A WES overflow surface high-strength concrete formwork

Abstract

This utility model discloses a high-strength concrete formwork for WES overflow surfaces, relating to the field of hydraulic engineering. It includes an operating platform vehicle, a dam overflow surface, and a controller. A finishing platform is rotatably connected to the rear end of the operating platform vehicle, and a guardrail is fixedly installed on the upper surface of the operating platform vehicle. The operating platform vehicle and finishing platform facilitate the one-time completion of concrete vibration and finishing of the overflow surface, reducing the use of other formwork. Through integrated formwork construction, it effectively reduces many construction quality problems caused by increased construction joints and inconsistent pouring quality due to layering and segmentation. This not only increases the service life of the dam but also reduces the frequency of reduced efficiency due to maintenance during use. While ensuring construction quality, it also reduces the construction time increased by the number of joints and formwork required for layering and segmentation, thus improving overall work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of water conservancy engineering technology, specifically to a high-strength concrete formwork for WES overflow surface. Background Technology

[0002] The spillway is a curved structure in a spillway that guides floodwaters downstream. It is typically located at the dam crest or in the spillway channel. Through a specific curved design, it achieves a smooth transition of water flow and energy dissipation. During dam construction, the quality of the spillway construction determines the dam's efficiency and service life. Construction quality is particularly important during power plant construction.

[0003] The current overflow surface construction requires dismantling the formwork in sections and carrying out formwork flipping and template construction. This not only increases the construction time due to the increased number of joints and formwork, but also causes many construction quality problems due to the increased number of construction joints and inconsistent pouring quality, which affects the service life of the dam. Utility Model Content

[0004] The purpose of this utility model is to provide a high-strength concrete template for WES overflow surface in order to solve the above problems, as detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This utility model provides a high-strength concrete template for WES overflow surface, including an operating platform vehicle, a dam overflow surface, and a controller. The operating platform vehicle has a rotatable finishing platform rotatably connected to its rear end. A guardrail is fixedly installed on the upper surface of the operating platform vehicle. The guardrail is provided with several adjustment structures for adjusting the tilt angle of the finishing platform. Several vibration holes are opened on the operating platform vehicle. Both ends of the operating platform vehicle are provided with lifting components for moving it on the dam overflow surface.

[0006] Preferably, two travel tracks are fixedly connected to the upper surface of the dam overflow surface, and track wheels for moving on the travel tracks are fixedly installed on both sides of the operating platform vehicle.

[0007] Preferably, the adjustment structure includes a first rod and a second rod, which are rotatably connected to the end of the grouting platform and the upper end of the guardrail, respectively. A turnbuckle is provided between the first rod and the second rod to adjust the distance between them.

[0008] Preferably, the turnbuckle includes a strip ring plate rotatably connected to one end of the rod, and a threaded sleeve is fixedly connected to the other end of the strip ring plate. The end of the second rod is provided with a thread that is threadedly connected to the threaded sleeve.

[0009] Preferably, the vibrating holes are evenly distributed on the surface of the operating platform vehicle, and each vibrating hole is fixedly connected with several inclined guide tubes, and the several inclined guide tubes are evenly divided around the center of the vibrating hole.

[0010] Preferably, the lifting assembly includes a brake motor fixedly installed at the end of the operating platform vehicle. An extension shaft is fixedly connected to the output shaft of the brake motor. Two take-up reels are rotatably connected to the extension shaft, and a connecting rope is fixedly connected to each take-up reel. A lifting attachment point for detachable connection with the connecting rope is provided on the dam overflow surface. A partition plate fixedly connected to the extension shaft is provided on the same side of the two take-up reels. The end of the partition plate is provided with a plug-in structure for fixing the take-up reels.

[0011] Preferably, several sets of hanging rods are fixedly connected to the overflow surface of the dam, with each set consisting of two hanging rods located on both sides of the overflow surface of the dam, and the ends of the connecting ropes are fixedly connected to hanging rings that are compatible with the hanging rods.

[0012] Preferably, the controller is fixedly installed in the middle of the guardrail, and the output end of the controller is electrically connected to the input ends of the two brake motors.

[0013] Preferably, the plug-in structure includes a bolt hole that passes through the end of the partition, a bolt threaded into the bolt hole, and a plurality of positioning holes for plugging into the side wall of the take-up reel.

[0014] Preferably, a second guardrail is fixedly connected to the upper surface of the smearing platform.

[0015] The beneficial effects are: By using the platform truck and finishing platform, the concrete construction, vibration, and finishing of the overflow surface can be completed in one go, reducing the use of other formwork. The integrated formwork construction can effectively reduce many construction quality problems caused by the increase in construction joints and inconsistent pouring quality due to layering and segmentation. This not only increases the service life of the dam, but also reduces the frequency of reduced efficiency due to maintenance during the use of the dam. While ensuring construction quality, it can also reduce the construction time caused by the increase in joints and formwork due to layering and segmentation, thereby improving the overall work efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the operating platform vehicle of this utility model; Figure 3 This is a split perspective view of the take-up reel of this utility model; Figure 4 This is a perspective view of the adjustment structure of this utility model; Figure 5 This is a partial bottom-view perspective view of the operating platform vehicle of this utility model.

[0018] The annotations in the attached figures are explained as follows: 1. Operating platform vehicle; 2. Finishing platform; 3. Lifting assembly; 301. Extension shaft; 302. Partition plate; 303. Take-up reel; 304. Connecting rope; 305. Hanging ring; 306. Brake motor; 4. Adjustment structure; 401. Rod body one; 402. Strip ring plate; 403. Threaded sleeve; 404. Rod body two; 5. Insertion structure; 501. Bolt hole; 502. Bolt; 503. Positioning hole; 6. Track wheel; 7. Traveling track; 8. Hanging rod; 9. Vibration hole; 10. Guardrail one; 11. Guardrail two; 12. Controller; 13. Dam overflow surface; 14. Inclined guide pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] See Figures 1-5As shown, this utility model provides a high-strength concrete formwork for a WES overflow surface, including an operating platform vehicle 1, a dam overflow surface 13, and a controller 12. A finishing platform 2 is rotatably connected to the rear end of the operating platform vehicle 1. A guardrail 10 is fixedly installed on the upper surface of the operating platform vehicle 1. The guardrail 10 has several adjustment structures 4 for adjusting the tilt angle of the finishing platform 2. Several vibration holes 9 are provided on the operating platform vehicle 1. Both ends of the operating platform vehicle 1 are equipped with mechanisms to move it on the dam overflow surface 13. The lifting component 3 adds counterweights to the operating platform vehicle 1 or installs temporary reinforcements at the front end to prevent overturning and concrete bulging. The spillway dam surface curve is a key structural component of the spillway dam, which has both water blocking and water discharge functions. The curve consists of three parts: the top curved section, the middle straight section, and the lower reverse arc section. The top section often uses WES curves or orifice jet curves to optimize the discharge capacity. The middle straight section needs to be consistent with the slope of the downstream dam surface of the non-overflow dam (this can be omitted for low dams). The lower reverse arc section connects to the energy dissipation facilities through a circular arc curve.

[0021] Specifically, two travel tracks 7 are fixedly connected to the upper surface of the dam overflow surface 13. Track wheels 6 for moving on the travel tracks 7 are fixedly installed on both sides of the operating platform vehicle 1, which allows the operating platform vehicle 1 to smoothly rise along a certain arc on the dam overflow surface 13, ensuring the curvature of the dam overflow surface 13.

[0022] Reference Figure 4 As shown, the adjustment structure 4 includes rod 1 401 and rod 2 404. Rod 1 401 and rod 2 404 are rotatably connected to the end of the finishing platform 2 and the upper end of the guardrail 10, respectively. A turnbuckle is provided between rod 1 401 and rod 2 404 to adjust the distance between them. The turnbuckle includes a strip ring plate 402 rotatably connected to the end of rod 1 401. The other end of the strip ring plate 402 is fixedly connected to a threaded sleeve 403. The end of rod 2 404 is threaded and threaded to the threaded sleeve 403. By adjusting the turnbuckles in the adjustment structure 4, the strip ring plate 402 is rotated to rotate at the end of rod 1 401. The threaded sleeve 403 is threaded to the thread on rod 2 404, thereby causing the distance between rod 1 401 and rod 2 404 to change, so that the finishing platform 2 fits the surface of the pouring overflow, which is convenient for subsequent mold pulling.

[0023] Reference Figure 5As shown, several vibration holes 9 are evenly distributed on the surface of the operating platform vehicle 1. Several inclined guide tubes 14 are fixedly connected to each vibration hole 9, and the inclined guide tubes 14 are evenly divided around the center of the vibration hole 9. The flexible shaft vibrator of the concrete vibrator can be inserted through the evenly divided inclined guide tubes 14 and extended and guided to better vibrate the concrete poured at all parts of the bottom of the operating platform vehicle 1. It is worth mentioning that the position of the inclined guide tubes 14 shown in the figure is only a schematic diagram. In actual application, the bottom surface of the operating platform vehicle 1 should be flat and without any protrusion of the tubes to ensure the shaping effect of the template.

[0024] Reference Figure 3As shown, the lifting assembly 3 includes a brake motor 306 fixedly installed at the end of the operating platform vehicle 1. An extension shaft 301 is fixedly connected to the output shaft of the brake motor 306. Two take-up reels 303 are rotatably connected to the extension shaft 301, and a connecting rope 304 is fixedly connected to each take-up reel 303. A lifting attachment point for detachable connection with the connecting rope 304 is provided on the dam overflow surface 13. A partition 302 fixedly connected to the extension shaft 301 is provided on the same side of each of the two take-up reels 303. The end of the partition 302 is provided with a plug-in structure 5 for fixing the take-up reel 303. The structure 5 includes a bolt hole 501 extending through the end of the partition plate 302, with a bolt 502 threaded into the bolt hole 501. Several positioning holes 503 are provided on the side wall of the take-up reel 303 for insertion into the bolt 502. Several sets of hanging rods 8 are fixedly connected to the dam overflow surface 13, with two hanging rods in each set located on both sides of the dam overflow surface 13. A hanging ring 305, compatible with the hanging rod 8, is fixedly connected to the end of the connecting rope 304. By loosening one of the take-up reels 303 to allow it to rotate freely, pulling the hanging ring 305 at that location causes the connecting rope 304 to unwind, allowing the hanging ring 305 to... The first hanging rod 8 is attached and the take-up reel 303 is fixed to the partition plate 302. When the wire is to be pulled and finished, the brake motor 306 is started to drive the extension shaft 301 and the take-up reel 303 to rotate. At this time, the connecting rope 304 is wound on the take-up reel 303, which can drive the operating platform trolley 1 to rise on the two travel tracks 7. When the operating platform trolley 1 rises to the first hanging rod 8, the other take-up reel 303 is released, and the hanging ring 305 at the end of the connecting rope 304 at this time is pulled to the second hanging rod 8 for fixation. Then the take-up reel 303 is fixed to the partition plate 302, and the first hanging rod 8 is fixed. Once the hanging ring 305 is removed, the brake motor 306 can be controlled to rotate again, driving the operating platform trolley 1 to move upward again to complete the subsequent formwork construction. The brake motor 306 can provide a braking effect when the motor stops rotating, preventing the motor shaft from loosening and ensuring that the operating platform trolley 1 is stably suspended on the sloping track. When it is necessary to fix the take-up reel 303 to the partition plate 302, rotate the bolt 502 in the bolt hole 501 until its end is inserted into the positioning hole 503, which will complete the connection and fixation between the take-up reel 303 and the partition plate 302, so that the take-up reel 303 can rotate with the partition plate 302 and the extension shaft 301.

[0025] Specifically, the controller 12 is fixedly installed in the middle of the guardrail 10, and the output end of the controller 12 is electrically connected to the input end of the two brake motors 306. The controller 12 can control the two brake motors 306 to operate simultaneously. The synchronous operation of the two motors is existing technology and can be achieved by simple programming by those skilled in the art, so it will not be described in detail here. The synchronous operation of the two brake motors 306 can improve the synchronization when the operating platform vehicle 1 is lifted.

[0026] As an optional implementation, a guardrail 21 is fixedly connected to the upper surface of the troweling platform 2, which can improve the safety when operating on the troweling platform 2.

[0027] During construction, the travel track 7 is fixed in a curved shape to the surface of the dam overflow surface 13. Then, the operating platform vehicle 1 is installed on the two travel tracks 7, and a counterweight is installed on the surface of the operating platform vehicle 1. One of the take-up reels 303 is loosened to allow it to rotate freely. Pulling the hanging ring 305 at this location causes the connecting rope 304 to unwind, allowing the hanging ring 305 to engage with the first hanging rod 8. The take-up reel 303 is then fixed to the partition plate 302. Concrete is transported to the receiving platform at the top of the dam by a concrete mixer truck and then poured into the formwork via a chute or trailer pump. The pouring sequence is symmetrical and even from both ends of the formwork towards the middle, poured in layers, with each layer controlled to a thickness of 20-30cm. A φ70 flexible shaft vibrator is inserted into the vibration hole 9 for vibration (this is existing technology and will not be described further). Vibration is stopped when the concrete no longer sinks, no air bubbles overflow, and the surface becomes slurry. The concrete strength reaches 0.1-0.2MPa (it leaves an indentation when pressed by hand, but...). When the concrete is no longer sticky, adjust the turnbuckles in the adjustment structure 4 to change the distance between rod 1 401 and rod 2 404, so that the finishing platform 2 fits the surface of the pouring overflow. Start the brake motor 306 to drive the extension shaft 301 and the take-up reel 303 to rotate. At this time, the connecting rope 304 is wound on the take-up reel 303, which can drive the operating platform 1 to rise on the two travel tracks 7. After each slide, use the finishing platform 2 to finish the surface of the demolded concrete and eliminate air bubbles. When the operating platform 1 rises to the first hanging rod 8, release the other take-up reel 303 and pull the hanging ring 305 at the end of the connecting rope 304 to the second hanging rod 8 for fixation. Then fix the take-up reel 303 to the partition plate 302, and then control the brake motor 306 to rotate again to drive the operating platform 1 to move up again to complete the subsequent formwork construction.

[0028] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A high-strength concrete formwork for WES overflow surface, characterized in that: The system includes an operating platform vehicle (1), a dam overflow surface (13), and a controller (12). The operating platform vehicle (1) is rotatably connected to a troweling platform (2) at its rear end. A guardrail (10) is fixedly installed on the upper surface of the operating platform vehicle (1). The guardrail (10) is provided with several adjustment structures (4) for adjusting the tilt angle of the troweling platform (2). Several vibration holes (9) are opened on the operating platform vehicle (1). Both ends of the operating platform vehicle (1) are provided with lifting components (3) for moving it on the dam overflow surface (13).

2. The WES overflow surface high-strength concrete formwork according to claim 1, characterized in that: Two travel tracks (7) are fixedly connected to the upper surface of the dam overflow surface (13), and track wheels (6) for moving on the travel tracks (7) are fixedly installed on both sides of the operating platform vehicle (1).

3. A high-strength concrete formwork for WES overflow surface according to claim 1, characterized in that: The adjustment structure (4) includes a first rod (401) and a second rod (404). The first rod (401) and the second rod (404) are rotatably connected to the end of the grouting platform (2) and the upper end of the guardrail (10), respectively. A turnbuckle is provided between the first rod (401) and the second rod (404) to adjust the distance between them.

4. A high-strength concrete formwork for WES overflow surface according to claim 3, characterized in that: The turnbuckle includes a strip ring plate (402) rotatably connected to the end of the first rod (401), and a threaded sleeve (403) is fixedly connected to the other end of the strip ring plate (402). The end of the second rod (404) is provided with a thread that is threadedly connected to the threaded sleeve (403).

5. A high-strength concrete formwork for WES overflow surface according to claim 1, characterized in that: Several vibration holes (9) are evenly distributed on the surface of the operating platform vehicle (1). Several inclined guide tubes (14) are fixedly connected in each vibration hole (9), and the several inclined guide tubes (14) are evenly divided around the center of the vibration hole (9).

6. A high-strength concrete formwork for WES overflow surface according to claim 1, characterized in that: The lifting assembly (3) includes a brake motor (306) fixedly installed at the end of the operating platform vehicle (1). An extension shaft (301) is fixedly connected to the output shaft of the brake motor (306). Two take-up reels (303) are rotatably connected to the extension shaft (301), and a connecting rope (304) is fixedly connected to each take-up reel (303). A lifting attachment point for detachably connecting to the connecting rope (304) is provided on the dam overflow surface (13). A partition plate (302) fixedly connected to the extension shaft (301) is provided on the same side of the two take-up reels (303). The end of the partition plate (302) is provided with a plug-in structure (5) for fixing the take-up reel (303).

7. A high-strength concrete formwork for WES overflow surface according to claim 6, characterized in that: Several sets of hanging rods (8) are fixedly connected to the spillway surface (13) of the dam. Each set of hanging rods (8) consists of two rods located on both sides of the spillway surface (13). The end of the connecting rope (304) is fixedly connected to a hanging ring (305) that is compatible with the hanging rod (8).

8. A high-strength concrete formwork for WES overflow surface according to claim 6, characterized in that: The controller (12) is fixedly installed in the middle of the guardrail (10), and the output end of the controller (12) is electrically connected to the input end of the two brake motors (306).

9. A high-strength concrete formwork for WES overflow surface according to claim 6, characterized in that: The plug-in structure (5) includes a bolt hole (501) that passes through the end of the partition (302), and a bolt (502) is threaded into the bolt hole (501). The side wall of the take-up reel (303) is provided with a number of positioning holes (503) that are plugged into the bolt (502).

10. A high-strength concrete formwork for WES overflow surface according to claim 1, characterized in that: The upper surface of the smearing platform (2) is fixedly connected to a guardrail (11).

Images