Prefabricated gate for blocking diversion tunnel

Abstract

The utility model discloses a prefabricated gate for plugging a diversion tunnel, which relates to the field of diversion tunnel construction, and aims to solve the problems of complex plugging process, difficulty in hoisting, inaccurate posture control and the like of a traditional prefabricated concrete plank, the prefabricated gate comprises a support and a water facing plate, the support comprises a rectangular frame and a plurality of support rods connected to the rectangular frame, one side of the rectangular frame is connected with the water facing plate, and the other side of the rectangular frame is connected with the water facing plate. One side of the support rod abuts against the upstream plate, the side, away from the upstream plate, of the rectangular frame is connected with water stop belts, the water stop belts are sequentially distributed along the rectangular frame to form a rectangular track, the outer circumference and the inner circumference of the rectangular frame are connected with auxiliary fixing rods respectively, and the edges of the water stop belts are bound to the auxiliary fixing rods so that the water stop belts can be attached to the rectangular frame. The first suspension clasps are installed on the periphery of the rectangular frame, stable supporting and pressure bearing are provided by the frame and the upstream plate, water flow leakage is prevented, the gate hoisting and installing process is more convenient through the design of the suspension clasps, and the construction difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to the field of diversion tunnel construction, and in particular to a prefabricated gate for sealing diversion tunnels. Background Technology

[0002] Currently, most water conservancy projects have dedicated sand discharge holes, water discharge holes, and flood discharge holes at the inlet of diversion tunnels, with gates and opening / closing devices installed in front of the holes to control the water flow.

[0003] However, in actual engineering projects, there are many difficulties in the construction of control gates, the gate chamber being located within the river channel, and the installation, maintenance, and dismantling of the hoisting mechanism. Furthermore, hoisting gates are generally not used in the design of smaller projects. When hoisting gates or mechanically activated gates are used, the gate cost accounts for a significant portion of the total investment. Gates are typically for long-term operation and use, while diversion tunnel sealing is a temporary construction project. Precast concrete slabs are often used for sealing in these projects. However, the fabrication of precast concrete slabs requires high-precision manufacturing processes; the slabs must be thin and flat, with internal reinforcement, high strength, and easy to hoist without damage. The precast slabs are also quite heavy, requiring hoisting for installation, and the construction site needs sufficient space for large machinery. According to relevant specifications, the precast slabs must reach 75% of their design strength before hoisting, resulting in a relatively long construction period. Simultaneously cutting off the water flow during sealing, and operating with water, makes it difficult to control the attitude and precise positioning of the concrete slabs under the impact and interference of the water flow, and reliable measures are lacking. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a prefabricated gate for sealing diversion tunnels. It adopts a combination structure of a frame and a water-receiving plate, and a water-stop strip is installed on the side of the frame away from the water-receiving plate to ensure the sealing between the entire gate and the diversion tunnel wall. The frame and water-receiving plate provide stable support and pressure resistance, preventing water leakage. The design of the lifting buckle makes the hoisting and installation process of the gate more convenient and reduces the construction difficulty.

[0005] To achieve the above objectives, the following technical solution is adopted:

[0006] A prefabricated gate for sealing a diversion tunnel includes a support and a water-receiving plate. The support includes a rectangular frame and multiple support rods connected to the rectangular frame. One side of the rectangular frame is connected to the water-receiving plate, and one side of the support rods abuts against the water-receiving plate. A water-stop strip is connected to the side of the rectangular frame away from the water-receiving plate. The water-stop strips are distributed sequentially along the rectangular frame to form a rectangular track. Auxiliary fixing rods are connected to the outer and inner peripheries of the rectangular frame, respectively. The edge of the water-stop strip is tied to the auxiliary fixing rods so that the water-stop strip fits the rectangular frame. A first lifting buckle is installed on the outer periphery of the rectangular frame.

[0007] Furthermore, the rectangular frame includes side frame rods and horizontal frame rods. The ends of two parallel horizontal frame rods are connected by side frame rods to form a rectangular structure, and the support rod is located within the rectangular frame.

[0008] Furthermore, the two ends of the support rod are respectively connected to the horizontal frame rod, and multiple support rods are distributed parallel to the side frame rod.

[0009] Furthermore, the support rod is an H-beam, and the rectangular frame is formed by splicing together multiple channel steels.

[0010] Furthermore, the flange plate on one side of the H-beam is attached to and connected to the water-facing plate, and the flange plate on one side of the channel steel is attached to and connected to the water-facing plate.

[0011] Furthermore, the auxiliary fixing rod installed on the inner periphery of the rectangular frame is located in the groove of the channel steel, and the edge of the waterstop near the inner periphery of the rectangular frame is bent into the groove and connected to the auxiliary fixing rod.

[0012] Furthermore, the waterstop is a steel-edged waterstop, and the edge binding of the waterstop is fixed to the auxiliary fixing rod.

[0013] Furthermore, the first hook is fixed to the top of the rectangular frame to cooperate with the external lifting device.

[0014] Furthermore, a second hook is fixed to the bottom of the rectangular frame, and the second hook extends outward from the water-facing plate along a direction perpendicular to the plane where the water-facing plate is located.

[0015] Furthermore, the first and second hooks are provided in multiples and are distributed at intervals.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This utility model addresses the problems of complex sealing processes, difficult hoisting, and inaccurate posture control associated with traditional precast concrete slabs. It adopts a combined structure of a frame and a water-facing plate, and installs a water-stop strip on the side of the frame away from the water-facing plate to ensure the sealing between the entire gate and the diversion tunnel wall. The frame and water-facing plate provide stable support and pressure resistance, preventing water leakage. The design of the lifting buckle makes the hoisting and installation process of the gate more convenient and reduces the construction difficulty. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a prefabricated gate used for sealing a diversion tunnel in an embodiment of this utility model.

[0019] Figure 2 This is a cross-sectional schematic diagram of the prefabricated gate used for sealing the diversion tunnel in an embodiment of this utility model.

[0020] Figure 3 This is a schematic diagram of the waterstop connecting the rectangular frame in an embodiment of this utility model.

[0021] Labeling instructions (in order of first appearance): 1. Water-facing plate; 2. Support rod; 3. Horizontal frame rod; 4. Side frame rod; 5. First hanging buckle; 6. Second hanging buckle; 7. Waterstop strip; 8. Auxiliary fixing rod; 9. Binding piece. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] Sealing diversion tunnels is a temporary construction method, traditionally using precast concrete slabs. However, this method has high technical requirements, a complex manufacturing process, and many difficulties in hoisting and installation. Therefore, this embodiment provides a precast gate for sealing diversion tunnels. A rectangular frame supports a water-receiving plate 1 and a waterstop 7 is installed. The water-receiving plate 1, combined with the rectangular frame, provides stable support and sealing. The waterstop 7 seals the rectangular frame and the edge of the diversion tunnel opening, reducing water leakage and meeting the sealing requirements of the diversion tunnel. The structure is simple, easy to install, effectively controls water flow, and has a relatively low cost.

[0024] like Figure 1 As shown, the prefabricated gate used for sealing the diversion tunnel is mainly composed of a support, a water-receiving plate 1, and a water-stopping strip 7. The support includes a rectangular frame and multiple support rods 2 connected to the rectangular frame, forming a stable support structure.

[0025] One side of the rectangular frame is connected to the water-receiving plate 1, which is used to directly face the water flow of reservoirs, rivers, etc., and plays a blocking role; one side of the support rod 2 abuts against the water-receiving plate 1 to enhance the stability of the water-receiving plate 1 and prevent the water-receiving plate 1 from being excessively deformed due to water pressure. The side of the rectangular frame away from the water-receiving plate 1 is connected to a water-stopping strip 7. The water-stopping strip 7 is distributed along the rectangular frame to form a rectangular track. The water-stopping strip 7 is used to ensure the sealing between the gate and the diversion tunnel wall and prevent water leakage.

[0026] like Figure 3 As shown, auxiliary fixing rods 8 are connected to the outer and inner perimeters of the rectangular frame, respectively. The edge of the waterstop 7 is tied to the auxiliary fixing rods 8 to ensure that the waterstop 7 fits snugly against the rectangular frame. A first lifting buckle 5 is installed on the outer perimeter of the rectangular frame to facilitate the hoisting and installation of the gate.

[0027] For the structure of a rectangular frame, such as Figure 1As shown, the rectangular frame consists of side frame rods 4 and horizontal frame rods 3. Two parallel horizontal frame rods 3 are connected at both ends by the side frame rods 4, forming a rectangular frame structure. This not only provides stable support but also ensures the overall rectangular shape of the gate, adapting to the shape of the diversion tunnel opening. The gate is prefabricated according to the diversion tunnel opening conditions, similar in principle to interior door installation in decoration and renovation projects; dimensions are measured first, and then the gate is customized for installation.

[0028] like Figure 1 and Figure 2 As shown, the support rod 2 is located inside the rectangular frame, with its two ends connected to the horizontal frame rods 3, forming further support for the rectangular frame. Multiple support rods 2 are distributed parallel to the side frame rods 4, ensuring the stability and strength of the gate structure. The rectangular frame is the surrounding support component of the prefabricated gate used for sealing the diversion tunnel, uniformly transferring the water pressure borne by the water-facing plate 1 to the surrounding walls of the diversion tunnel; the support rods 2 are mainly the connecting components for distributing the force on the water-facing plate 1, evenly arranged behind the water-facing plate 1, transferring the force on the water-facing surface to the rectangular frame.

[0029] Specifically, the support rod 2 is made of H-beams, which have excellent mechanical properties and load-bearing capacity, meeting the requirements of the gate in complex water flow environments. The rectangular frame is formed by splicing multiple channel steels, and the groove design of the channel steels facilitates the installation and fixing of other components. The water-receiving plate 1 is a water-blocking component that directly bears water pressure, forming a closed water-stopping layer, and can be made of steel plate.

[0030] In this embodiment, based on the designed size of the diversion tunnel and the actual construction conditions of the diversion tunnel, on-site processing is carried out. The steel structure preparation time is short, the overall weight is light, the width is 3.4m, the height is 2.2m, and there are a total of 5 pieces. The prefabricated gate used for diversion tunnel sealing is welded into a structural frame by No. 10 H-beams and No. 10 channel steel. The water-facing plate 1 is made of 3mm thick steel plate and welded. All contact points on the inner side of the water-facing plate 1 are fixedly welded to the rectangular frame to ensure that the prefabricated gate used for diversion tunnel sealing is flat when it is installed in close contact with the diversion tunnel. The weight of a single prefabricated gate used for diversion tunnel sealing is about 320kg.

[0031] Specifically, the flange plate on one side of the H-beam is attached to and connected to the water-facing plate 1, and a firm connection between the water-facing plate 1 and the support rod 2 is ensured through welding or other connection methods. Similarly, the flange plate on one side of the channel steel is also attached to and connected to the water-facing plate 1, enhancing the overall integrity between the rectangular frame and the water-facing plate 1.

[0032] When installing into the diversion tunnel, embedded parts are set on the inner wall of the diversion tunnel. The embedded parts are independent structures. During processing, channel steel and reinforcing steel are welded together to form the embedded parts. During installation, the reinforcing steel of the embedded parts is welded to the reinforcing steel of the diversion tunnel to facilitate the fixing of the embedded parts. The channel steel serves as a connecting structure for fixing the prefabricated gate used for diversion tunnel sealing. It is welded to the installation reinforcing steel fixed on the prefabricated gate used for diversion tunnel sealing to facilitate the fixing of the prefabricated gate used for diversion tunnel sealing and prevent the prefabricated gate used for diversion tunnel sealing from tilting upstream.

[0033] The prefabricated gate used for sealing the diversion tunnel is lightweight and can be adjusted appropriately after on-site installation to reduce seepage and achieve the sealing effect. After the prefabricated gate is manufactured, the water-facing plate 1 and the four sides of the rectangular frame are welded and processed to fit tightly. During installation, rubber waterstops 7 are installed around the prefabricated gate and the diversion tunnel. The external pressure and water flow pressure are used to ensure that the prefabricated gate and the diversion tunnel fit tightly together, thereby achieving the purpose of effective water stoppage.

[0034] Understandably, expansion sealing strips can be pre-embedded around the diversion tunnel to improve the water-stopping effect. The precast gates used for sealing the diversion tunnel, serving as templates for concrete pouring in the sealing section, significantly shorten the construction period and save costs; this approach is worth promoting and learning from in similar projects. The original design of using precast concrete slabs for diversion tunnel sealing was eliminated, reducing the prefabrication time of the concrete slabs and avoiding construction deviations during diversion tunnel concrete pouring and precast concrete slab installation that could lead to sealing failure. The precast gates used for diversion tunnel sealing, after design optimization, can both impede water after sealing and serve as templates for concrete pouring, successfully achieving the goal of diversion tunnel sealing.

[0035] like Figure 3 As shown, the auxiliary fixing rod 8 installed on the inner circumference of the rectangular frame is located within the groove of the channel steel, which not only saves space but also ensures the stability of the auxiliary fixing rod 8. The edge of the waterstop 7 near the inner circumference of the rectangular frame is bent into the groove and connected to the auxiliary fixing rod 8. A tight fit between the waterstop 7 and the rectangular frame is ensured by binding clips 9 or other fixing methods. The binding clips 9 can be made of binding wire, cable ties, iron wire, etc.

[0036] The waterstop 7 uses steel-edged waterstop 7, which has excellent water resistance and sealing performance, and can ensure the sealing effect of the gate when blocking the diversion tunnel.

[0037] The first lifting buckle 5 is fixed to the top of the rectangular frame and is used to lift the gate in conjunction with external lifting equipment. This facilitates the handling and installation of the gate on the construction site. At the same time, a second lifting buckle 6 is fixed to the bottom of the rectangular frame. The second lifting buckle 6 extends outward from the water-facing plate 1 along a plane perpendicular to the water-facing plate 1, which not only increases the number of lifting points but also improves the stability and safety during the lifting process.

[0038] Multiple first lifting buckles 5 and second lifting buckles 6 are provided and spaced apart. This design ensures the balance and stability of the gate during hoisting and prevents deformation or damage caused by excessive force at a single point.

[0039] By using H-beams and channel steel as the materials for the support rods 2 and the rectangular frame, and through a rational structural design, the stability and load-bearing capacity of the gate in complex water flow environments are ensured. The use of steel-edged waterstops 7, and the use of auxiliary fixing rods 8 and binding components 9, ensures a tight fit between the waterstops 7 and the rectangular frame, improving the gate's sealing performance. The installation of multiple first lifting buckles 5 and second lifting buckles 6, spaced apart, enhances the gate's balance and stability during hoisting, facilitating on-site handling and installation. Through rational structural design and material selection, the stability and load-bearing capacity of the gate in complex water flow environments are ensured, extending its service life and safety.

[0040] By setting multiple lifting buckles and distributing them at intervals, the balance and stability of the gate during the hoisting process are improved, the handling and installation process on the construction site is simplified, and the construction difficulty and cost are reduced.

[0041] The specific embodiments of the utility model have been described in detail above, but they are only examples, and the utility model is not limited to the specific embodiments described above. For those skilled in the art, any equivalent modifications or substitutions to the utility model are also within the scope of the utility model. Therefore, all equivalent transformations, modifications, and improvements made without departing from the spirit and principles of the utility model should be covered within the scope of the utility model.

Claims

1. A prefabricated gate for sealing diversion tunnels, characterized in that, The system includes a bracket and a water-receiving plate. The bracket includes a rectangular frame and multiple support rods connected to the rectangular frame. One side of the rectangular frame is connected to the water-receiving plate, and one side of the support rods abuts against the water-receiving plate. A water-stop strip is connected to the side of the rectangular frame away from the water-receiving plate. The water-stop strips are distributed sequentially along the rectangular frame to form a rectangular track. Auxiliary fixing rods are connected to the outer and inner perimeters of the rectangular frame, respectively. The edge of the water-stop strip is tied to the auxiliary fixing rods so that the water-stop strip fits the rectangular frame. A first hanging buckle is installed on the outer perimeter of the rectangular frame.

2. The prefabricated gate for sealing diversion tunnels as described in claim 1, characterized in that, The rectangular frame includes side frame rods and horizontal frame rods. The ends of two parallel horizontal frame rods are connected by side frame rods to form a rectangular structure. The support rod is located within the rectangular frame.

3. The prefabricated gate for sealing diversion tunnels as described in claim 2, characterized in that, The two ends of the support rod are respectively connected to the horizontal frame rod, and multiple support rods are distributed parallel to the side frame rod.

4. The prefabricated gate for sealing a diversion tunnel as described in claim 1, 2, or 3, characterized in that, The support rod is an H-beam, and the rectangular frame is formed by splicing together multiple channel steels.

5. The prefabricated gate for sealing diversion tunnels as described in claim 4, characterized in that, The flange plate on one side of the H-beam is attached to and connected to the water-facing plate, and the flange plate on one side of the channel steel is attached to and connected to the water-facing plate.

6. The prefabricated gate for sealing a diversion tunnel as described in claim 5, characterized in that, The auxiliary fixing rod installed on the inner periphery of the rectangular frame is located in the groove of the channel steel, and the edge of the waterstop near the inner periphery of the rectangular frame is bent into the groove and connected to the auxiliary fixing rod.

7. The prefabricated gate for sealing a diversion tunnel as described in claim 1, characterized in that, The waterstop is a steel-edged waterstop, and the edge binding of the waterstop is fixed to the auxiliary fixing rod.

8. The prefabricated gate for sealing a diversion tunnel as described in claim 1, characterized in that, The first hook is fixed to the top of the rectangular frame and is used to cooperate with external lifting equipment.

9. The prefabricated gate for sealing a diversion tunnel as described in claim 1 or 8, characterized in that, A second hook is fixed to the bottom of the rectangular frame, and the second hook extends out of the water-facing plate along a direction perpendicular to the plane where the water-facing plate is located.

10. The prefabricated gate for sealing a diversion tunnel as described in claim 9, characterized in that, The first and second hooks are provided in multiples and are distributed at intervals.

Images