Stilling pool repairing structure

Abstract

The utility model discloses a stilling pool repairing structure, relates to the field of building repairing, and aims to solve the problem of weak impact resistance and erosion resistance caused by poor relevance between the repairing structure and a stilling pool in the existing stilling pool repairing process, the stilling pool repairing structure is provided with an anchoring component, the anchoring component is anchored into the stilling pool wall through an anchor bolt, and then a pull rod is connected with a repairing panel and penetrates through a repairing base body; the repairing structure and the stilling pool wall are firmly connected, the overall relevance is enhanced, the fixing piece connected with the repairing panel stretches into the repairing base body, the connecting tightness degree between the repairing panel and the repairing base body is increased, the adhesive force is improved, and the risk of falling off after long-time use is reduced; the repairing panel covers the repairing base body and blocks the opening of the damaged area, and the repairing panel serves as a part directly bearing water flow impact and erosion and replaces the repairing base body to directly bear water flow impact, so that the impact resistance and erosion resistance of the repairing structure are improved, and the durability is improved.

Description

Technical Field

[0001] This utility model relates to the field of structure repair, and in particular to a repair structure for stilling basins. Background Technology

[0002] Stilling basins are important energy dissipation facilities in hydraulic engineering projects. They are usually located downstream of structures such as sluice gates and spillways to dissipate the kinetic energy of water flow and reduce scouring of the downstream riverbed. Due to long-term impact and erosion from high-speed water flow, the bottom slab and sidewalls of stilling basins are prone to cracks, spalling, and other damage, affecting their energy dissipation effect and structural safety.

[0003] Currently, when repairing damaged areas of stilling basins, there are issues with the poor correlation between the repair structure and the stilling basin. The adhesion between the repair structure and the stilling basin is insufficient, and it is prone to detachment after prolonged use. At the same time, the repair structure is located in a position with strong impact and erosion, and its own impact and erosion resistance is poor, making it easy to peel off and be damaged again due to impact and erosion, resulting in poor durability. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a stilling basin repair structure. This structure uses anchor bolts to secure the repair panel to the stilling basin wall, and then connects it to the repair substrate using tie rods, ensuring a firm connection between the repair structure and the stilling basin wall. This enhances the overall cohesion. The fasteners connecting the repair panel extend into the repair substrate, increasing the tightness of the connection between the panel and the substrate, improving adhesion, and reducing the risk of detachment after prolonged use. The repair panel covers the repair substrate and seals the openings in the damaged area. As the part directly bearing the impact and erosion of water flow, it replaces the substrate in directly bearing the water flow impact, thereby improving the impact and erosion resistance of the repair structure and enhancing its durability.

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

[0006] A stilling basin repair structure, comprising:

[0007] The repair substrate is filled into the damaged area of ​​the stilling basin. The repair substrate has a substrate bottom layer that is attached to the inner wall of the damaged area of ​​the stilling basin.

[0008] The repair panel covers the repair substrate and seals the opening in the damaged area of ​​the stilling basin. The repair panel is connected to a fastener that extends into the repair substrate.

[0009] The anchoring assembly includes an anchor bolt and a tie rod. One end of the tie rod is connected to the repair panel, and the other end passes through the repair substrate to connect to the anchor bolt. The anchor bolt is anchored into the wall of the stilling basin and fixed in place.

[0010] Preferably, the repair substrate further includes a substrate middle layer and a substrate surface layer, with the substrate bottom layer, substrate middle layer and substrate surface layer distributed sequentially, and the substrate surface layer adhering to the repair panel.

[0011] Preferably, the surface layer of the matrix is ​​made of fiber-reinforced composite non-dispersible concrete, the middle layer of the matrix is ​​made of non-dispersible polymer concrete, and the bottom layer of the matrix is ​​made of polymer-modified epoxy mortar.

[0012] Preferably, the repair panel is a steel plate, and the steel plate is flush with the opening of the damaged area of ​​the stilling basin.

[0013] Preferably, multiple fasteners are provided, with one end of the fastener fixedly installed on one side of the repair panel and the other end protruding into the repair substrate.

[0014] Preferably, a fixing seat is installed on one side of the repair panel, one end of the pull rod is connected to the fixing seat, and the other end is connected to the anchor bolt through a nut.

[0015] Preferably, the anchor is a chemical anchor, and the repair substrate has a channel through which the anchoring component passes.

[0016] Preferably, one side of the repair panel connecting fastener has a concave-convex structure to increase the contact area between the fastener and the repair substrate.

[0017] Preferably, the repair panel has grouting holes connected to grouting pipes, which connect the repair panel to the repair substrate and are used to inject grout to fill the gap.

[0018] Preferably, the anchoring assembly includes multiple anchor bolts, each of which is connected to the repair panel via a tie rod.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] To address the problem of poor integration between the repair structure and the stilling basin in current stilling basin repairs, resulting in weak impact and erosion resistance, an anchoring assembly is installed. Anchor bolts are used to anchor the repair panel into the stilling basin wall, and tie rods are used to connect the repair panel and pass through the repair substrate, firmly connecting the repair structure to the stilling basin wall and enhancing overall integration. The fasteners connecting the repair panel extend into the repair substrate, increasing the tightness of the connection between the panel and the substrate, improving adhesion, and reducing the risk of detachment after prolonged use. The repair panel covers the repair substrate and seals the openings in the damaged area, acting as the part directly bearing the impact and erosion of the water flow, replacing the substrate in directly bearing the water flow impact, thereby improving the impact and erosion resistance of the repair structure and enhancing its durability.

[0021] The anchoring components tightly connect the repair panel, the repair substrate, and the stilling basin wall into a whole, making the repair structure more stable in the stilling basin. This effectively prevents the repair structure from loosening or falling off due to external forces such as water flow impact, ensuring that the repair structure can function stably for a long time.

[0022] The repair substrate and repair panels work together to repair the damaged areas of the stilling basin from two aspects: internal filling and support, and external protection. This can effectively restore the structural integrity of the stilling basin, ensure its energy dissipation effect, reduce the scouring of the downstream riverbed by the water flow, and reduce the impact on the overall structural safety of the stilling basin.

[0023] The repair substrate consists of a middle layer and a surface layer, each made of different materials. The surface layer is made of fiber-reinforced composite non-dispersible concrete with good anti-dispersion properties, self-leveling, and self-compacting properties. When used with an interface agent, it has high bonding strength and provides high impact and abrasion resistance, directly withstanding water erosion. The middle layer of non-dispersible polymer concrete acts as a weight-reduction and buffer, reducing the additional burden of the repair structure's own weight on the stilling basin, while also buffering the impact of water flow. The bottom layer of polymer-modified epoxy mortar enhances the adhesion to the base layer, is water-resistant, moisture-heat resistant, and freeze-thaw resistant, preventing plaster layer hollowing and peeling, ensuring a tight fit between the repair substrate and the damaged area wall of the stilling basin, and improving overall stability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the stilling pool repair structure in an embodiment of this utility model.

[0025] Numbering explanation (in order of first appearance): 21. Substrate bottom layer; 22. Substrate middle layer; 23. Substrate surface layer; 24. Repair panel; 25. Anchor; 26. Tie rod; 27. Nut; 28. Skeleton; 29. ​​Chemical anchor; 31. Grouting pipe. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0027] Existing stilling basin repair structures suffer from poor integration with the stilling basin and insufficient adhesion, making them prone to detachment after prolonged use. To address this, this invention provides a stilling basin repair structure that securely connects the repair structure to the stilling basin wall using anchoring components. Simultaneously, fasteners enhance the connection between the repair panel 24 and the repair substrate, improving adhesion and reducing the risk of detachment after extended use. The repair panel 24 covers the repair substrate and seals openings in damaged areas, acting as the part directly bearing the impact and erosion of water flow, thus replacing the repair substrate in directly absorbing water flow impact and improving the repair structure's impact and erosion resistance.

[0028] like Figure 1 As shown, the stilling basin repair structure mainly includes the repair substrate, the repair panel 24, and the anchoring components.

[0029] The repair substrate is filled into the damaged area of ​​the stilling basin. The repair substrate has a substrate bottom layer 21 that adheres to the inner wall of the damaged area of ​​the stilling basin. The substrate bottom layer 21 is the basic part of the repair structure, which can attach to the damaged area of ​​the stilling basin to provide support and adhesion. The substrate bottom layer 21 has good adhesion properties and can fit tightly into the inner wall of the stilling basin, ensuring a stable connection between the repair substrate and the original structure.

[0030] The repair panel 24 covers the repair substrate and seals the openings in the damaged area of ​​the stilling basin. The repair panel 24 is connected to a fastener that extends into the repair substrate; the fastener enhances the tightness of the connection between the repair panel 24 and the repair substrate. The repair panel 24 directly withstands the impact and erosion of the water flow, and compared to the repair substrate, the repair panel 24 has stronger impact and erosion resistance.

[0031] The anchoring assembly includes anchor bolts and tie rods 26. One end of the tie rod 26 is connected to the repair panel 24, and the other end passes through the repair substrate and connects to the anchor bolts. The anchor bolts are anchored into the stilling pool wall and fixed, so that the repair structure and the stilling pool wall form a solid whole, enhancing the stability of the structure.

[0032] like Figure 1 As shown, the repair substrate is divided into a bottom layer 21, a middle layer 22, and a surface layer 23. This layered structure allows each layer to perform different functions, working synergistically to achieve better repair results. The layered structure also facilitates the selection of appropriate materials based on the functional requirements of each layer.

[0033] The substrate layer 21 uses polymer-modified epoxy mortar, which has excellent adhesion properties and can be firmly applied to the inner wall of the damaged area of ​​the stilling basin, enhancing the connection strength between the repair substrate and the original stilling basin structure and improving overall stability. Taking a certain brand of polymer-modified epoxy mortar as an example, its main components are epoxy resin, curing agent, high-quality aggregate, and various functional additives. Using this polymer-modified epoxy mortar as the substrate layer 21 material, the damaged area of ​​the stilling basin is first cleaned and pre-treated, and then the mixed mortar is evenly applied to the substrate layer. It can adhere tightly to the inner wall of the damaged area of ​​the stilling basin, with high bonding strength, effectively filling the voids formed by concrete spalling, and enhancing the connection between the repair substrate and the original structure.

[0034] Meanwhile, polymer-modified epoxy mortar also has properties such as water resistance, damp heat resistance, and freeze-thaw resistance, which can avoid problems such as hollow plastering and peeling.

[0035] The middle layer 22 of the matrix uses non-dispersible polymer concrete, which has a weight-reducing effect, reducing the overall weight of the repair structure and lessening the additional burden on the original structure of the stilling basin. Non-dispersible polymer concrete is made by adding special polymer admixtures and anti-dispersants to ordinary concrete, and it also buffers the impact of water flow, protecting the underlying and surface materials.

[0036] The substrate surface layer 23 uses fiber-reinforced composite non-dispersible concrete, which has good anti-dispersion performance and can maintain the uniformity and stability of the concrete during underwater construction. The fiber-reinforced composite non-dispersible concrete is composed of high-strength cement, high-quality aggregates, synthetic fibers, and anti-dispersion agents. It has self-leveling and self-compacting characteristics, making it easier to construct, better filling and covering the repair area, and with high bonding strength, it can better bond with the repair panel 24.

[0037] The Mina repair kit uses steel plates, which have high strength, good toughness and deformation resistance, and can effectively resist the impact and erosion of water flow, protecting the repair substrate from damage.

[0038] The steel plate is flush with the opening of the damaged area of ​​the stilling basin, which makes the water flow more smoothly, reduces the concentrated scouring of the repair panel 24 by the water flow, reduces the risk of the repair panel 24 falling off, and also helps to maintain the water flow pattern inside the stilling basin.

[0039] Multiple fasteners are inserted into the repair substrate and fixed to the steel plate. The multiple fasteners increase the connection points between the repair panel 24 and the repair substrate, making the connection between the two tighter and more stable, and improving the reliability of the overall structure.

[0040] The repair panel 24 has a concave-convex structure on one side of the fastener, which increases the contact area between the fastener and the repair substrate, improves the adhesion and friction between the repair panel 24 and the repair substrate, and prevents the repair panel 24 from shifting or falling off under the action of water flow.

[0041] The grouting holes and connected grouting pipes 31 on the repair panel 24 can be used to inject grout into the gap between the repair panel 24 and the repair substrate. This not only fills the gap and enhances the adhesion between the two, but also improves the sealing of the repair structure and prevents water from seeping into the gap and causing structural damage.

[0042] like Figure 1 As shown, a fixing seat is installed on one side of the repair panel 24, and the tie rod 26 is connected to the repair panel 24 through the fixing seat, and then connected to the anchor bolt with a nut 27. This makes the connection between the tie rod 26, the repair panel 24, and the anchor bolt more stable and reliable, facilitates installation and disassembly, and can better transmit tension, ensuring that the anchoring components function properly.

[0043] In this embodiment, the fixing seat can be a one-way insertion and tightening locking member, or it can be fixed to the repair panel 24 by welding nuts 27. The pull rods 26 are installed on the fixing seats one by one. In addition, the ends of the pull rods 26 are machined with threads, and the ends of the anchors are also machined with threads. The pull rods 26 and the anchors are connected by threaded sleeves.

[0044] The anchors used are chemical anchors 29, which are characterized by high durability and stable anchoring force. They cause little disturbance to the foundation concrete during construction, eliminate the need for hole cleaning, can be installed quickly, and are economical in cost. They can reliably anchor the repaired structure to the stilling basin wall.

[0045] The anchoring assembly includes multiple anchor bolts, each of which is connected to the repair panel 24 via a tie rod 26. The repair substrate has channels through which the anchoring assembly passes, and the multiple anchor bolts are evenly distributed on the repair panel 24, ensuring that the repair panel 24 is firmly anchored at all positions. This enhances the connection strength between the repair structure and the stilling basin wall, and improves the stability of the repair structure under water flow impact.

[0046] During construction:

[0047] Inspect the damaged area of ​​the stilling basin and prepare materials such as polymer-modified epoxy mortar and steel plates, as well as tools such as mixers and drilling equipment.

[0048] Clean the damaged area and then construct the following layers in sequence: the base layer 21 (apply polymer-modified epoxy mortar), the middle layer 22 (pour non-dispersible polymer concrete), and the surface layer 23 (pour fiber-reinforced composite non-dispersible concrete).

[0049] A custom-made repair panel 24 with fasteners is installed. Holes are drilled in the repair substrate, and tie rods 26 are installed on the fixing seats on the repair panel 24. One end of a chemical anchor 29 is fixed to the tie rod 26 with a nut 27. Holes are drilled in the repair substrate to form channels, and the holes extend to the wall of the stilling pool. The steel reinforcement skeleton 28 of the stilling pool body is avoided during drilling.

[0050] Adjust the positions of the chemical anchor 29 and the tie rod 26 by repairing the panel 24, and insert the chemical anchor 29 through the channel into the drill hole on the stilling pool wall to form an anchor. The repair panel 24 is flush with the surface of the pool wall.

[0051] Install grouting pipe 31 on repair panel 24 and inject grout to fill the gap between it and the repair substrate.

[0052] Inspect the repair substrate, repair panel 24, anchoring components, and grouting conditions. Once the inspection and approval are satisfactory, the stilling basin can be put into use.

[0053] 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 stilling basin repair structure, characterized by, include: The repair substrate is filled into the damaged area of ​​the stilling basin. The repair substrate has a substrate bottom layer that is attached to the inner wall of the damaged area of ​​the stilling basin. The repair panel covers the repair substrate and seals the opening in the damaged area of ​​the stilling basin. The repair panel is connected to a fastener that extends into the repair substrate. The anchoring assembly includes an anchor bolt and a tie rod. One end of the tie rod is connected to the repair panel, and the other end passes through the repair substrate to connect to the anchor bolt. The anchor bolt is anchored into the wall of the stilling basin and fixed in place.

2. The stilling basin repair structure of claim 1, wherein, The repair substrate also includes a substrate middle layer and a substrate surface layer, with the substrate bottom layer, substrate middle layer and substrate surface layer distributed in sequence, and the substrate surface layer being attached to the repair panel.

3. The stilling basin repair structure of claim 2, wherein, The surface layer of the matrix is ​​made of fiber-reinforced composite non-dispersible concrete, the middle layer of the matrix is ​​made of non-dispersible polymer concrete, and the bottom layer of the matrix is ​​made of polymer-modified epoxy mortar.

4. The stilling basin repair structure of claim 1, wherein, The repair panel is made of steel plate, and the steel plate is flush with the opening of the damaged area of ​​the stilling basin.

5. The stilling basin repair structure of claim 4, wherein, The fasteners are provided in multiple ways. One end of the fastener is fixedly installed on one side of the repair panel, and the other end extends into the repair substrate.

6. The stilling basin repair structure of claim 1, wherein, A fixing seat is installed on one side of the repair panel. One end of the pull rod is connected to the fixing seat, and the other end is connected to the anchor bolt through a nut.

7. The stilling basin repair structure of claim 6, wherein, The anchor is a chemical anchor, and the repair substrate has channels through which the anchoring components pass.

8. The stilling basin repair structure of claim 1, wherein, The repair panel has a concave-convex structure on one side of the fastener, which increases the contact area between the fastener and the repair substrate.

9. The stilling basin repair structure of claim 8, wherein, The repair panel has grouting holes, which are connected to grouting pipes. The grouting pipes connect the repair panel and the repair substrate to inject grout to fill the gap.

10. The stilling basin repair structure of claim 1, wherein, The anchoring assembly includes multiple anchor bolts, each of which is connected to the repair panel via a tie rod.

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