A water diversion channel structure for a water conservancy project

By designing precast channel slab slots and connecting strips, and using a grouting system, combined with rubber waterstop rings and waterstop strips, the problems of low efficiency and high labor intensity in joint treatment during the laying of precast water channel slabs were solved, achieving rapid channel laying and improved stability.

CN224514157UActive Publication Date: 2026-07-17FUYANG YINGZHOU DISTRICT WATER CONSERVANCY CONSTR & INSTALLATION CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUYANG YINGZHOU DISTRICT WATER CONSERVANCY CONSTR & INSTALLATION CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing precast canal slab laying process has low joint treatment efficiency, high labor intensity, and construction workers need to roughen and clean on site, which affects laying efficiency and canal stability.

Method used

The design employs prefabricated channel slab slots and connecting strips, combined with grouting holes and extension cavities. It achieves rapid connection through grouting with filler material, eliminating the need for roughening. Furthermore, it forms a double sealing system with rubber waterstop rings and waterstop strips to enhance leakage performance.

Benefits of technology

It enables rapid channel laying, reduces the labor intensity of construction workers, improves the anti-leakage performance of joints, ensures channel stability, and reduces maintenance costs.

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Abstract

This utility model relates to a water diversion channel structure for a water conservancy project, belonging to the field of civil engineering technology. The water diversion channel structure includes: uniformly distributed precast channel slabs, each with a slot at one end and two grouting holes, both communicating with the slots, on its top; uniformly distributed connecting strips, fixedly connected to the other end of the precast channel slabs, with one end of each strip inserted into an adjacent slot, and a grouting channel communicating with the grouting holes on its upper surface; and a joint filler material filling the grouting holes and grouting channels. Through the slot and connecting strip insertion design of the precast channel slabs, combined with the grouting system of the grouting holes and extension cavities, the traditional roughening process is eliminated, achieving rapid connection. The joint filler material cures uniformly within the extension cavities, significantly improving the anti-leakage performance at the joints and ensuring the overall stability of the channel.
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Description

Technical Field

[0001] This utility model relates to the field of civil engineering technology, and in particular to a water diversion channel structure for water conservancy projects. Background Technology

[0002] Water diversion channels in civil engineering are crucial facilities for transporting water resources, widely used in agricultural irrigation, urban water supply, and hydropower generation. Currently, prefabricated canal slabs are commonly used for laying these channels. After the prefabricated canal slabs are laid, construction workers need to pour concrete or other grouting materials at the joints to improve the canal's resistance to leakage and its operational stability.

[0003] Currently, before filling the joints, construction workers need to roughen and clean the joint surfaces of two adjacent precast slabs to avoid insufficient bonding strength between the new and old concrete, which would create a weak impermeable layer. However, this requires on-site construction, which not only slows down the laying efficiency of the water diversion channel but also increases the labor intensity of the workers. Utility Model Content

[0004] Therefore, it is necessary to provide a water diversion channel structure for water conservancy projects to address the problems of low efficiency and high labor intensity in the existing prefabricated water channel slab laying process.

[0005] A water diversion channel structure for a water conservancy project, comprising: The precast channel slabs are evenly distributed, with a slot at one end and two grouting holes at the top, both of which are connected to the slot. The connecting strips are evenly distributed and fixedly connected to the other end of the precast channel slab. One end of the connecting strip is inserted into the adjacent slot. The upper surface of the connecting strip is provided with a grouting channel communicating with the grouting hole. A grouting material is used to fill the interior of the grouting holes and grouting channels.

[0006] In one embodiment, both grouting holes are located at the highest point of the precast channel slab, and the two grouting holes are symmetrically distributed on both sides of the concave part of the precast channel slab.

[0007] In one embodiment, the precast channel slab has an extension cavity communicating with the grouting channel inside, and the grouting material fills the inside of the extension cavity.

[0008] In one embodiment, the number of extension cavities is not less than ten, and the extension cavities are evenly distributed between two grouting holes.

[0009] In one embodiment, a rubber waterstop ring is fixedly connected to the other end of the precast channel slab, and one end of the rubber waterstop ring is in contact with the adjacent precast channel slab.

[0010] In one embodiment, the rubber waterstop ring is fitted onto the surface of the connecting strip, and the vertical cross-sectional shape of the rubber waterstop ring and the connecting strip combined together is the same as the vertical cross-sectional shape of the precast channel slab.

[0011] In one embodiment, a rubber waterstop strip is embedded at one end of the connecting strip, and one end of the rubber waterstop strip contacts the slot.

[0012] Beneficial effects The aforementioned water diversion channel structure utilizes a precast channel slab slot and connecting strip insertion design, combined with a grouting system featuring grouting holes and extension cavities, eliminating the need for traditional roughening processes and enabling rapid connection. The grouting material cures uniformly within the extension cavities, significantly improving the leak-proof performance at the joints and ensuring the overall stability of the channel.

[0013] The rubber waterstop ring and rubber waterstop strip form a dual sealing system, effectively preventing external water from entering the precast channel slab while also preventing leakage of the grouting material during injection. This design significantly enhances the channel's leak-proof performance and reduces maintenance costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram showing the connection between the two water diversion channel structures in this utility model; Figure 2 This is a cross-sectional schematic diagram of the two water diversion channels in the connected state of this utility model; Figure 3 This is an exploded view of a single water diversion channel structure in this utility model; Figure 4 This is a schematic diagram of the shape of the sealant material after curing.

[0016] Figure label: 100. Precast channel slab; 110. Slot; 120. Grouting hole; 130. Extension cavity; 200. Connecting strip; 210. Grouting channel; 300. Joint filler; 400. Rubber waterstop ring; 500. Rubber waterstop strip. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] The following is combined with Figures 1-4 This utility model describes the structure of a water diversion channel for water conservancy projects.

[0023] In one embodiment, a water diversion channel structure for a water conservancy project includes: The precast channel slabs 100 are evenly distributed. One end of the precast channel slab 100 is provided with a slot 110. The top of the precast channel slab 100 is provided with two grouting holes 120, both of which are connected to the slot 110. Evenly distributed connecting strips 200 are fixedly connected to the other end of the precast channel slab 100. One end of the connecting strip 200 is inserted into the adjacent slot 110. The upper surface of the connecting strip 200 is provided with a grouting channel 210 that communicates with the grouting hole 120. The joint filler 300 is used to fill the interior of the grouting holes 120 and the grouting channels 210. The joint filler 300 can be a concrete joint filler, which is a functional material made from cement as a base material, with added coarse and fine aggregates and admixtures. It forms a waterproof barrier and enhances durability. Its core functions include waterproofing and seepage prevention, improving adhesion and hardness, and high adaptability.

[0024] Both grouting holes 120 are located at the highest point of the precast channel slab 100, and the two grouting holes 120 are symmetrically distributed on both sides of the recess of the precast channel slab 100.

[0025] like Figure 1 and Figure 3 As shown, the precast channel slab 100 has an extension cavity 130 that communicates with the grouting channel 210. The sealant 300 is filled inside the extension cavity 130. There are no fewer than ten extension cavities 130. The extension cavities 130 are evenly distributed between the two grouting holes 120. This can increase the contact area between the sealant 300 and the precast channel slab 100 after curing, and more firmly lock the connecting strip 200 in the slot 110, thereby improving the stability of the connection between the two precast channel slabs 100.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, a rubber waterstop ring 400 is fixedly connected to the other end of the precast channel slab 100, and one end of the rubber waterstop ring 400 contacts the adjacent precast channel slab 100. The rubber waterstop ring 400 is sleeved on the surface of the connecting strip 200. The vertical cross-sectional shape of the rubber waterstop ring 400 and the connecting strip 200 combined is the same as the vertical cross-sectional shape of the precast channel slab 100. The rubber waterstop ring 400 can not only prevent external water from entering the precast channel slab 100 to improve the overall leak-proof effect of the water inlet channel, but also prevent the probability of the grouting material 300 leaking outward during the grouting process, thus achieving a good blocking effect. A rubber waterstop strip 500 is embedded in one end of the connecting strip 200, and one end of the rubber waterstop strip 500 contacts the slot 110. The rubber waterstop strip 500 can further seal the gap between the connecting strip 200 and the slot 110, thus achieving a double sealing protection effect.

[0027] Working principle: Construction workers first excavate a trench that matches the shape of the outer side of the precast slab 100 using trenching equipment, and then lay the precast slab 100 flat in the trench. When two precast slabs 100 need to be connected, the movable precast slab 100 is pushed toward the fixed precast slab 100, so that the connecting strip 200 is inserted into the slot 110 of the fixed precast slab 100 until it is in place. Then, the grouting material 300 is injected at a uniform speed through the grouting hole 120, so that it fills the grouting channel 210 and the extension cavity 130 in sequence, until it overflows from the other grouting hole 120, thus completing the grouting. After the grouting material 300 has cured, the adjacent precast slabs 100 are connected and fixed. The above process, through the coordinated design of prefabricated channel slab 100, connecting strip 200, and slot 110, eliminates the traditional roughening and cleaning procedures. The grouting material 300 is directly injected through the grouting hole 120 to fill the grouting channel 210 and extension cavity 130, achieving rapid connection and sealing. This solution significantly improves the efficiency of water diversion channel laying, reduces the labor intensity of construction workers, and ensures that the grouting material 300 is uniformly cured through integral grouting, effectively enhancing the anti-seepage performance of the joint, avoiding the formation of a weak anti-seepage layer, and ensuring the stability of channel operation.

[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0029] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A water conveyance channel structure for water engineering, characterized by comprising: include: The precast channel slabs (100) are evenly distributed. A slot (110) is provided at one end of the precast channel slabs (100). Two grouting holes (120) are provided at the top of the precast channel slabs (100) and both of them are connected to the slot (110). A uniformly distributed connecting strip (200) is fixedly connected to the other end of the precast channel plate (100). One end of the connecting strip (200) is inserted into the adjacent slot (110). The upper surface of the connecting strip (200) is provided with a grouting channel (210) communicating with the grouting hole (120). A grouting material (300) is used to fill the interior of the grouting hole (120) and the grouting channel (210).

2. The hydraulic water conveyance channel structure according to claim 1, wherein, Both grouting holes (120) are located at the highest point of the precast channel slab (100), and the two grouting holes (120) are symmetrically distributed on both sides of the recess of the precast channel slab (100).

3. The hydraulic water conveyance channel structure according to claim 1, wherein, The precast channel slab (100) has an extension cavity (130) that communicates with the grouting channel (210), and the grouting material (300) fills the interior of the extension cavity (130).

4. The hydraulic water conveyance channel structure according to claim 3, wherein The number of the extension cavities (130) is not less than ten, and the extension cavities (130) are evenly distributed between the two grouting holes (120).

5. The hydraulic water conveyance channel structure according to claim 1, wherein, A rubber waterstop ring (400) is fixedly connected to the other end of the precast channel slab (100), and one end of the rubber waterstop ring (400) is in contact with the adjacent precast channel slab (100).

6. The hydraulic water conveyance channel structure according to claim 5, wherein The rubber waterstop ring (400) is sleeved on the surface of the connecting strip (200), and the vertical cross-sectional shape of the rubber waterstop ring (400) and the connecting strip (200) combined together is the same as the vertical cross-sectional shape of the precast channel slab (100).

7. The hydraulic water conveyance channel structure according to claim 1, wherein One end of the connecting strip (200) is embedded with a rubber waterstop strip (500), and one end of the rubber waterstop strip (500) is in contact with the slot (110).