CN116856346B - Blocking structure for debris flow disaster management - Google Patents
Blocking structure for debris flow disaster management Download PDFInfo
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- CN116856346B CN116856346B CN202311115517.0A CN202311115517A CN116856346B CN 116856346 B CN116856346 B CN 116856346B CN 202311115517 A CN202311115517 A CN 202311115517A CN 116856346 B CN116856346 B CN 116856346B
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- sliding
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- column
- blocking
- debris flow
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- 230000000903 blocking effect Effects 0.000 title claims abstract description 136
- 239000004575 stone Substances 0.000 claims abstract description 145
- 230000007246 mechanism Effects 0.000 claims abstract description 41
- 238000004140 cleaning Methods 0.000 claims description 36
- 239000011435 rock Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 230000002035 prolonged effect Effects 0.000 abstract description 9
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 description 15
- 238000009434 installation Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011150 reinforced concrete Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000005413 snowmelt Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Revetment (AREA)
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
Technical Field
The application relates to the technical field of water conservancy and hydropower engineering, in particular to a blocking structure for debris flow disaster management.
Background
Debris flow is a common geological disaster in mountainous areas, and is a special flood carrying a large amount of solid substances such as sediment, stones and boulders generated on gully or hillside due to precipitation such as heavy rain, glaciers and snow melt water. The mud-rock flow is one of the most common geological disasters in mountain areas, and the engineering treatment measures mainly comprise water treatment engineering such as water storage engineering, drainage engineering, soil treatment engineering for controlling loose solid matter sources such as barrages, grating dams, retaining walls, slope protection, submerged dam engineering and the like, drainage engineering such as drainage guide dikes, along-water dams, diversion dikes, aqueducts, ming-dynasty and the like, and silt stopping engineering such as silt stopping fields, silt stopping warehouses and the like.
At present, a blocking structure adopted in engineering is generally used for blocking a concrete dam, and a hole is formed in a dam body to play a role in draining water and reducing self weight of the dam body.
However, when the concrete dam is blocked to block the debris flow, stones and boulders in the debris flow strike the front surface of the dam body, and damage to the dam body and the holes is easily caused.
Disclosure of Invention
In order to effectively prolong the service life of the blocking structure, the application provides the blocking structure for managing the debris flow disasters.
The application provides a blocking structure for debris flow disaster management, which adopts the following technical scheme:
a blocking structure for debris flow disaster management 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; a buffer piece is arranged between the sliding column and the bottom of the sliding groove; the cleaning ring is rotationally connected with the drain hole, and a plurality of cleaning rods which are abutted against the wall of the drain hole are circumferentially arranged on the cleaning ring; the dam body is internally provided with a linkage assembly for converting horizontal movement of the sliding column into rotation of the cleaning ring.
By adopting the technical scheme, the drainage hole can guide water in the debris flow to the slope on the outer side of the dam body so as to reduce the impact of the energy carried by the debris flow on the dam body; then stone and boulder in the mud-rock flow can be blocked by the stone blocking mechanism, so that the flow velocity of the mud-rock flow is conveniently slowed down. The sliding column is matched with the sliding groove, so that the stone blocking mechanism on the sliding column can be close to or far away from the dam body, the impact force of stone blocks and boulders on the stone blocking mechanism in debris flow is conveniently converted into the power for the sliding column and the stone blocking mechanism to move, the amplitude of the horizontal movement of the sliding column and the stone blocking mechanism can be reduced through the buffer piece, 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. The impact force of the debris flow on the stone blocking mechanism can enable the sliding column to horizontally move in the sliding groove so as to drive the cleaning ring to rotate, and the cleaning ring rotates to drive the cleaning rod to rotate, so that the sediment blocked in the drainage hole is stirred, the drainage hole can guide the water and the sediment in the debris flow to the slope on the outer side of the dam body, and the sediment in the dam body can be cleaned conveniently. Namely, the impact force of the debris flow on the stone blocking mechanism is converted into power for cleaning the sediment in the drainage hole, so that the service life of the blocking structure can be effectively prolonged.
Optionally, block stone mechanism includes blocks the stone column, the one end fixedly connected with installation piece that keeps away from the bolster on the post that slides, block stone column's side offered with installation piece grafting complex mounting groove, be provided with on the post that slides and be used for restricting the restriction subassembly in the mounting groove with the installation piece.
By adopting the technical scheme, the mounting blocks are matched with the mounting grooves, the stone blocking column is detachably fixed on the sliding column, and when the stone blocking column is damaged under the impact of stones and boulders, the stone blocking column is convenient to replace; and the mounting blocks are limited in the mounting grooves through the limiting assembly, so that the stone blocking columns are fixed on the sliding columns more firmly, the connection strength between the stone blocking columns and the sliding columns is improved, and the blocking effect of the stone blocking columns on stones and boulders in debris flow is improved.
Optionally, the limiting component comprises a first limiting block and a first limiting groove, a first sliding groove for sliding of the first limiting block is formed in the side face of the mounting block, the first limiting groove is formed in the groove wall of the mounting groove, and the first limiting groove is in plug-in fit with the end part of the first limiting block; the first sliding groove is internally provided with a first clamping spring, one end of the first clamping spring is fixed on the groove wall of the first sliding groove, and the other end of the first clamping spring is fixed on the first limiting block.
Through adopting above-mentioned technical scheme, can let the tip protrusion in the side of installation piece of first restriction piece through first joint spring to make the tip of first restriction piece insert in the first restriction groove, thereby restrict the installation piece in the mounting groove.
Optionally, a first sliding hole communicated with the first sliding groove is formed in the sliding column, and a first pull rope is slidably connected in the first sliding hole; the sliding column is rotationally connected with a reel, one end of the first stay cord is fixed on the first limiting block, and the other end of the first stay cord is wound on the reel.
Through adopting above-mentioned technical scheme, rotate the reel and will make the tip of first restriction piece retract into in the first spout to make the installation piece can follow and block in the mounting groove of stone pillar and dial, thereby be convenient for change the stone pillar.
Optionally, the stone blocking mechanism further comprises 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.
Through adopting above-mentioned technical scheme, block the stone pillar and intercept big stone in the mud-rock flow, block stone grid screen cover and intercept little grit in the mud-rock flow to better slow down the velocity of flow of mud-rock flow, make the mud-rock flow less to the impact effect of dam body, in order to prolong the life of dam body.
Optionally, fixedly connected with bracing piece between block grid screen cover and the block post, the bracing piece is located the block post and keeps away from the one end of post that slides.
Through adopting above-mentioned technical scheme, can keep away from the one end of post that slides to the stone pillar through the bracing piece and support to increase the stability that the stone pillar is fixed on the post that slides, thereby improve the blocking effect of stone pillar to +stone in the mud-rock flow.
Optionally, the both ends of bracing piece all fixedly connected with joint piece, all fixedly connected with on block stone grid screen cover and the block stone column with joint piece grafting complex joint frame.
Through adopting above-mentioned technical scheme, joint piece cooperatees with the joint frame for the bracing piece can be dismantled and connect on blocking stone grating screen cover and blocking stone column, is convenient for change blocking stone grating screen cover or blocking stone column.
Optionally, the linkage assembly comprises a gear, a rack, a worm wheel and a worm, wherein the dam body is rotationally connected with a driving rod, and the driving rod is mutually perpendicular to the sliding column; the rack is fixedly connected to the sliding column, and the rack is arranged along the length direction of the sliding column; the gear is fixedly connected to the driving rod and meshed with the rack; the worm wheel is sleeved on the outer wall of the cleaning ring, the worm is fixedly connected to the driving rod, and the worm is meshed with the worm wheel.
By adopting the technical scheme, the sliding column horizontally moves in the sliding groove to drive the rack to horizontally move, so that the gear is driven to rotate; the rotation of the gear rotates the driving rod and the worm together, the worm drives the worm wheel to rotate, and the worm wheel drives the cleaning ring and the cleaning rod to rotate, so that sediment in a plurality of drainage holes is cleaned simultaneously.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the water in the debris flow can be guided to the slope on the outer side of the dam body through the drainage hole, so that the impact of the energy carried by the debris flow on the dam body is reduced; then stone and boulder in the mud-rock flow can be blocked by the stone blocking mechanism, so that the flow velocity of the mud-rock flow is conveniently slowed down. The sliding column is matched with the sliding groove, so that the stone blocking mechanism on the sliding column can be close to or far away from the dam body, 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;
2. the impact force of the debris flow on the stone blocking mechanism can enable the sliding column to horizontally move in the sliding groove so as to drive the cleaning ring to rotate, and the cleaning ring rotates to drive the cleaning rod to rotate, so that the sediment blocked in the drainage hole is stirred, the drainage hole can guide the water and the sediment in the debris flow to the slope on the outer side of the dam body, and the sediment in the dam body can be cleaned conveniently. Namely, the impact force of the debris flow on the stone blocking mechanism is converted into power for cleaning the sediment in the drainage hole, so that the service life of the blocking structure can be effectively prolonged.
Drawings
FIG. 1 is a partial sectional view of a blocking structure for debris flow disaster management according to an embodiment of the present application;
FIG. 2 is a partial cross-sectional view of an embodiment of the present application, mainly for illustrating the connection of the sliding column and the stone-blocking mechanism;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic view of a portion of the structure of an embodiment of the present application, mainly used for showing the connection of the sliding column, the cleaning ring and the linkage assembly.
Reference numerals illustrate: 1. a dam body; 2. a drain hole; 3. a slip groove; 4. a slip column; 5. a stone blocking mechanism; 51. a stone blocking column; 52. a stone blocking grid screen sleeve; 6. a buffer member; 7. a mounting block; 8. a mounting groove; 9. a restriction assembly; 91. a first limiting block; 92. a first restriction groove; 93. a first chute; 94. a first clamping spring; 10. a first sliding hole; 11. a first pull rope; 12. a reel; 13. a support rod; 14. a clamping block; 15. a clamping frame; 16. cleaning the ring; 17. a cleaning lever; 18. a linkage assembly; 181. a gear; 182. a rack; 183. a worm wheel; 184. a worm; 185. a driving rod; 19. a fixing seat; 20. a second limiting block; 21. a second limiting groove; 22. a second chute; 23. a second clamping spring; 24. a second sliding hole; 25. a second pull rope; 26. and (5) a knob.
Description of the embodiments
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings 1 to 4 and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
The embodiment of the application discloses a blocking structure for debris flow disaster management. Referring to fig. 1, the blocking structure includes a dam body 1, and a drain hole 2 for draining water in a debris flow is formed at one side of the dam body 1, which is adjacent to the debris flow. Wherein, the dam body 1 is cast-in-situ by reinforced concrete, the cross section of the dam body 1 is in a right trapezoid shape, and the bottom end of the dam body 1 is large and the top end is small; the drainage holes 2 are reserved in the pouring process of the dam body 1, the number of the drainage holes 2 is multiple, and the drainage holes 2 are uniformly arranged along the length direction of the dam body 1.
Referring to fig. 1 and 2, in order to reduce an impact force of debris flow on the front surface of the dam body 1, a plurality of sliding grooves 3 are formed in a side surface of the dam body 1, and the sliding grooves 3 are uniformly distributed along the horizontal direction of the dam body 1; the sliding groove 3 is internally and slidably connected with a sliding column 4, and one end, which is positioned outside the sliding groove 3, of the sliding column 4 is fixedly connected with a stone blocking mechanism 5. Wherein, the sliding column 4 adopts a reinforced concrete structure, can also be made of steel materials, and the sliding column 4 is cylindrical; the stone blocking mechanism 5 can block stones and boulders in the debris flow, so that the flow rate of the debris flow is conveniently slowed down; the sliding column 4 is matched with the sliding groove 3, so that the stone blocking mechanism 5 on the sliding column 4 can be close to or far away from the dam body 1, and the impact force of stones and boulders in debris flow on the stone blocking mechanism 5 is conveniently converted into the power for the sliding column 4 and the stone blocking mechanism 5 to move.
Referring to fig. 1 and 2, in order to better slow down the flow rate of the debris flow, the stone blocking mechanism 5 includes a stone blocking column 51 and a stone blocking grid sleeve 52, both the stone blocking column 51 and the stone blocking grid sleeve 52 are fixedly connected to the sliding column 4, and the stone blocking grid sleeve 52 is located between the stone blocking column 51 and the dam body 1. Wherein, the stone pillar 51 adopts a reinforced concrete structure, can also be made of steel materials, and the stone pillar 51 is cylindrical; the stone blocking grid screen sleeve 52 is made of steel materials, and the stone blocking grid screen sleeve 52 is rectangular; the three stone blocking columns 51 correspond to one stone blocking grid screen sleeve 52; large stones in the debris flow are intercepted by the stone blocking column 51, and small sand stones in the debris flow are intercepted by the stone blocking grid screen sleeve 52, so that the flow speed of the debris flow is better slowed down, the impact effect of the debris flow on the dam body 1 is smaller, and the service life of the dam body 1 is prolonged.
Referring to fig. 1 and 2, in order to improve the blocking effect of the stone blocking column 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 column 51, the support rod 13 is positioned at one end of the stone blocking column 51 far away from the sliding column 4, clamping blocks 14 are uniformly formed at two ends of the support rod 13, clamping frames 15 are fixedly connected to the stone blocking grid screen sleeve 52 and the stone blocking column 51 by bolts, the clamping frames 15 are matched with the clamping blocks 14 in a plugging manner, and the vertical sections of the clamping frames 15 are in a convex shape; the clamping block 14 is matched with the clamping frame 15, so that the supporting rod 13 is detachably connected to the stone blocking grid screen sleeve 52 and the stone blocking column 51, and the stone blocking grid screen sleeve 52 or the stone blocking column 51 is convenient to replace; the support rod 13 can support one end, far away from the sliding column 4, of the stone blocking column 51 so as to increase the stability of fixing the stone blocking column 51 on the sliding column 4, and therefore the blocking effect of the stone blocking column 51 on debris flow to stones is improved.
Referring to fig. 2 and 3, in order to replace the damaged stone pillar 51, one end of the sliding pillar 4 is fixedly connected with a mounting block 7, a mounting groove 8 is formed in the side surface of the stone pillar 51, and the mounting groove 8 is in plug-in fit with the mounting block 7; the slide column 4 is provided with a restricting member 9 for restricting the mounting block 7 in the mounting groove 8. Wherein the mounting block 7 is in a cuboid shape, and the mounting block 7 and the sliding column 4 are integrally formed; the mounting groove 8 can be reserved when the stone pillar 51 is manufactured; the stone blocking column 51 is detachably fixed on the sliding column 4 through the matching of the mounting blocks 7 and the mounting grooves 8, and when the stone blocking column 51 is damaged under the impact of stones and boulders, the stone blocking column 51 is convenient to replace; the mounting blocks 7 are limited in the mounting grooves 8 through the limiting assemblies 9, so that the stone blocking columns 51 are fixed on the sliding columns 4 more firmly, the connection strength between the stone blocking columns 51 and the sliding columns 4 is improved, and the blocking effect of the stone blocking columns 51 on stones and boulders in debris flow is improved.
Referring to fig. 2 and 3, in order to better disassemble and assemble the stone pillar 51, the limiting assembly 9 includes a first limiting block 91 and a first limiting groove 92, a first sliding groove 93 is formed on the side surface of the mounting block 7, the first sliding groove 93 is slidably matched with the first limiting block 91, the first limiting groove 92 is formed on 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; a first clamping spring 94 is installed in the first sliding groove 93, 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. The end of the first restriction block 91 may protrude from the side surface of the mounting block 7 by the first click spring 94 so that the end of the first restriction block 91 is inserted into the first restriction groove 92, thereby restricting the mounting block 7 in the mounting groove 8.
It should be noted that, the opposite sides of the mounting block 7 are provided with the first sliding grooves 93, that is, two first limiting blocks 91, and two corresponding first limiting grooves 92 are also formed on the groove wall of the mounting groove 8. In the present embodiment, there is one first click spring 94 in the mounting block 7, and both ends of the first click spring 94 are fixed to the first limiting block 91, respectively.
Referring to fig. 2 and 3, in order to better disassemble and assemble the stone pillar 51, a first sliding hole 10 is formed in the sliding column 4, the first sliding hole 10 is communicated with a first sliding groove 93, and a first pull rope 11 is slidably connected in the first sliding hole 10; the reel 12 is rotatably connected to the slide column 4, one end of the first rope 11 is fixed to the first limiting block 91, and the other end of the first rope 11 is wound around the reel 12. The end surface of the first limiting block 91 far away from the first pull rope 11 is an inclined surface, a knob 26 is fixedly connected to the rotating shaft of the reel 12, and the knob 26 is located outside the sliding column 4. The end of the first limiting block 91 is retracted into the first sliding groove 93 by rotating the knob 26, so that the mounting block 7 can be pulled out of the mounting groove 8 of the stone pillar 51, thereby facilitating replacement of the stone pillar 51.
Referring to fig. 2 and 3, in order to better disassemble and assemble the stone blocking grid screen sleeve 52, the bottom end of the stone blocking grid screen sleeve 52 is integrally formed with a fixing seat 19, and the lower surface of the fixing seat 19 is matched with the sliding column 4, that is, the lower surface of the fixing seat 19 is a semicircular arc surface. The side surface of the sliding column 4 is provided with a second chute 22, and a second limiting block 20 is connected in a sliding way in the second chute 22; the inner side surface of the fixed seat 19 is provided with a second limiting groove 21, and the second limiting groove 21 is in plug-in fit with the end part of the second limiting block 20; a second clamping spring 23 is arranged in the second chute 22, one end of the second clamping spring 23 is fixed on the wall of the second chute 22, and the other end of the second clamping spring 23 is fixed on the second limiting block 20. The end of the second limiting block 20 can protrude out of the side surface of the sliding column 4 through the second clamping spring 23, so that the end of the second limiting block 20 is inserted into the second limiting groove 21, and the fixing seat 19 is fixed in the sliding column 4.
It should be noted that, if there are two second sliding grooves 22 on the sliding column 4, that is, two second limiting blocks 20, there are two corresponding second limiting grooves 21 on the fixing base 19. In the present embodiment, there is one second clamping spring 23 in the sliding column 4, and two ends of the second clamping spring 23 are respectively fixed on the second limiting block 20.
Referring to fig. 2 and 3, in order to better disassemble and assemble the stone blocking grid screen cover 52, a second sliding hole 24 is formed in the sliding column 4, the second sliding hole 24 is communicated with the second sliding groove 22, and a second pull rope 25 is slidably connected in the second sliding hole 24; one end of the second pulling rope 25 is fixed on the second limiting block 20, and the other end of the second pulling rope 25 is wound on the reel 12, namely, the first limiting block 91 and the second limiting block 20 on the same sliding column 4 are driven to move by adopting one reel 12. Wherein, the end surface of the second limiting block 20 far away from the second pull rope 25 is an inclined surface; the end of the second limiting block 20 is retracted into the second sliding groove 22 by rotating the knob 26, so that the fixing seat 19 can be detached from the sliding column 4, and the stone blocking grid sleeve 52 is convenient to replace.
Referring to fig. 1 and 4, in order to reduce the impact force of debris flow on the front surface of the dam body 1, a buffer piece 6 is arranged between the sliding column 4 and the bottom of the sliding groove 3, wherein the buffer piece 6 adopts a buffer spring, one end of the buffer spring is fixedly connected to the end part 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 horizontal movement amplitude of the sliding column 4 and the stone blocking mechanism 5 can be reduced through the buffer spring, so that the impact force of debris flow on the front face of the dam body 1 is reduced, and the service life of the blocking structure is effectively prolonged.
Referring to fig. 1 and 4, in order to reduce clogging of the drain hole 2 by silt, a cleaning ring 16 is rotatably connected to the drain hole 2, a plurality of cleaning rods 17 are circumferentially arranged on the cleaning ring 16, and the cleaning rods 17 are respectively abutted against the wall of the drain 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 force of the debris flow on the stone blocking mechanism 5 can enable the sliding column 4 to horizontally move in the sliding groove 3 so as to drive the cleaning ring 16 to rotate, and the cleaning ring 16 rotates to drive the cleaning rod 17 to rotate, so that the sediment blocked in the drainage hole 2 is stirred, and the drainage hole 2 can guide the water and the sediment in the debris flow to the slope on the outer side of the dam body 1 better, so that the sediment in the dam body 1 can be cleaned conveniently. Namely, the impact force of the debris flow on the stone blocking mechanism 5 is converted into power for cleaning the sediment in the drainage hole 2, so that the service life of the blocking structure can be effectively prolonged.
Referring to fig. 1 and 4, in order to simultaneously clean the silt in the plurality of drain holes 2, 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, and the driving rod 185 is perpendicular to the 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. Wherein, the gear 181 and the worm 184 are fixed on the driving rod 185 in a key connection manner, and 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, so as to drive the gear 181 to rotate; the rotation of the gear 181 rotates 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, so that the sediment in the plurality of drainage holes 2 is cleaned at the same time.
The implementation principle of the blocking structure for debris flow disaster management in the embodiment of the application is as follows: the drainage hole 2 can guide water in the debris flow to the slope on the outer side of the dam body 1 so as to reduce impact of energy carried by the debris flow on the dam body 1; the stone blocking mechanism 5 can block stones and boulders in the debris flow, so that the flow rate of the debris flow is conveniently slowed down. The sliding column 4 is matched with the sliding groove 3, so that the stone blocking mechanism 5 on the sliding column 4 can be close to or far away from the dam body 1, the impact force of stones and boulders in debris flow to the stone blocking mechanism 5 is converted into the power for the sliding column 4 and the stone blocking mechanism 5 to move, the amplitude of the horizontal movement of the sliding column 4 and the stone blocking mechanism 5 can be reduced through the buffer piece 6, the impact force of the debris flow on the front face of the dam body 1 is reduced, and the service life of the blocking structure is effectively prolonged.
The foregoing description of the preferred embodiments of the application is not intended to limit the scope of the application in any way, including the abstract and drawings, in which case any feature disclosed in this specification (including abstract and drawings) may be replaced by alternative features serving the same, equivalent purpose, unless expressly stated otherwise. Therefore: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (7)
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);
the linkage assembly (18) comprises a gear (181), a rack (182), a worm wheel (183) and a worm (184), wherein a driving rod (185) is rotationally connected to the dam body (1), and the driving rod (185) is mutually perpendicular to the 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).
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).
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