Precast plate pile water stop structure

Abstract

The utility model relates to a precast slab pile water stop structure, which is characterized in that a groove is arranged on a slab pile, and a connecting piece is arranged on the groove; the connecting piece comprises a fixing part, a connecting part and water stopping parts, the water stopping parts and the fixing part are connected with the two ends of the connecting part respectively, the fixing part is connected with the sheet pile, the two water stopping parts are matched with each other and form a first face and a second face which are attached to each other, and the first face and the second face are both located between the fixing part and the water stopping parts. The precast slab pile water stop structure has the advantages that the fixing part is used for being connected with the sheet pile, firm and reliable connection between the connecting piece and the sheet pile is guaranteed, the connecting part is used for connecting the fixing part and the water stop part, and the water stop part is well supported; the first surfaces are attached to the second surfaces, so that the adjacent sheet piles are tightly connected, and water seepage is prevented; the connecting piece can be installed in advance, after the sheet piles are spliced, the first face and the second face are attached to each other, and the sheet piles are automatically pressed and closed under the pressure of water and soil on the back side, so that the good water stopping effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of seepage prevention and water stopping technology for retaining and enclosure structures, and in particular to a precast sheet pile water stopping structure. Background Technology

[0002] Precast concrete sheet piles (wave piles, retaining wall piles, prestressed concrete centrifugal sheet piles, U-shaped sheet piles, etc.) are widely used in riverbank protection, which is of great significance in reducing construction space, ensuring construction quality, and improving construction efficiency.

[0003] The difficulty in constructing precast concrete sheet piles lies in solving the problem of water sealing between piles. Traditional methods for sealing between piles involve driving high-pressure jet grouting piles, cement mixing piles, or grouting after the piles are laid. Driving high-pressure jet grouting piles or cement mixing piles is expensive, and the effectiveness of grouting is difficult to guarantee. Utility Model Content

[0004] One objective of this application is to provide a precast sheet pile water-stopping structure that is low in cost and has a good water-stopping effect.

[0005] The technical solution adopted in this application is as follows: a precast sheet pile water-stopping structure, wherein grooves are provided on both sides of the splicing surface of the sheet pile, and connectors are provided on the grooves; the connectors include a fixing part, a connecting part and a water-stopping part, the two ends of the connecting part are respectively connected to the fixing part and the water-stopping part, the fixing part is located in the groove and connected to the sheet pile, and the two water-stopping parts on the two opposite grooves cooperate with each other to form a first surface and a second surface that fit together, and the first surface and the second surface are both located between the fixing part and the water-stopping part.

[0006] Compared with the prior art, the advantages of this application are that the fixing part is used to connect with the sheet pile, ensuring that the connection between the connector and the sheet pile is firm and reliable; the connecting part is used to connect the fixing part and the water-stopping part, so that the water-stopping part is well supported; the first surface and the second surface are in contact, ensuring that the two water-stopping parts are tightly connected, which can make the connection between adjacent sheet piles tight and prevent water seepage; compared with the traditional grouting water-stopping, which is complicated to construct and costly, the connector can be pre-installed. After the sheet piles are spliced, the first surface and the second surface are in contact with each other, and automatically tighten and close when subjected to back water and soil pressure, thus achieving a good water-stopping effect.

[0007] In some embodiments of this application, the first surface has at least one protrusion, and the second surface has a concave valley that mates with the protrusion. The design of the protrusion and valley not only increases the contact area but also makes it less likely for the first and second surfaces to slide relative to each other, ensuring a more secure fit between the first and second surfaces. Especially when automatically pressed and closed by the back side water and soil pressure, the plane is prone to some sliding, and the connector is more likely to deform under stress, reducing the water-stopping effect. However, by using the protrusion and valley combination, there is a certain locking force between the first and second surfaces, making it less likely for them to slide or deform, resulting in a better water-stopping effect. In other words, under the same conditions, the back side water and soil pressure required for the protrusion and valley to slide is greater.

[0008] In some embodiments of this application, a guide tenon is provided on the first surface, and a guide groove is provided on the second surface to mate with the guide tenon. The design of the guide tenon and guide groove not only ensures precise fit between the first and second surfaces, facilitating the installation of the two water-stopping parts, but also enhances the locking between the first and second surfaces, preventing them from sliding or separating, and ensuring a firm fit. Especially when automatically compressed and closed by the pressure of the back side water and soil, the guide tenon engages with the guide groove, preventing it from moving towards the two side walls of the guide groove. In other words, the first and second surfaces cannot slide to the sides, ensuring a reliable fit and connection.

[0009] In some embodiments of this application, an emergency grouting channel is formed between the first and second surfaces when they are in contact. The design of the emergency grouting channel allows for grouting to be performed through it, serving as a secondary waterproofing guarantee, improving the waterproofing effect, or facilitating emergency grouting when necessary.

[0010] In some embodiments of this application, the connector is made of rubber. The rubber material has a certain elasticity, which is conducive to fitting and makes the connector less prone to breakage. The connector includes at least one layer of built-in nylon skeleton. The built-in nylon skeleton makes the connector structurally stronger and able to withstand greater back side water and soil pressure.

[0011] Furthermore, the water-stopping part is provided with a cavity, which is conducive to the compression of the water-stopping part and improves the sealing performance. During the initial installation, there will inevitably be errors in the size of the sheet pile itself and the splicing position during assembly. In order to improve the water-stopping performance, the fit between the two water-stopping parts is required to be tight, which makes the installation more difficult. The water-stopping part adopts an internal hollow design, which allows the water-stopping part itself to have a certain amount of compression to overcome the size and position deviations, reduce the assembly difficulty, and improve the assembly efficiency. When subjected to the back side water and soil pressure, the water-stopping part is compressed and fits more tightly.

[0012] In some embodiments of this application, the fixing part is provided with a pull ring. During installation, maintenance, and replacement, the connectors are tightly fitted within the grooves, making them difficult to remove. The pull ring design facilitates the removal of the connectors, improving the efficiency of installation, maintenance, and replacement.

[0013] Furthermore, the pull ring is connected to the fixing part via a rod. The top of the rod is connected to the pull ring, and the bottom of the rod is connected to the fixing part. The rod is embedded in the fixing part, ensuring a reliable connection. The bottom of the rod is flush with the bottom of the fixing part, and the top of the rod is flush with the top of the fixing part. In other words, the entire rod runs through the fixing part, acting as a skeleton for the fixing part, thus improving its structural strength. Simultaneously, the pull ring pulls the entire connecting piece through the rod, preventing uneven stress on the fixing part and potential breakage.

[0014] Furthermore, the pull ring is a flat-topped hollow ring. The flat top of the pull ring facilitates hammering and installation.

[0015] In some embodiments of this application, the groove includes a fixing part mounting groove and a water-stopping part connecting groove that are interconnected. The fixing part is disposed in the fixing part mounting groove and is engaged with the sheet pile through the fixing part mounting groove. The water-stopping part is disposed on the water-stopping part connecting groove on the opposite side. The design of the fixing part mounting groove and the water-stopping part connecting groove makes the installation positions of the fixing part and the water-stopping part clear. At the same time, the installation method of the fixing part being engaged with the fixing part mounting groove simplifies the installation.

[0016] Furthermore, the mounting groove of the fixing part is provided with chamfers and / or rounded corners. The chamfering or rounding treatment on the mounting groove of the fixing part can prevent stress concentration in the prefabricated structure.

[0017] In some embodiments of this application, the included angle between the connecting part and the fixing part is greater than 90° to prevent stress concentration at the connection between the connecting part and the fixing part; the included angle between the connecting part and the water-stopping part is greater than 90° to prevent stress concentration at the connection between the connecting part and the water-stopping part.

[0018] In some embodiments of this application, a water-swellable rubber strip is provided between the groove and the connector. After the connector is installed, there will inevitably be a gap between the groove and the connector. By filling the gap with the water-swellable rubber strip, a whole is formed, which can transmit and distribute the force in all directions. Moreover, the rubber strip will expand when it comes into contact with water, which will have a sealing effect and further improve the water-stopping effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the two grooves in Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0021] Figure 3 This is a cross-sectional view of a pair of mating connectors according to Embodiment 2 of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0023] Figure 5 This is a cross-sectional view of a pair of mating connectors according to Embodiment 3 of this utility model;

[0024] Figure 6 This is a structural schematic diagram of Embodiment 3 of the present invention;

[0025] Figure 7 This is a schematic diagram of the groove structure in Embodiment 3 of this utility model;

[0026] Figure 8 This is a schematic diagram of the installation structure of the pull ring and rod in Embodiment 3 of this utility model.

[0027] In the diagram: 1. Sheet pile; 2. Groove; 3. Fixing part; 4. Connecting part; 5. Water-stopping part; 6. First surface; 7. Second surface; 8. Protrusion; 9. Concave valley; 10. Guide tenon; 11. Guide groove; 12. Built-in nylon skeleton; 13. Pull ring; 14. Rod; 15. Fixing part mounting groove; 16. Water-stopping part connecting groove; 17. Chamfer; 18. Rubber strip; 19. Emergency grouting channel; 20. Cavity; 21. Rounded corner. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0029] Example 1:

[0030] This embodiment provides a precast sheet pile water-stopping structure, such as Figure 1 , Figure 2 As shown, grooves 2 are provided on both sides of the splicing surface of the sheet pile 1, and connectors are provided on the grooves 2. The connectors include a fixing part 3, a connecting part 4, and a water-stopping part 5. The two ends of the connecting part 4 are connected to the fixing part 3 and the water-stopping part 5 respectively. The fixing part 3 is located in the groove 2 and connected to the sheet pile 1. The two water-stopping parts 5 on the two opposite grooves 2 cooperate with each other to form a first surface 6 and a second surface 7 that fit together. The first surface 6 and the second surface 7 are both located between the fixing part 3 and the water-stopping part 5. In this embodiment, the fixing part 3 is connected to the sheet pile 1 by bolts; the connectors are made of rubber material; one groove 2 is provided on each side of the splicing surface of each sheet pile 1. Of course, multiple grooves 2 can also be provided on each side of the splicing surface of each sheet pile 1, such as two grooves 2 on each side.

[0031] The fixing part 3 is used to connect with the sheet pile 1, ensuring a firm and reliable connection between the connector and the sheet pile 1. The connecting part 4 is used to connect the fixing part 3 and the water-stopping part 5, providing good support for the water-stopping part 5. The first surface 6 and the second surface 7 are fitted together, ensuring a tight connection between the two water-stopping parts 5 and preventing water seepage. The first surface 6 and the second surface 7 are both located between the fixing part 3 and the water-stopping part 5, ensuring that the first surface 6 and the second surface 7 remain fitted together under the pressure of water and soil on the back side. Compared with traditional grouting water-stopping, which is complex to construct and costly, the connector can be pre-installed. After the sheet pile 1 is spliced, the first surface 6 and the second surface 7 are fitted together, automatically tightening and closing under the pressure of water and soil on the back side to achieve a good water-stopping effect.

[0032] Example 2:

[0033] This embodiment provides a precast sheet pile water-stopping structure, which aims to improve the water-stopping effect, such as... Figure 3 , Figure 4 As shown, in addition to the features described in Embodiment 1, the first surface 6 is provided with at least one protrusion 8, and the second surface 7 is provided with a concave valley 9 that cooperates with the protrusion 8. In this embodiment, two protrusions 8 are provided on the first surface 6, and two corresponding concave valleys 9 are provided on the second surface 7. The two protrusions 8 are located on both sides of the first surface 6. The protrusions 8 are located on both sides, which makes the two sides of the first surface 6 and the second surface 7 fit better and makes it less likely for the two sides to slide. The design of the protrusions 8 and the concave valleys 9 not only increases the contact area, but also makes it less likely for the first surface 6 and the second surface 7 to slide relative to each other, ensuring a more secure fit between the first surface 6 and the second surface 7. Especially when automatically pressed and closed by the back side water and soil pressure, the plane is prone to some sliding, and the connecting parts are more likely to deform under stress, reducing the water-stopping effect. However, by using the protrusions 8 and the concave valleys 9, there is a certain locking force between the first surface 6 and the second surface 7, and the two are less likely to slide or deform, resulting in a better water-stopping effect. That is to say, under the same conditions, the back side water and soil pressure required for the protrusions 8 and the concave valleys 9 to slide is greater.

[0034] The two peaks 8 can also be made of different materials. The first one uses high-hardness rubber, such as high-hardness EPDM rubber (Shore hardness 75±5), to achieve rigid contact, while the second one uses a composite silicone rubber layer (Shore hardness 45±3) to provide flexible adaptive compensation.

[0035] To facilitate installation and improve the water-stopping effect, a guide tenon 10 is provided on the first surface 6, and a guide groove 11 that mates with the guide tenon 10 is provided on the second surface 7. The design of the guide tenon 10 and the guide groove 11 not only allows the first surface 6 and the second surface 7 to fit precisely, facilitating the installation of the two water-stopping parts 5, but also improves the locking between the first surface 6 and the second surface 7, preventing them from sliding or separating, and ensuring a firm fit. Especially when automatically pressed and closed by the pressure of the back side water and soil, the guide tenon 10 is engaged in the guide groove 11, and the guide tenon 10 cannot move towards the two side walls of the guide groove 11. In other words, the first surface 6 and the second surface 7 cannot slide to the sides, ensuring a reliable fit and connection between the two.

[0036] In this embodiment, the guide tenon 10 is provided on the protrusion 8, and the corresponding guide groove 11 is provided on the concave valley 9; a guide tenon 10 is provided on each protrusion 8, and a corresponding guide groove 11 is provided on each concave valley 9; the guide tenon 10 is provided on the top of the protrusion 8.

[0037] To improve safety during use, an emergency grouting channel 19 is formed between the first surface 6 and the second surface 7 when they are in contact. The diameter of the emergency grouting channel 19 is 10mm. The design of the emergency grouting channel 19 allows for grouting to be performed through it, serving as a secondary waterproofing guarantee, improving the waterproofing effect, or facilitating emergency grouting when necessary.

[0038] In this embodiment, concave surfaces are provided on both the first surface 6 and the second surface 7. When the first surface 6 and the second surface 7 are in contact, the two concave surfaces form an emergency grouting channel 19. The emergency grouting channel 19 is located between the two convex peaks 8.

[0039] To ensure the reliability of the connector, it is made of rubber; the connector includes at least one layer of built-in nylon skeleton 12. The rubber material has a certain degree of elasticity, which is beneficial for fit and makes the connector less prone to breakage; the built-in nylon skeleton 12 makes the connector structurally stronger and able to withstand greater backside water and soil pressure.

[0040] In this embodiment, a layer of built-in nylon skeleton 12 is provided; the built-in nylon skeleton 12 is arranged around the inner side of the outer surface of the connector.

[0041] To ensure a tight fit, the angle between the connecting part 4 and the fixing part 3 is greater than 90° to prevent stress concentration at the connection point. Similarly, the angle between the connecting part 4 and the water-stopping part 5 is greater than 90° to prevent stress concentration at the connection point. When the first surface 6 and the second surface 7 are in contact, the connecting part 4 and the water-stopping part 5 are in contact. The inclined design of the connecting part 4 also allows the surfaces where the connecting part 4 and the water-stopping part 5 are in contact to share some of the pressure.

[0042] Example 3:

[0043] This embodiment provides a precast sheet pile waterstop structure, which, in order to facilitate a tight fit, such as Figure 5 , Figure 6 As shown, in addition to the features described in Embodiment 2, the water-stopping part 5 has a cavity 20 inside, that is, the water-stopping part 5 has a hollow structure. The cavity 20 is conducive to the compression of the water-stopping part 5 and improves the sealing performance. During the initial installation, there will inevitably be errors in the size of the sheet pile 1 and the splicing position during assembly. In order to improve the water-stopping performance, the fit between the two water-stopping parts 5 is required to be tight, which makes the installation more difficult. The water-stopping part 5 adopts an internal hollow design, so that the water-stopping part 5 itself can have a certain amount of compression to overcome the size and position deviation, reduce the assembly difficulty, and improve the assembly efficiency. When subjected to the back side water and soil pressure, the water-stopping part 5 is compressed and fits more tightly.

[0044] For ease of installation, maintenance and replacement, such as Figure 8 As shown, the fixing part 3 is provided with a pull ring 13; the pull ring 13 is connected to the fixing part 3 through a rod 14, the top end of the rod 14 is connected to the pull ring 13, and the bottom end of the rod 14 is connected to the fixing part 3; the pull ring 13 is a flat-topped hollow ring. In this embodiment, two pull rings 13 are provided; the pull rings 13 adopt a metal structure or other high-strength structure; the bottom surface of the pull ring 13 is lower than the top surface of the fixing part 3. During installation, maintenance, and replacement, the connectors are tightly fitted within the groove 2, making them difficult to remove. The design of the pull ring 13 facilitates the removal of the connectors, improving the efficiency of installation, maintenance, and replacement. The rod 14 is embedded in the fixing part 3, ensuring a reliable connection. The bottom of the rod 14 is flush with the bottom of the fixing part 3, and the top of the rod 14 is flush with the top of the fixing part 3. In other words, the rod 14 runs through the fixing part 3, acting as a skeleton for the fixing part 3, thus improving the structural strength of the fixing part 3. At the same time, the pull ring 13 can lift the entire connector through the rod 14, preventing uneven stress on the fixing part 3 and potential breakage. The pull ring 13 is a flat-topped hollow ring, which facilitates hammering installation.

[0045] For groove 2 to be reliable, such as Figure 7As shown, the groove 2 includes a fixing part mounting groove 15 and a water-stop connecting groove 16 that are interconnected. The fixing part 3 is disposed in the fixing part mounting groove 15 and is engaged with the sheet pile 1 through the fixing part mounting groove 15. The water-stop part 5 is disposed on the water-stop connecting groove 16 on the opposite side. The fixing part mounting groove 15 is provided with a chamfer 17 and / or a rounded corner 21. In this embodiment, the fixing part mounting groove 15 is provided with a chamfer 17 and a rounded corner 21. The chamfer 17 and the rounded corner 21 are both disposed between adjacent groove walls of the fixing part mounting groove 15 and between the groove wall of the fixing part mounting groove 15 and the groove wall of the water-stop connecting groove 16. The fixing part mounting groove 15 is provided with a chamfer 17 on the side away from the fixing part 3, and the fixing part 3 is chamfered on the corresponding side. The opening of the water-stop connecting groove 16 faces the water-stop connecting groove 16 on the opposite side of the sheet pile 1. The design of the mounting groove 15 for the fixing part and the connecting groove 16 for the water-stopping part makes the installation positions of the fixing part 3 and the water-stopping part 5 clear. At the same time, the installation method of the fixing part 3 being inserted into the mounting groove 15 for the fixing part is simple. The chamfer 17 or rounded corner treatment on the mounting groove 15 for the fixing part can prevent stress concentration in the prefabricated structure.

[0046] For reliable installation, a water-swellable rubber strip 18 is provided between the groove 2 and the connector. After the connector is installed, there will inevitably be a gap between the groove 2 and the connector. By filling the gap with the water-swellable rubber strip 18, a whole is formed, which can transmit and distribute the force in all directions. Moreover, the rubber strip 18 will expand when it comes into contact with water, which will have a sealing effect and further improve the water-stopping effect.

[0047] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A precast sheet pile waterstop structure, characterized by, Grooves (2) are arranged on both sides of the sheet pile (1), and connecting pieces are arranged on the grooves (2); the connecting piece comprises a fixed part (3), a connecting part (4) and a water stop part (5), the two ends of the connecting part (4) are connected with the fixed part (3) and the water stop part (5) respectively, the fixed part (3) is located in the groove (2) and connected with the sheet pile (1), the two water stop parts (5) on the two grooves (2) are matched with each other and form a first surface (6) and a second surface (7) which are matched with each other, and the first surface (6) and the second surface (7) are located between the fixed part (3) and the water stop part (5).

2. A precast sheet pile waterstop structure according to claim 1, wherein: At least one convex peak (8) is arranged on the first surface (6), and a concave valley (9) matched with the convex peak (8) is arranged on the second surface (7).

3. A precast sheet pile waterstop structure according to claim 1, wherein: The connecting piece is made of rubber, and the connecting piece comprises at least one built-in nylon skeleton (12).

4. A precast sheet pile waterstop structure according to claim 3, wherein: A cavity (20) is arranged on the water stop part (5).

5. A precast sheet pile waterstop structure according to claim 1, wherein An emergency grouting channel (19) is formed between the first surface (6) and the second surface (7) in the matched state.

6. A precast sheet pile waterstop structure according to claim 1, wherein: A guide tenon (10) is arranged on the first surface (6), and a guide groove (11) matched with the guide tenon (10) is arranged on the second surface (7).

7. A precast sheet pile waterstop structure according to claim 1, wherein: The groove (2) comprises a fixed part mounting groove (15) and a water stop part connecting groove (16) which are communicated with each other, the fixed part (3) is arranged in the fixed part mounting groove (15) and is clamped with the sheet pile (1) through the fixed part mounting groove (15), and the water stop part (5) is arranged on the water stop part connecting groove (16) on the opposite side; a chamfer (17) and / or a round corner (21) are arranged on the fixed part mounting groove (15).

8. A precast sheet pile waterstop structure according to claim 1, wherein: A pull ring (13) is arranged on the fixed part (3); the pull ring (13) is connected with the fixed part (3) through a rod (14), the top end of the rod (14) is connected with the pull ring (13), and the lower part of the rod (14) is connected with the fixed part (3); the pull ring (13) is a flat-top hollow ring.

9. A precast sheet pile waterstop structure according to claim 1, wherein: A rubber strip (18) which expands in water is arranged between the groove (2) and the connecting piece.

10. A precast sheet pile waterstop structure according to claim 1, wherein: The included angle between the connecting part (4) and the fixed part (3) is greater than 90°, and the included angle between the connecting part (4) and the water stop part (5) is greater than 90°.

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