Rainwater guide and drainage device suitable for outer slope surface of dam body

Abstract

The utility model discloses a rainwater guide and drainage device suitable for an outer slope surface of a dam body. The rainwater guide and drainage device comprises a U-shaped guide plate, a U-shaped pressing strip, a V-shaped guide plate, a V-shaped pressing strip, a U-shaped nail and a grating cover plate, the head end and the tail end of the V-shaped guide plate and the head end and the tail end of the U-shaped guide plate are each provided with a concave-convex body composed of a protruding edge and a groove, the V-shaped guide plate and the U-shaped guide plate can be lengthened through lap joint of the concave-convex bodies on the head portions and the tail portions of the V-shaped guide plate and the U-shaped guide plate, the left side and the right side of the U-shaped guide plate are in lap joint with the V-shaped guide plate respectively, the U-shaped guide plate forms a bottom groove of the guide and drainage device, and the V-shaped guide plate forms the edge of the guide and drainage device. The V-shaped pressing strip and the U-shaped pressing strip are plastic dipping thin steel plate strips and are respectively pre-pressed into shapes matched with the V-shaped guide plate and the U-shaped guide plate; the middle of the V-shaped guide plate is connected with a V-shaped pressing strip. The middle of the U-shaped guide plate is connected with a U-shaped pressing strip. Two punched holes are formed in the centers of the two ends of the V-shaped pressing strip and the U-shaped pressing strip, and U-shaped nails are installed in the punched holes and used for fixing the two guide plates; and the grating cover plate covers the top of the guide and discharge device.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dam body water drainage technical field, concretely relates to a rainwater drainage device suitable for dam body outer slope face. BACKGROUND

[0002] The dam of domestic tailing pond is built with local materials, and most of them are earth dams. Nowadays, extreme weather such as storm is more and more frequent, and the storm weather leads to more and more serious gullies on the outer slope of the dam, which becomes a hidden danger for the safe operation of the tailing pond. To correct this hidden danger, the same dam materials and construction standards are generally used to repair and fill the dam, and a large number of gullies of different sizes are formed by the storm erosion. The small and large gullies are closely arranged and sometimes form thousands of gullies. The width and depth of some large gullies reach 1.5 m. The height of some dam bodies and their slopes reaches dozens of meters. The general slope ratio is 1:2-1:2.5. In particular, the outer side of the dam built by the center line method is a large slope surface without buffer steps. A large amount of soil is needed to repair the gullies. There is no construction operation road for the vehicles and machinery for transporting earthwork. The engineering quantity of manual construction is huge. The compaction of the newly filled part of the gully is difficult. Therefore, the repair of the gullies consumes a lot of manpower, material resources and financial resources. CONTENT OF THE UTILITY MODEL

[0003] To solve the problem that the earth dam is eroded by storm and a large number of gullies appear on the surface of the dam, threatening the safety of the dam, the utility model provides a rainwater drainage device suitable for the outer slope surface of the dam. The device is arranged in advance, and when a heavy storm occurs, the accumulated water on the surface of the dam can be drained through reasonable drainage, thereby preventing gullies from occurring and endangering the safety of the dam.

[0004] Therefore, the utility model adopts the following technical solutions:

[0005] A rainwater drainage device suitable for the outer slope surface of a dam, comprising a U-shaped guide plate, a U-shaped pressing strip, a V-shaped guide plate, a V-shaped pressing strip, a U-shaped nail and a grid cover plate.

[0006] The V-shaped guide plate and the U-shaped guide plate are both provided with a concave-convex body composed of a convex edge and a concave groove at the head and tail ends. The V-shaped guide plate and the U-shaped guide plate can be extended by lapping the concave-convex bodies at the head and tail ends. The left and right sides of the U-shaped guide plate are respectively lapped with the V-shaped guide plate. The U-shaped guide plate forms the bottom groove of the drainage device, and the V-shaped guide plate forms the edge of the drainage device.

[0007] The V-shaped pressing strip and the U-shaped pressing strip are plastic immersed thin steel strips, which are respectively pre-pressed into shapes suitable for the V-shaped guide plate and the U-shaped guide plate. The middle part of the V-shaped guide plate is connected with the V-shaped pressing strip, and the middle part of the U-shaped guide plate is connected with the U-shaped pressing strip. The two ends of the V-shaped pressing strip and the U-shaped pressing strip are both provided with two punching holes, and the U-shaped nail is installed in the punching hole for fixing the two guide plates.

[0008] The grid cover plate is arranged on the top of the drainage device.

[0009] Further, the V-shaped guide plate is made of steel skeleton PVC material, and the middle part is bent in a 120° V shape; the U-shaped guide plate is made of steel skeleton PVC material, and is bent in a " shape.

[0010] Further, the thickness of the V-shaped guide plate and the U-shaped guide plate is 20 mm, and the length is equal.

[0011] Further, the thickness of the V-shaped pressing strip and the U-shaped pressing strip is 12 mm, and they are respectively pressed into a V shape and a " shape.

[0012] Further, the U-shaped nail is made of plastic-impregnated steel nail, which is made of a steel bar with a diameter of 8 mm, and the nail length is 220 mm.

[0013] The beneficial effects of the utility model lie in:

[0014] The implementation of the present application can effectively drain the precipitation from the dam surface, reduce the dam top surface, sub-dam horse path and surface water, avoid the precipitation aggregation and gully occurrence, reduce the damage risk of buildings, roads and dams and their infrastructure, provide a repair idea for existing gullies, and benefit the safe and stable operation of dam facilities such as tailings ponds. The drainage device is light in material, simple in structure, convenient to combine and lay, good in weather resistance, obviously reduces the construction difficulty and construction amount compared with the concrete plate, brick and mortar stone drainage pipe trench, more economical than the resin material drainage trench, better in adaptability and weather resistance than the cement blanket drainage trench, and high in comprehensive construction quality and efficiency, so it is worth promoting. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a dam body outside water drainage device and its plane arrangement schematic view (part) of the embodiment;

[0016] Figure 2 It is a U-shaped guide plate assembly schematic view;

[0017] Figure 3 It is a V-shaped guide plate assembly schematic view;

[0018] Figure 4 It is a U-shaped guide plate and V-shaped guide plate combination and dam body outer slope surface laying installation cross section schematic view;

[0019] Figure 5 It is a U-shaped guide plate and V-shaped guide plate first and last in turn pressing concave-convex part local shape schematic view;

[0020] Figure 6 It is a V-shaped pressing strip shape schematic view;

[0021] Figure 7 It is a U-shaped pressing strip shape schematic view;​​

[0022] Figure 8 for the grid cover plate shape schematic diagram;

[0023] In the figure: 1-V-shaped guide plate, 2-V-shaped pressing strip, 3-U-shaped nail, 4-grid cover plate, 5-U-shaped guide plate, 6-U-shaped pressing strip. DETAILED DESCRIPTION

[0024] The utility model will be further described below in combination with the drawings and specific embodiments:

[0025] The utility model relates to a kind of rainwater drainage devices suitable for dam body outer slope face, and drainage device includes V-shaped guide plate 1, V-shaped pressing strip 2, U-shaped nail 3, grid cover plate 4, U-shaped guide plate 5, U-shaped pressing strip 6.

[0026] V-shaped guide plate 1 is steel skeleton PVC material, middle part is 120 ° V-shaped, U-shaped guide plate 5 is steel skeleton PVC material, middle part's water guide groove is Each guide plate can be extended by the concave-convex body of its head and tail, the length of V-shaped guide plate 1 and U-shaped guide plate 5 is preferably determined considering vehicle transportation and construction convenience, and the thickness is 20 mm, wherein the length of each side of the cross section of V-shaped guide plate 1 and U-shaped guide plate 5 is equal. The guide plate of the utility model is made of steel skeleton PVC material, which has low material cost, easy processing and manufacturing, good weather resistance, long service life, certain deformation elasticity and adaptability to irregular soil conditions during dam body laying.

[0027] V-shaped pressing strip 2 and U-shaped pressing strip 6 are plastic immersed thin steel strips, with a thickness of 12 mm, and are respectively pre-pressed into 120 ° V-shaped and V-shaped guide plate 1 and U-shaped guide plate 5 are matched with each other, and the middle part of V-shaped guide plate 1 and the middle part of U-shaped guide plate 5 are V-shaped pressing strip 2 and U-shaped pressing strip 6 are both punched with two holes with a distance of 30 mm and a diameter of 12 mm in the middle, for fixing the guide plate.

[0028] U-shaped nail 3 is a plastic immersed steel nail, made of steel bar with a diameter of 8 mm, and the length of U-shaped nail 3 is 220 mm. U-shaped nail 3 is hammered into the two punched holes in the middle of V-shaped pressing strip 2 and U-shaped pressing strip 6, with a distance of 30 mm and a diameter of 12 mm, and into the dam body soil, so as to connect the head and tail of each two V-shaped guide plates 1 and U-shaped guide plates 5 and fix them with the dam body slope surface as a whole.

[0029] Grid cover plate 4 is a plastic immersed steel grid, used to cover the opening of U-shaped guide plate 5, with a length suitable for construction and transportation (such as 1.8 m), a width C of U-shaped guide plate 5 opening width H+200 mm, a width of 100 mm on both sides of U-shaped guide plate 5 opening after covering, a thickness of 12-16 mm, and a mesh of 8 mm*8 mm.

[0030] V-shaped batten 2, U-shaped batten 6, U-shaped nail 3, grid cover plate 4 are all plastic immersed to improve the adaptability to field open rain erosion performance, long service life.

[0031] The implementation of the above guide and drainage device is that when the dam body is built, the dam top surface maintains 1%-2% slope towards the dam to make the rainwater on the dam body surface flow into the reservoir immediately, reducing rainwater accumulation, the dam body has 0.15% downward slope from the middle to both ends along the axis direction, and U-shaped guide plates 5 are laid on the outer slope surface of the dam body at certain intervals along the axis direction; U-shaped guide plates 5 are laid along the outer slope foot of the dam body and covered with grid cover plates 4, the U-shaped guide plates 5 are communicated with each U-shaped guide plate 5 on the outer slope surface, and the drainage outlet is arranged to flow to the ground, and then is guided and drained to the tailings pond outside the dam or the tailings conveying pipeline drainage pool. When each period of dam building of dam body heightening, the guide and drainage device is also arranged in the same period, and the newly arranged guide and drainage device is communicated with the guide and drainage device laid in the previous period, if the total storage capacity of the tailings pond design includes the dam body heightening part, the drainage allowance of the drainage guide trench under the total dam height elevation of the local maximum rainfall in the last 50 years should be considered in advance, the size of the U-shaped guide plate 5 laid in the first period should be the largest, and the size of the U-shaped guide plate 5 laid in the last period should be the smallest, so as to adapt to the weather storm water flow at that time, the U-shaped guide plate 5 laid in the first period should be the largest, which is the sum of the rainwater accumulation of each period of the dam body total height, and the drainage allowance of each period of U-shaped plate trench is determined, and the size of each period of U-shaped guide plate 5 is determined, and the U-shaped guide plate 5 laid in the last period is the smallest.

[0032] The laying and installation layout diagram of the guide and drainage device is shown in Figure 1 As shown, when the initial dam and each period of dam building of dam body heightening, the dam top surface maintains 1%-2% slope towards the dam to make the rainwater on the dam body surface flow into the reservoir immediately, reducing rainwater accumulation, the dam body has 0.15% downward slope from the middle to both ends along the axis direction, and U-shaped guide plates 5 are laid on the outer slope surface of the dam body at certain intervals along the axis direction; U-shaped guide plates 5 are laid along the outer slope foot of the dam body and covered with grid cover plates 4, the U-shaped guide plates 5 are communicated with each U-shaped guide plate 5 on the outer slope surface, and the drainage outlet is arranged to flow to the ground, and then is guided and drained to the tailings pond outside the dam or the tailings conveying pipeline drainage pool. When each period of dam building of dam body heightening, the guide and drainage device is also arranged in the same period, and the newly arranged guide and drainage device is communicated with the guide and drainage device laid in the previous period, if the total storage capacity of the tailings pond design includes the dam body heightening part, the drainage allowance of the drainage guide trench under the total dam height elevation of the local maximum rainfall in the last 50 years should be considered in advance, the size of the U-shaped guide plate 5 laid in the first period should be the largest, and the size of the U-shaped guide plate 5 laid in the last period should be the smallest, so as to adapt to the weather storm water flow at that time, the U-shaped guide plate 5 laid in the first period should be the largest, which is the sum of the rainwater accumulation of each period of the dam body total height, and the drainage allowance of each period of U-shaped plate trench is determined, and the size of each period of U-shaped guide plate 5 is determined, and the U-shaped guide plate 5 laid in the last period is the smallest.

[0033] V-shaped guide plate 1, U-shaped guide plate 5 end-to-end connection and its two with the dam body outer slope surface fixed laying installation see Figure 2 , Figure 3 structure diagram and Figure 4 cross section diagram shown, wherein the first block U-shaped guide plate 5 end lower surface and the second block U-shaped guide plate 5 front end upper surface own recess and protrusion through the press tight combination into a body connection, and using the matching U-shaped strip 6 and U-shaped nail 3 fixed on the dam surface, subsequent extension connection in turn according to this operation. U-shaped guide plate both sides respectively inverted buckle set fixed V-shaped guide plate 1, V-shaped guide plate 1 structure see Figure 3 , V-shaped guide plate 1 and U-shaped guide plate 5 combination laying see Figure 4 cross section diagram shown. V-shaped guide plate 1 in turn connection for the first block V-shaped guide plate 1 end lower surface and the second block V-shaped guide plate 1 front end upper surface own recess and protrusion through the press tight combination into a body connection, and using the matching V-shaped strip 2 and U-shaped nail 3 fixed on the dam surface, subsequent extension connection in turn according to this operation. Among them, V-shaped guide plate 1 and U-shaped guide plate 5 respectively rely on the recess and protrusion of the respective first and last ends through the press tight in turn connection extension, the recess and protrusion structure of the first and last ends is shown in Figure 5 . Among them, V-shaped strip 2 and U-shaped strip 6 shape diagram are shown in Figure 6 , Figure 7 . Dam outside slope foot ground and each period of dam outside slope foot road inside laying U-shaped guide plate 5 as described above, along the dam axis along the slope installation laying, used to collect, guide and drain the rainwater of each period of dam and initial dam outside slope surface. Since the place is basically in the plane, the laying can not need to install all the U-shaped strip 6 and U-shaped nail 3 fixed, select the key position fixed; U-shaped guide plate 5 is covered with grid cover plate 4, which is arranged in turn and tightly covered on the U-shaped guide plate 5 to prevent large particles of stones and soil from accumulating in the U-shaped guide plate 5 and blocking the flow.

[0034] When repairing the dam body gully, the U-shaped guide plate 5 can be used to repair the individual low-lying large gully according to the above-mentioned slope laying method, and the drainage device is laid at the same time to guide the flow of water. V-shaped guide plate 1 can also be used upside down by 180°, so that the V-shaped inner angle is consistent with the combination of the outer slope surface and the dam top surface after stretching to protect the damaged part of the dam surface, and the gully repair is supplemented or the U-shaped guide plate 5 is added in the low-lying place to play a role in protecting the dam surface.

Claims

1. A device for guiding and draining rainwater from the outer slope surface of a dam, characterized in that, The U-shaped guide plate, the U-shaped pressing strip, the V-shaped guide plate, the V-shaped pressing strip, the U-shaped nail and the grid cover plate are included. The V-shaped guide plate and the U-shaped guide plate are provided with convex-concave bodies composed of convex edges and concave grooves at the head and tail ends, the V-shaped guide plate and the U-shaped guide plate can be extended by the lapping of the convex-concave bodies at the head and tail ends, the left and right sides of the U-shaped guide plate are respectively lapped with the V-shaped guide plate, the U-shaped guide plate forms the bottom groove of the guide device, and the V-shaped guide plate forms the edge of the guide device. The V-shaped pressing strip and the U-shaped pressing strip are plastic immersed thin steel strips, which are respectively pre-pressed into shapes suitable for the V-shaped guide plate and the U-shaped guide plate; the middle part of the V-shaped guide plate is connected with the V-shaped pressing strip, and the middle part of the U-shaped guide plate is connected with the U-shaped pressing strip; the two ends of the V-shaped pressing strip and the U-shaped pressing strip are both provided with two punching holes in the middle, and the U-shaped nails are installed in the punching holes for fixing the two guide plates. The grid cover plate is arranged on the top of the guide device.

2. The device for guiding and draining rainwater from the outer slope surface of a dam body according to claim 1, characterized in that, The V-shaped guide plate is made of steel skeleton PVC material, and the middle part is bent in a 120° V shape; the U-shaped guide plate is made of steel skeleton PVC material, and is bent in a U shape.

3. The device for guiding and draining rainwater from the outer slope surface of a dam body according to claim 2, characterized in that, The thickness of the V-shaped guide plate and the U-shaped guide plate is 20 mm, and the length is equal.

4. The device for guiding and draining rainwater from the outer slope surface of a dam body according to claim 1, characterized in that, The V-shaped pressing strip and the U-shaped pressing strip have a thickness of 12 mm, and are respectively pre-pressed into V-shaped and U-shaped shapes. The V-shaped pressing strip and the U-shaped pressing strip are both punched with two holes with a distance of 30 mm and a diameter of 12 mm at the middle of two ends.

5. The device for guiding and draining rainwater from the outer slope surface of a dam body according to claim 1, characterized in that, The U-shaped nail is a plastic immersed steel nail, which is made of a steel bar with a diameter of 8 mm and a length of 220 mm.

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