm is fixedly connected to the drive rod and meshes with the worm gear.

By adopting the above technical solution, the sliding column moves horizontally in the sliding groove to drive the rack to move horizontally, thereby driving the gear to rotate; the rotation of the gear will rotate the driving rod and the worm together, and the worm drives the worm wheel to rotate, and the worm wheel will The cleaning ring and the cleaning rod are driven to rotate, thereby cleaning the sediment in multiple leak holes at the same time.

To sum up, this application includes at least one of the following beneficial technical effects:

1. The water in the debris flow can be guided to the outer slope of the dam body through the discharge hole to reduce the impact of the energy carried by the debris flow on the dam body; and then through the rock blocking mechanism, the stones and boulders in the debris flow can be blocked , which is convenient for slowing down the flow rate of debris flow. The sliding column cooperates with the sliding groove so that the rock-blocking mechanism on the sliding column can be close to or away from the dam body, which facilitates the conversion of the impact force of stones and boulders on the rock-blocking mechanism in the debris flow into the sliding column and the stone-blocking mechanism. The moving power, through the buffer, can reduce the horizontal movement of the sliding column and the rock-blocking mechanism, thereby reducing the impact of the debris flow on the front of the dam body and effectively extending the service life of the blocking structure;

2. The impact of the debris flow on the rock blocking mechanism will cause the sliding column to move horizontally in the sliding groove to drive the cleaning ring to rotate. The rotation of the cleaning ring will drive the cleaning rod to rotate, thereby removing the sediment blocked in the discharge hole. Stirring is carried out so that the discharge hole can better guide the water and sand in the debris flow to the slope outside the dam body, so as to facilitate the cleaning of the sediment in the dam body. That is to say, the impact force of the debris flow on the rock blocking mechanism is converted into the power to clean the sediment in the discharge hole, which can effectively extend the service life of the blocking structure.

Description of the drawings

Figure 1 is a partial structural cross-sectional view of a blocking structure used for debris flow disaster control in an embodiment of the present application;

Figure 2 is a partial structural cross-sectional view of the embodiment of the present application, mainly used to show the connection schematic diagram of the sliding column and the rock blocking mechanism;

Figure 3 is an enlarged view of part A in Figure 2;

Figure 4 is a partial structural schematic diagram of an embodiment of the present application, mainly used to show the connection schematic diagram of the sliding column, cleaning ring and linkage components.

Explanation of reference signs: 1. Dam body; 2. Discharge hole; 3. Sliding groove; 4. Sliding column; 5. Rock blocking mechanism; 51. Stone blocking column; 52. Stone blocking grid screen cover; 6. Buffer; 7. Installation block; 8. Installation groove; 9. Limiting component; 91. First limiting block; 92. First limiting groove; 93. First chute; 94. First snap spring; 10. A sliding hole; 11. First pull rope; 12. Winding wheel; 13. Support rod; 14. Snap block; 15. Snap frame; 16. Cleaning ring; 17. Cleaning rod; 18. Linkage component; 181. Gear; 182. Rack; 183. Worm gear; 184. Worm; 185. Driving rod; 19. Fixing seat; 20. Second limiting block; 21. Second limiting groove; 22. Second chute; 23. The second snap spring; 24, the second sliding hole; 25, the second pull rope; 26, the knob.

Implementation

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings 1-4 and the embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

The embodiment of the present application discloses a blocking structure for debris flow disaster control. Referring to Figure 1, the blocking structure includes a dam body 1. A leak hole 2 for discharging water in the debris flow is provided on the side of the dam body 1 close to the direction of the debris flow. Among them, the dam body 1 is made of reinforced concrete cast in situ. The cross section of the dam body 1 is a right-angled trapezoid, and the bottom end of the dam body 1 is large and the top end is small. The leak hole 2 is reserved during the pouring process of the dam body 1. , there are multiple leakage holes 2, and the plurality of leakage holes 2 are evenly arranged along the length direction of the dam body 1.

Referring to Figures 1 and 2, in order to reduce the impact of debris flow on the front of the dam body 1, a plurality of slip grooves 3 are provided on the side of the dam body 1, and the plurality of slip grooves 3 are evenly distributed along the horizontal direction of the dam body 1; A sliding column 4 is slidably connected in the sliding groove 3, and an end of the sliding column 4 located outside the sliding groove 3 is fixedly connected with a rock blocking mechanism 5. Among them, the sliding column 4 adopts a reinforced concrete structure or can also be made of steel material, and the sliding column 4 is cylindrical; through the stone blocking mechanism 5, the stones and boulders in the debris flow can be blocked, so as to slow down the flow rate of the debris flow. ; Then the sliding column 4 cooperates with the sliding groove 3 so that the rock-blocking mechanism 5 on the sliding column 4 can be close to or away from the dam body 1, which facilitates the impact of stones and boulders in the debris flow on the stone-blocking mechanism 5. Converted into the power of movement of the sliding column 4 and the rock blocking mechanism 5.

Referring to Figures 1 and 2, in order to better slow down the flow rate of the debris flow, the stone blocking mechanism 5 includes stone blocking pillars 51 and stone blocking grid screen sets 52. The stone blocking pillars 51 and the stone blocking grid screen sets 52 are both fixedly connected to the sliding on the pillar 4, and the stone blocking grid screen sleeve 52 is located between the stone blocking pillar 51 and the dam body 1. Among them, the stone blocking pillar 51 adopts a reinforced concrete structure or can also be made of steel material, and the stone blocking pillar 51 is in the shape of a cylinder; the stone blocking grid screen cover 52 is made of steel material, and the stone blocking grid screen cover 52 is in the shape of a rectangular parallelepiped ; Three stone blocking pillars 51 correspond to one stone blocking grid screen sleeve 52; the large stones in the debris flow are intercepted by the stone blocking pillars 51, and the small gravels in the debris flow are intercepted by the stone blocking grid screen sleeve 52, thereby better slowing down the flow. The flow rate of the debris flow makes the impact of the debris flow on the dam body 1 smaller, thereby extending the service life of the dam body 1 .

Referring to Figures 1 and 2, in order to improve the interception effect of the stone blocking pillars 51 on stones in the debris flow, a support rod 13 is fixedly connected between the stone blocking grid screen sleeve 52 and the stone blocking pillar 51. The support rod 13 is located away from the stone blocking pillar 51 and away from the slide. One end of the moving column 4, in which both ends of the support rod 13 are integrally formed with snap-in blocks 14, and the stone-blocking grid screen sleeve 52 and the stone-blocking column 51 are connected with a clip-on frame 15 using bolts. The clip-on frame 15 It is plug-fitted with the snap-in block 14, and the vertical section of the snap-in frame 15 is convex; by the snap-in block 14 mating with the snap-in frame 15, the support rod 13 can be detachably connected to the stone barrier screen sleeve 52 and the snap-in frame 15. On the stone blocking column 51, it is convenient to replace the stone blocking grid screen cover 52 or the stone blocking column 51; and then the end of the stone blocking column 51 away from the sliding column 4 can be supported through the support rod 13 to increase the fixation of the stone blocking column 51 on the sliding column. The stability of the pillar 4 is improved, thereby improving the blocking effect of the stone blocking pillar 51 on the debris flow to the rocks.

Referring to Figures 2 and 3, in order to replace the damaged stone blocking column 51, one end of the sliding column 4 is fixedly connected with a mounting block 7, and a mounting slot 8 is provided on the side of the stone blocking column 51. The mounting slot 8 is plugged into the mounting block 7. Cooperation; The sliding column 4 is provided with a limiting component 9 for limiting the mounting block 7 in the mounting slot 8 . Among them, the installation block 7 is in the shape of a rectangular parallelepiped, and the installation block 7 and the sliding column 4 are integrally formed; the installation slot 8 can be reserved when making the stone blocking column 51; by matching the installation block 7 with the installation groove 8, the stone blocking column 51 It is detachably fixed on the sliding column 4. When the stone blocking column 51 is damaged under the impact of stones and boulders, it is convenient to replace the stone blocking column 51; and then the installation block 7 is restricted to the installation slot 8 through the limiting assembly 9 within, so that the stone blocking pillar 51 is fixed more firmly on the sliding column 4, thereby improving the connection strength between the stone blocking pillar 51 and the sliding column 4, so as to improve the blocking effect of the stone blocking pillar 51 on stones and boulders in the debris flow. .

Referring to Figures 2 and 3, in order to better disassemble and assemble the stone blocking pillar 51, the limiting assembly 9 includes a first limiting block 91 and a first limiting groove 92. A first chute 93 is provided on the side of the mounting block 7. The slide groove 93 is slidably matched with the first limiting block 91, the first limiting groove 92 is opened in the wall of the mounting groove 8, and the first limiting groove 92 is plug-fitted with the end of the first limiting block 91; the first sliding groove 93 is slidably matched with the first limiting block 91. A first snap spring 94 is installed in the first chute 93 . One end of the first snap spring 94 is fixed on the groove wall of the first chute 93 , and the other end of the first snap spring 94 is fixed on the first limiting block 91 . The end of the first restricting block 91 can be protruded from the side of the mounting block 7 through the first snap spring 94, so that the end of the first restricting block 91 can be inserted into the first restricting groove 92, thereby restricting the mounting block 7. in the mounting slot 8.

It should be noted that first slide grooves 93 are provided on opposite sides of the mounting block 7 , that is, there are two first limiting blocks 91 , and there are also two corresponding first limiting grooves 92 on the wall of the mounting groove 8 . . In this embodiment, there is one first snap spring 94 in the installation block 7 , and both ends of the first snap spring 94 are respectively fixed on the first limiting block 91 .

Referring to Figures 2 and 3, in order to better disassemble and assemble the stone blocking column 51, a first sliding hole 10 is provided in the sliding column 4, and the first sliding hole 10 is connected with the first sliding groove 93. The first pull rope 11 is slidably connected in the sliding hole 10; the reel 12 is rotatably connected in the sliding column 4. One end of the first pull rope 11 is fixed on the first limiting block 91. The other end is wound around the reel 12 . Among them, the end surface of the first limiting block 91 away from the first pull rope 11 is an inclined surface. The rotating shaft of the reel 12 is fixedly connected with a knob 26 , and the knob 26 is located outside the sliding column 4 . By turning the knob 26, the end of the first limiting block 91 is retracted into the first chute 93, so that the mounting block 7 can be pulled out from the mounting groove 8 of the stone blocking column 51, thereby facilitating the replacement of the stone blocking column 51.

Referring to Figures 2 and 3, in order to better disassemble and assemble the stone barrier screen cover 52, the bottom end of the stone barrier screen cover 52 is integrally formed with a fixed seat 19, and the lower surface of the fixed seat 19 is in contact with the sliding column. 4, that is, the lower surface of the fixed seat 19 is a semicircular arc surface. A second chute 22 is provided on the side of the sliding column 4, and a second limiting block 20 is slidably connected in the second chute 22; a second limiting groove 21 is formed on the inner side of the fixed base 19, and the second limiting groove 21 It is plug-fitted with the end of the second limiting block 20; a second snap spring 23 is installed in the second chute 22, and one end of the second snap spring 23 is fixed on the wall of the second chute 22. The other end of the snap spring 23 is fixed on the second limiting block 20 . The second latching spring 23 allows the end of the second limiting block 20 to protrude from the side of the sliding column 4 , so that the end of the second limiting block 20 is inserted into the second limiting groove 21 , thereby locking the fixed seat 19 Fixed in the sliding column 4.

It should be noted that there are two second slide grooves 22 on the sliding column 4, that is, there are two second limiting blocks 20, and the fixed base 19 also has two corresponding second limiting grooves 21. In this embodiment, there is one second clamping spring 23 in the sliding column 4 , and both ends of the second clamping spring 23 are respectively fixed on the second limiting block 20 .

Referring to Figures 2 and 3, in order to better disassemble and assemble the stone barrier screen cover 52, a second sliding hole 24 is provided in the sliding column 4, and the second sliding hole 24 is connected to the second chute 22. Through, a second pull cord 25 is slidably connected in the second sliding hole 24; one end of the second pull cord 25 is fixed on the second limiting block 20, and the other end of the second pull cord 25 is wound around the winding wheel 12. , that is, the first limiting block 91 and the second limiting block 20 on the same sliding column 4 use a reel 12 to drive them to move. The end surface of the second limiting block 20 away from the second pull cord 25 is an inclined surface; by rotating the knob 26, the end of the second limiting block 20 will be retracted into the second slide groove 22, so that the fixed base 19 can be moved from the slide. The moving column 4 can be disassembled to facilitate the replacement of the rock grating screen sleeve 52.

Referring to Figures 1 and 4, in order to reduce the impact of debris flow on the front of the dam body 1, a buffer 6 is provided between the sliding column 4 and the bottom of the sliding groove 3. The buffer 6 uses a buffer spring. One end of the spring is fixedly connected to the end of the sliding column 4, and the other end of the buffer spring is fixedly connected to the bottom of the sliding groove 3; the buffer spring can reduce the horizontal movement amplitude of the sliding column 4 and the stone blocking mechanism 5, Thereby, the impact force of the debris flow on the front of the dam body 1 is reduced, and the service life of the blocking structure is effectively extended.

Referring to Figures 1 and 4, in order to reduce the drainage hole 2 from being blocked by sediment, a cleaning ring 16 is rotatably connected to the drainage hole 2. The cleaning ring 16 is provided with a plurality of cleaning rods 17 in the circumferential direction. The plurality of cleaning rods 17 are respectively It is in contact with the hole wall of the discharge hole 2; a linkage assembly 18 for converting the horizontal movement of the sliding column 4 into the rotation of the cleaning ring 16 is installed in the dam body 1. The impact of the debris flow on the rock-blocking mechanism 5 will cause the sliding column 4 to move horizontally in the sliding groove 3 to drive the cleaning ring 16 to rotate. The rotation of the cleaning ring 16 will drive the cleaning rod 17 to rotate, thereby affecting the discharge hole 2 The sediment blocked inside is stirred, so that the discharge hole 2 can better guide the water and sand in the debris flow to the slope outside the dam body 1, so as to facilitate the cleaning of the sediment inside the dam body 1. That is, the impact force of the debris flow on the rock blocking mechanism 5 is converted into the power for cleaning the sediment in the discharge hole 2, which can effectively extend the service life of the blocking structure.

Referring to Figures 1 and 4, in order to clean the sediment in multiple discharge holes 2 at the same time, the linkage assembly 18 includes a gear 181, a rack 182, a worm gear 183 and a worm 184, and a driving rod 185 is rotatably connected to the dam body 1 , the driving rod 185 and the sliding column 4 are perpendicular to each other; the rack 182 is fixedly connected to the sliding column 4, and the rack 182 is arranged along the length direction of the sliding column 4; the gear 181 is fixedly connected to the driving rod 185, and the gear 181 meshes with the rack 182; the worm gear 183 is sleeved on the outer wall of the cleaning ring 16, the worm 184 is fixedly connected to the driving rod 185, and the worm 184 meshes with the worm gear 183. Among them, the gear 181 and the worm 184 are both fixed on the driving rod 185 by key connection. Three gears 181 and two worms 184 are fixed on one driving rod 185 .

It should be noted that the sliding column 4 moves horizontally in the sliding groove 3 to drive the rack 182 to move horizontally, thereby driving the gear 181 to rotate; the rotation of the gear 181 will rotate the driving rod 185 and the worm 184 together, The worm 184 drives the worm gear 183 to rotate, and the worm gear 183 drives the cleaning ring 16 and the cleaning rod 17 to rotate, thereby cleaning the sediment in the multiple leak holes 2 at the same time.

The implementation principle of a blocking structure for debris flow disaster control in the embodiment of the present application is: the discharge hole 2 can guide the water in the debris flow to the outer slope of the dam body 1 to reduce the impact of the energy carried by the debris flow on the dam body 1 The impact caused by the rock-blocking mechanism 5 can block the stones and boulders in the debris flow, so as to slow down the flow rate of the debris flow. The sliding column 4 cooperates with the sliding groove 3 so that the rock blocking mechanism 5 on the sliding column 4 can be close to or away from the dam body 1, which facilitates the conversion of the impact force of stones and boulders on the rock blocking mechanism 5 in the debris flow into sliding The moving power of the moving column 4 and the rock blocking mechanism 5 can be reduced by the buffer 6 to reduce the horizontal movement range of the sliding column 4 and the rock blocking mechanism 5, thereby reducing the impact of the debris flow on the front of the dam body 1 and effectively extending the blocking The service life of the structure.

The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Any feature disclosed in this specification (including the abstract and the drawings), unless specifically stated, can be replaced by other equivalent or similar features. Replace it with the alternative characteristics of the purpose. Therefore: all equivalent changes made based on the structure, shape, and principle of this application should be covered by the protection scope of this application.

Claims (8)

1. The utility model provides a block structure for mud-rock flow disaster management, includes dam body (1), be close to mud-rock flow on dam body (1) and come to one side and set up drain hole (2) that are arranged in the discharge mud-rock flow, its characterized in that, a plurality of sliding grooves (3) along horizontal evenly distributed are seted up to one side that dam body (1) is close to mud-rock flow come to, sliding connection has slip post (4) in sliding groove (3), the one end that is located outside sliding groove (3) on sliding post (4) is provided with block stone mechanism (5) that are used for intercepting the barren rock; a buffer piece (6) is arranged between the sliding column (4) and the bottom of the sliding groove (3); the cleaning device is characterized in that the drain hole (2) is rotationally connected with a cleaning ring (16), and a plurality of cleaning rods (17) which are abutted against the wall of the drain hole (2) are circumferentially arranged on the cleaning ring (16); a linkage assembly (18) for converting the horizontal movement of the sliding column (4) into the rotation of the cleaning ring (16) is arranged in the dam body (1).

2. The blocking structure for debris flow disaster management according to claim 1, wherein the stone blocking mechanism (5) comprises a stone blocking column (51), one end, far away from the buffer member (6), of the sliding column (4) is fixedly connected with a mounting block (7), a mounting groove (8) which is in plug-in fit with the mounting block (7) is formed in the side face of the stone blocking column (51), and a limiting assembly (9) for limiting the mounting block (7) in the mounting groove (8) is arranged on the sliding column (4).

3. The blocking structure for debris flow disaster management according to claim 2, wherein the limiting assembly (9) comprises a first limiting block (91) and a first limiting groove (92), a first sliding groove (93) for sliding the first limiting block (91) is formed in the side face of the mounting block (7), the first limiting groove (92) is formed in the groove wall of the mounting groove (8), and the first limiting groove (92) is in plug-in fit with the end part of the first limiting block (91); the sliding groove (3) is internally provided with a first clamping spring (94), one end of the first clamping spring (94) is fixed on the groove wall of the first sliding groove (93), and the other end of the first clamping spring (94) is fixed on the first limiting block (91).

4. The blocking structure for debris flow disaster management according to claim 3, wherein a first sliding hole (10) communicated with a first sliding groove (93) is formed in the sliding column (4), and a first pull rope (11) is slidably connected in the first sliding hole (10); the sliding column (4) is rotationally connected with a reel (12), one end of the first stay cord (11) is fixed on the first limiting block (91), and the other end of the first stay cord (11) is wound on the reel (12).

5. The blocking structure for debris flow disaster management according to claim 2, wherein said stone blocking mechanism (5) further comprises a stone blocking grid sleeve (52), said stone blocking grid sleeve (52) is fixedly connected to the sliding column (4), and said stone blocking grid sleeve (52) is located between the stone blocking column (51) and the dam body (1).

6. The blocking structure for debris flow disaster management according to claim 5, wherein a supporting rod (13) is fixedly connected between the stone blocking grid sleeve (52) and the stone blocking column (51), and the supporting rod (13) is located at one end of the stone blocking column (51) far away from the sliding column (4).

7. The blocking structure for debris flow disaster management according to claim 6, wherein two ends of the supporting rod (13) are fixedly connected with clamping blocks (14), and clamping frames (15) which are in plug-in fit with the clamping blocks (14) are fixedly connected to the stone blocking grid sleeve (52) and the stone blocking column (51).

8. The blocking structure for debris flow disaster management according to claim 1, wherein said linkage assembly (18) comprises a gear (181), a rack (182), a worm wheel (183) and a worm (184), said dam body (1) is rotatably connected with a driving rod (185), said driving rod (185) is mutually perpendicular to said sliding column (4); the rack (182) is fixedly connected to the sliding column (4), and the rack (182) is arranged along the length direction of the sliding column (4); the gear (181) is fixedly connected to the driving rod (185), and the gear (181) is meshed with the rack (182); the worm gear (183) is sleeved on the outer wall of the cleaning ring (16), the worm (184) is fixedly connected to the driving rod (185), and the worm (184) is meshed with the worm gear (183).