Lightweight rapid assembly type prestressed debris flow blocking dam

Abstract

The utility model relates to a kind of light quick assembly prestressed debris flow blocking dam, for solving cast-in-place blocking dam construction difficulty, long cycle and high maintenance cost problem.The blocking dam includes prefabricated vertical plate, ribbed plate, bottom plate and anchor cable and anchor rod.Vertical plate section is trapezoidal, side is provided with recess and male and female tenon, and anchor hole is reserved.Ribbed plate is connected with bottom surface by 1 / 4 circular surface connection slope, its slope is matched with vertical plate, and recess with anchor hole is equipped;Bottom plate contains male tenon and boss that are complementary with vertical plate tenon, and corresponding anchor hole is reserved.Its advantage is that modular prefabrication realizes quick assembly, adapts to emergency demand in flood season, and local damage can be replaced individually, greatly improves construction efficiency and maintenance convenience, and is suitable for debris flow high-risk area protection.

Description

Technical Field

[0001] This application relates to the field of debris flow gully protection in mountainous areas, and is a debris flow prevention and control facility, particularly a lightweight, rapidly assembled prestressed debris flow retaining dam. Background Technology

[0002] Mountain debris flows are sudden floods carrying large amounts of mud, sand, and rocks. They are characterized by high impact force, wide destructive range, and high frequency, easily destroying roads and other structures, causing serious casualties and economic losses. While cast-in-place concrete gravity retaining dams can form continuous retaining structures, they have significant limitations: the casting process is greatly restricted by terrain, the concrete curing period is long, it is difficult to respond to emergency needs during the flood season, local damage is difficult to repair, maintenance costs are high, and there is a risk of secondary disasters during the repair process. Therefore, there is an urgent need for new retaining structures that can be constructed quickly, are adaptable to small gullies, and are easy to maintain. Summary of the Invention

[0003] The purpose of this invention is to provide a lightweight, rapidly assembled prestressed debris flow retaining dam to solve the problems of difficult construction, long construction period, and high maintenance cost of cast-in-place retaining dams in mountainous gullies.

[0004] The novel prefabricated debris flow retaining dam includes: vertical plate 1, rib plate 2, bottom plate 3, anchor cable 4, and anchor rod 5.

[0005] The upright plate 1 includes a plate body 6 and a tenon 7, which are prefabricated as a whole. The plate body is characterized by a trapezoidal lateral cross-section with an upper base width of 250mm and a lower base width of 400mm. The back is a vertical surface with a height of 1800mm, which is extruded 1800mm along the length direction. A groove 8 is provided on the inclined surface with a depth of 100mm and a length of 300mm. The groove depth is consistent along the inclined surface, and there are two sets of grooves. A rectangular tenon 9 with a width × length of 80 × 60mm is provided on one side of the plate body, and a rectangular groove 10 is provided on the other side. The cross-section of the groove 10 is obtained by offsetting the tenon 9 outward by 10mm. An anchor hole 1 (11-1) with a radius of 25mm is reserved and extends through to the tenon 6. Two holes are one set, and there are three sets in total.

[0006] The rib 2 has a sloping left side, 1800mm high, and a horizontal bottom surface, 1600mm long. The sloping side and the bottom surface are connected by a 1 / 4 circular curved surface. The two ends of the curved surface are transitioned by horizontal and vertical sections, respectively. The width of the horizontal section is the same as the depth of the groove 8 of the vertical plate 1, and the height of the vertical section is the same as the height of the boss 16 of the bottom plate 3. The slope of the rib 2 is the same as the slope of the vertical plate 1, and the width is the same as the width of the groove 10 of the vertical plate. A groove 12 is set at 1 / 3 of the distance from the right end of the rib 2, with a width × length of 310 × 110mm. An anchor hole 2 (13-1) with a radius of 15mm is reserved in the groove 12. There are two sets of the rib 2 with the above features.

[0007] The base plate 3 includes a flat plate 14 and a male tenon 15, which are prefabricated as a whole; the male tenon end 15 of the flat base plate complements and fits with the female tenon 7 of the vertical plate, and the end is provided with a rectangular boss 16 with a width × height of 200 × 150 mm; the male tenon 15 is reserved with an anchor hole 1 (11-2) aligned with the vertical plate, and the flat plate is reserved with an anchor hole 2 (13-2) aligned with the rib plate.

[0008] The inner tenon 7 is characterized in that, based on a square with a side length of 300mm, the upper left part of its upper half region is cut along the horizontal center line to form a trapezoidal cross section that is wider at the top and narrower at the bottom; the outer tenon 15 is characterized in that, after the inner tenon is cut off from a square with a side length of 300mm, the remaining part is completely complementary to the inner tenon.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] (1) Fully prefabricated modular production, with on-site quick assembly of male and female tenons and anchors, greatly improving construction efficiency and enabling rapid response to flood season protection needs.

[0011] (2) The split design allows for individual module replacement, reducing later maintenance costs without affecting the overall function.

[0012] This invention achieves a systematic upgrade in the construction, protection, and maintenance efficiency of retaining dams through modular design. All materials used are common, with controllable costs and a mature supply chain, making it particularly suitable for large-scale deployment along major transportation routes in high-risk debris flow areas. Attached Figure Description

[0013] The features of this utility model will become more apparent when the following figures are consulted.

[0014] Figure 1 Schematic diagram after assembly.

[0015] Figure 2 Side view of the upright panel.

[0016] Figure 3 Front view of the upright panel.

[0017] Figure 4 Side view of the rib plate.

[0018] Figure 5 3D schematic diagram of the base plate.

[0019] Figure 6 Base plate assembly drawing.

[0020] Figure 7 Assembly drawing of the upright panel.

[0021] Figure 8 Rib assembly drawing.

[0022] Figure 9As-built rendering. Detailed Implementation

[0023] To make the modular assembly technology, structural innovation features, and disaster resistance and efficiency enhancement objectives of this utility model clearer, the following description, in conjunction with specific embodiments and accompanying drawings, further elaborates on this utility model.

[0024] This utility model provides a design scheme: a lightweight, rapid-assembly prestressed debris flow barrier dam, comprising: a vertical plate 1, a rib plate 2, a bottom plate 3, anchor cables 4, and anchor rods 5.

[0025] The top and bottom width of the upright board 1 is 250mm, the bottom width is 400mm, and the height is 1800mm. It is extruded 1800mm along the length direction. Two sets of grooves 8 are set on the beveled surface. The groove depth is 100mm and the length is 300mm. The groove depth is consistent along the beveled surface. A rectangular tenon 9 with a length × width of 60 × 80mm is set on one side of the board. A rectangular groove 10 is set on the other side, which is offset outward by 10mm. An anchor hole 1 (11-1) with a radius of 25mm is reserved and passes through to the inner tenon 6. Two holes form a set, and there are three sets in total.

[0026] like Figure 4 As shown, the left side of the rib plate is 1800mm high and the bottom surface is 1600mm long. It is connected to the inclined surface and the bottom surface by a 1 / 4 circular curved surface. The two ends of the curved surface are transitioned by horizontal and vertical sections respectively. The width of the horizontal section is the same as the depth of the groove 8 of the vertical plate 1, and the height of the vertical section is the same as the height of the boss 16 of the bottom plate 3. The radius of the circular curved surface is 1650mm. The slope of the inclined surface of the rib plate 2 is the same as the slope of the inclined surface of the vertical plate 1, and the width is the same as the width of the groove 10 of the inclined surface of the vertical plate. A groove 12 is set at 1 / 3 of the distance from the right end of the rib plate 2. The length × width is 110 × 310mm. An anchor hole 2 (13-1) with a radius of 15mm is reserved in the groove 12. There are two sets of the rib plate 2 with the above features.

[0027] like Figure 5 As shown, the base plate 3 includes a flat plate 14 and a male tenon 15, which are prefabricated as a whole; the male tenon end 15 of the base plate complements and fits with the female tenon 7 of the vertical plate, and the end is provided with a rectangular boss 16 with a width × height of 200 × 150 mm; the male tenon 15 of the base plate has a pre-reserved through anchor hole 1 (11-2), which is aligned with the pre-reserved anchor hole 1 (11-1) of the vertical plate, and the flat plate has a pre-reserved through anchor hole 2 (13-2), which is aligned with the pre-reserved anchor hole 2 (13-1) of the rib plate.

[0028] Installation steps are as follows: Figure 6 , 7 As shown in Figure 8:

[0029] 1. Clean the trench to a level surface suitable for placing the base plate. Place the base plate in the trench and drill grouting holes at the positions of the first and second pre-reserved anchor holes on the base plate. The hole depth should be at least 2000mm from the bottom surface of the base plate, and the hole diameter should be 1.2 times the anchor hole diameter.

[0030] 2. Slowly hoist the upright plate to the top of the base plate, ensuring that the male and female tenons are precisely matched. Match the female tenon of the upright plate with the male tenon of the base plate. After aligning the anchor hole one of the upright plate with the anchor hole one of the base plate, insert the anchor cable. Use C30 cement grout to inject grout from the bottom of the hole until thick grout flows out of the return pipe.

[0031] 3. Hoist the rib plate to the groove of the vertical plate, adjust the position so that the inclined surface of the rib plate is completely in contact with the groove of the vertical plate, align the anchor hole of the rib plate with the anchor hole of the bottom plate, put in the anchor rod, grout with cement grout as in step 2, install the gasket, tighten the nut, and finally seal the anchor cable and anchor rod.

[0032] 4. Repeat steps 1-3 above to complete the assembly of the second module. Hoist the second module next to the first module and slowly insert its rectangular tenon into the rectangular groove of the first module. Use elastic waterproof pads to fill the gaps.

[0033] 5. Repeat steps 1-4 above to complete the horizontal continuous assembly of the retaining dam. The final effect is as follows: Figure 9 As shown;

[0034] The above embodiments are merely illustrative of the present invention and not limiting. Any equivalent substitutions, module size ratio adjustments, or optimizations of pads and connectors for special geological conditions made by those skilled in the art based on the core design shall fall within the protection scope of the claims of the present invention.

Claims

1. A lightweight, rapidly assembled prestressed debris flow retaining dam, characterized in that, include: Vertical plate, rib plate, base plate, anchor cable and anchor bolt; The upright plate includes a plate body and a female tenon disposed on the side of the plate body; the bottom plate includes a flat plate and a male tenon disposed at the end of the flat plate; the male tenon and the female tenon are complementary in shape and fit together. The rib is disposed between the upright plate and the bottom plate, one side of the rib is connected to the upright plate, and the bottom of the rib is connected to the bottom plate. The upright plate, rib plate and bottom plate are provided with corresponding reserved anchor holes. The anchor cable and anchor rod pass through the reserved anchor holes and are anchored to connect and lock the upright plate, rib plate and bottom plate into a whole.

2. The lightweight, rapid-assembly prestressed debris flow retaining dam according to claim 1, characterized in that, The upright panel includes a panel body and a tenon, which are prefabricated as a whole; the panel body is characterized by a trapezoidal lateral cross-section, wherein the back side is a vertical surface, extruded along the width direction, and two sets of grooves are provided on the inclined surface, with the groove depth being consistent along the inclined surface direction; a rectangular tenon is provided on one side of the panel body, and a rectangular groove is provided on the other side, the groove cross-section being obtained by offsetting the tenon outward by 10mm; the upright panel has a pre-reserved anchor hole, which penetrates to the tenon, with two holes forming a group, for a total of three groups.

3. A lightweight, rapidly assembled prestressed debris flow retaining dam according to claim 1, characterized in that, The rib has a sloping left side and a horizontal bottom surface. The sloping left side and the bottom surface are connected by a 1 / 4 circular curved surface. The two ends of the curved surface are transitioned by horizontal and vertical sections, respectively. The width of the horizontal section is the same as the depth of the groove in the vertical plate, and the height of the vertical section is the same as the height of the boss. The slope of the rib's sloping surface is the same as the slope of the vertical plate's sloping surface, and the width is the same as the width of the groove in the vertical plate's sloping surface. A groove is set at 1 / 3 of the distance from the right end of the rib, and two anchor holes are reserved in the groove. There are two sets of the rib with the above features.

4. A lightweight, rapidly assembled prestressed debris flow retaining dam according to claim 1, characterized in that, The base plate includes a flat plate and a male tenon, which are prefabricated as a whole; the male tenon end of the base plate complements and fits with the female tenon of the upright plate, and a rectangular boss is provided at the end; the male tenon of the base plate is reserved with an anchor hole one aligned with the upright plate, and the plate body is reserved with an anchor hole two aligned with the rib plate.

5. A lightweight, rapidly assembled prestressed debris flow retaining dam according to claim 1, characterized in that, The female tenon is based on a square, and the upper left part of its upper half is cut along the horizontal center line to form a trapezoidal cross-section that is wider at the top and narrower at the bottom; the male tenon is characterized in that the remaining part after the female tenon is cut off from the square is completely complementary to the female tenon.

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