Underwater pile foundation pouring construction structure
By installing steel molds and flow guiding components on the outside of the pile foundation, combined with the sealing design, the problem of pouring reinforcement layers for narrow pile foundations was solved, enabling flexible concrete pouring and strength enhancement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG PROVINCIAL ARCHITECTURAL ENG MACHINERY CONSTR
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-24
AI Technical Summary
Existing technologies make it difficult to pour reinforcement layers for narrow pile foundations, especially when the concrete thickness is less than the diameter of the guide pipe, as the guide pipe is difficult to extend into the steel formwork for pouring.
A steel mold, a first flow guide component, and a second flow guide component are used to enclose the outside of the existing pile foundation to form a pouring space. The concrete conveying device is connected through the first and second flow guide components, and the connection is sealed by the first and second sealing components to achieve layered pouring.
It enables concrete pouring to adapt to various pile foundation reinforcement layer thicknesses, offering flexibility and applicability, preventing water seepage and concrete leakage, and improving the strength of the concrete pouring layer.
Smart Images
Figure CN224161078U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, and specifically to an underwater pile foundation casting construction structure. Background Technology
[0002] In bridge construction, pile foundations are primarily for supporting the bridge structure. Over long-term use, pile foundations are affected by external factors such as long-term scouring by water flow and river erosion, inadequate curing of the bridge pile foundation concrete, premature formwork removal, and poor concrete quality. These factors can lead to concrete spalling and exposed reinforcement in the piles, affecting the durability and load-bearing capacity of the pile foundation. Current methods for reinforcing pile foundations by casting concrete on the outside of the existing pile foundation mainly involve surrounding it with steel formwork and then inserting a tremie pipe between the existing pile foundation and the steel formwork for concrete pouring. However, when the required concrete thickness is less than the diameter of the tremie pipe, it is difficult for the tremie pipe to penetrate the steel formwork for pouring. Therefore, a structure is needed that can be used for pouring reinforcement layers in narrow pile foundations to solve the problem of the difficulty in pouring reinforcement layers in narrow pile foundations. Utility Model Content
[0003] One of the objectives of this utility model is to provide an underwater pile foundation casting construction structure to solve the problem of difficulty in casting reinforcement layers for narrow pile foundations in the prior art.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] An underwater pile foundation casting construction structure for reinforcing the outer side of an existing pile foundation includes: a steel formwork, a first flow guiding component, and a second flow guiding component. The steel formwork is used to enclose the outer side of the existing pile foundation and form a casting space between it and the existing pile foundation. The first flow guiding component and the second flow guiding component are respectively installed on the outer side of the steel formwork and are connected to the casting space for connecting a concrete conveying device so that concrete can be input into the casting space through the first flow guiding component and the second flow guiding component. The first flow guiding component and the second flow guiding component are located at different heights on the steel formwork. A first sealing element and a second sealing element are also included, with the first sealing element installed between the steel formwork and the first flow guiding component, and the second sealing element installed between the steel formwork and the second flow guiding component.
[0006] Based on the aforementioned technical means, the installation of a first and second flow guiding component on the outside of the steel mold to input concrete into the pouring space can adapt to the pouring of concrete with various pile foundation reinforcement layer thicknesses, and has flexibility, applicability and practicality; the first and second sealing components can increase the sealing of the connection between the first and second flow guiding components and the steel mold, and can effectively prevent water from seeping into the first and / or second flow guiding components or concrete leakage; the layered design of the first and second flow guiding components can realize layered pouring, avoid the segregation of concrete due to excessive pouring height at one time, and thus increase the strength of the concrete pouring layer.
[0007] Furthermore, the first flow guiding assembly includes a first pipe base and a first conduit, the first pipe base being installed on the outside of the steel mold; one end of the first conduit being installed on the first pipe base, and the other end being used to connect to a concrete conveying device; the first seal is installed between the steel mold and the first pipe base.
[0008] Based on the above technical means, the first pipe base can provide an installation foundation and installation positioning for the first conduit, increasing the installation stability of the first conduit. Moreover, when it is necessary to replace the conduit of different lengths according to the construction environment, there is no need to replace the first pipe base; only the first conduit needs to be replaced, which is simple, quick, and flexible. The first sealing element can increase the installation sealing between the steel mold and the first pipe base.
[0009] Furthermore, the first pipe base includes a first pipe body, a first fixed flange, and a second fixed flange, with the first fixed flange and the second fixed flange respectively installed at both ends of the first pipe body; the first fixed flange is installed on the steel mold, and one end of the first conduit is installed on the second fixed flange.
[0010] According to the above technical means, the first pipe body is installed on the steel mold using the first fixed flange, which increases the installation area between the first pipe base and the steel mold, thereby increasing the installation stability between the first pipe base and the steel mold; one end of the first conduit is connected to the second fixed flange, which increases the installation stability between the first conduit and the first pipe base.
[0011] Furthermore, a third fixing flange is formed at one end of the first conduit where the first pipe base is mounted. The third fixing flange is mounted on the second fixing flange, and a third sealing element is installed between the second fixing flange and the third fixing flange.
[0012] According to the above technical means, by using the connection between the third fixed flange and the second fixed flange, the first conduit is installed on the first pipe base, which increases the contact area between the first conduit and the first pipe base and further enhances the installation stability of the first conduit and the first pipe base; the third sealing element can increase the installation sealing between the second fixed flange and the third fixed flange, and prevent water seepage or concrete leakage at the connection between the second fixed flange and the third fixed flange.
[0013] Furthermore, a first annular groove is formed on the first fixed flange, and a second annular groove is formed on the second fixed flange. The first seal and the third seal are respectively installed in the first annular groove and the second annular groove.
[0014] According to the above technical means, the first annular groove and the second annular groove provide installation positioning for the first seal and the third seal, respectively, which increases the accuracy of the installation of the first seal and the third seal and avoids uneven sealing caused by the installation misalignment of the first seal and the third seal.
[0015] Furthermore, the second flow guiding assembly includes a second pipe base and a second conduit, the second pipe base being installed on the outside of the steel mold; one end of the second conduit being installed on the second pipe base, and the other end being used to connect to a concrete conveying device; the second seal is installed between the steel mold and the second pipe base.
[0016] Based on the above technical means, the second pipe base can provide an installation foundation and installation positioning for the second conduit, increasing the installation stability of the second conduit. Moreover, when it is necessary to replace the conduit of different lengths according to the construction environment, there is no need to replace the second pipe base; only the second conduit needs to be replaced, which is simple, quick, and flexible. The second sealing element can increase the installation sealing between the steel mold and the second pipe base.
[0017] Furthermore, the second pipe base includes a second pipe body, a fourth fixed flange, and a fifth fixed flange, wherein the fourth fixed flange and the fifth fixed flange are respectively installed at both ends of the second pipe body; the fourth fixed flange is installed on the steel mold, and one end of the second conduit is installed on the fourth fixed flange.
[0018] According to the above technical means, the second pipe body is installed on the steel mold using the fourth fixed flange, which increases the installation area between the second pipe base and the steel mold, thereby increasing the installation stability between the second pipe base and the steel mold; one end of the second conduit is connected to the fourth fixed flange, which increases the installation stability between the second conduit and the second pipe base.
[0019] Furthermore, a sixth fixing flange is formed at one end of the second conduit where the second pipe base is mounted. The sixth fixing flange is mounted on the fifth fixing flange, and a fourth sealing element is installed between the fifth fixing flange and the sixth fixing flange.
[0020] Based on the above technical means, by using the connection between the sixth fixed flange and the fifth fixed flange, the second conduit is installed on the second pipe base, which increases the contact area between the second conduit and the second pipe base and further enhances the installation stability of the second conduit and the second pipe base; the fourth sealing element can increase the installation sealing between the fifth fixed flange and the sixth fixed flange, and prevent water seepage or concrete leakage at the connection between the fifth fixed flange and the sixth fixed flange.
[0021] Furthermore, a third annular groove is formed on the fourth fixed flange, and a fourth annular groove is formed on the fifth fixed flange. The second seal and the fourth seal are respectively installed in the third annular groove and the fourth annular groove.
[0022] Based on the above technical means, the third and fourth annular grooves provide installation positioning for the second and fourth seals, respectively, increasing the accuracy of the installation of the second and fourth seals and avoiding uneven sealing caused by installation misalignment of the second and fourth seals.
[0023] Furthermore, the steel mold has a first feed hole and a second feed hole, which are located at different heights; a first water-stop flange is provided at the first feed hole, and a first fixed flange is installed on the first water-stop flange; a second water-stop flange is provided at the second feed hole, and a fourth fixed flange is installed on the second water-stop flange.
[0024] According to the above technical means, the first feed hole and the second feed hole are used to input concrete into the steel mold. The first water-stop flange can increase the installation sealing between the first fixed flange and the periphery of the first feed port, and the second water-stop flange can increase the installation sealing between the second fixed flange and the periphery of the second feed port, so as to further prevent water from seeping into the steel mold from the installation points around the first fixed flange and the first feed port, and to prevent water from seeping into the installation points around the fourth fixed flange and the second feed port, and also to prevent concrete leakage.
[0025] The beneficial effects of this utility model are as follows:
[0026] The first and second flow guiding components are installed on the outside of the steel mold to input concrete into the pouring space, which can adapt to the pouring of concrete with various pile foundation reinforcement layer thicknesses, and has flexibility, applicability and practicality; the first and second sealing components can increase the sealing of the connection between the first and second flow guiding components and the steel mold, and can effectively prevent water from seeping into the first and / or second flow guiding components or concrete leakage; the layered design of the first and second flow guiding components can realize layered pouring, avoid the segregation of concrete due to excessive pouring height at one time, and thus increase the strength of the concrete pouring layer. Attached Figure Description
[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0029] Figure 2 This is a top view of the first and second flow guiding components installed on the steel mold.
[0030] Figure 3 yes Figure 2 Schematic diagram of section AA;
[0031] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure at point B;
[0032] Figure 5 yes Figure 3 Enlarged schematic diagram of the structure at point C;
[0033] Figure 6 This is a schematic diagram of the structure of the first tube base of this utility model;
[0034] Figure 7 This is a schematic diagram of the structure of the second tube base of this utility model.
[0035] in:
[0036] 001. Existing pile foundation; 100. Steel formwork; 110. First feed hole; 120. Second feed hole; 130. First water-stop flange; 140. Second water-stop flange; 150. Reinforcing rib; 200. First flow guiding assembly; 210. First pipe base; 211. First pipe body; 212. First fixed flange; 2121. First annular groove; 213. Second fixed flange; 2131. Second annular groove; 220. First guide pipe; 22 1. Third fixed flange; 300. Second flow guide assembly; 310. Second pipe base; 311. Second pipe body; 312. Fourth fixed flange; 3121. Third annular groove; 313. Fifth fixed flange; 3131. Fourth annular groove; 320. Second conduit; 321. Sixth fixed flange; 400. Casting space; 500. First seal; 600. Second seal; 700. Third seal; 800. Fourth seal. Detailed Implementation
[0037] The embodiments of this utility model will be described below with reference to the accompanying drawings and preferred embodiments. The drawings are for illustrative purposes only and should not be construed as limiting the utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be understood that the preferred embodiments are only for illustrating this utility model and not for limiting the scope of protection of this utility model.
[0038] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the drawings only show the components related to the present invention and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0039] This embodiment provides, as follows: Figure 1 and Figure 7The diagram illustrates an underwater pile foundation casting construction structure for reinforcing the outer side of an existing pile foundation 001. It includes: a steel mold 100, a first flow guiding component 200, and a second flow guiding component 300. The steel mold 100 is used to enclose the outer side of the existing pile foundation 001, forming a casting space 400 between it and the existing pile foundation 001. The first flow guiding component 200 and the second flow guiding component 300 are respectively installed on the outer side of the steel mold 100 and connected to the casting space 400, serving to connect a concrete conveying device so that concrete can be input into the casting space 400 through the first flow guiding component 200 and the second flow guiding component 300. The first flow guiding component 200 and the second flow guiding component 300 are located at different heights on the steel mold 100. A first sealing element 500 and a second sealing element 600 are also included. The first sealing element 500 is installed between the steel mold 100 and the first flow guiding component 200; the second sealing element 600 is installed between the steel mold 100 and the second flow guiding component 300.
[0040] When it is necessary to reinforce the existing pile foundation 001, firstly, the steel formwork 100 is set up around the outside of the existing pile foundation 001, with the upper end of the steel formwork 100 above the water surface. Then, divers install the first flow guide component 200 and the second flow guide component 300 underwater. Then, water is pumped out of the steel formwork 100 to ensure that the water content inside the steel formwork 100 meets the construction requirements. When pouring concrete, it is poured in layers: firstly, the concrete is quickly conveyed into the second flow guide component 300 using a concrete conveying device, so that the concrete enters the interior of the steel formwork 100 (at this time, since the section to be poured is annular, the concrete will flow along the annular path, which is conducive to the mixing of the concrete). When the first layer of concrete reaches the position of the second flow guide component 300, the concrete is switched to be poured by the first flow guide component 200. When the pouring height reaches the position of the first flow guide component 200, the first flow guide component 200 and the second flow guide component 300 simultaneously pour concrete to the top of the steel formwork 100.
[0041] The first flow guiding component 200 and the second flow guiding component 300 are installed on the outside of the steel mold 100 to input concrete into the pouring space 400. This can adapt to the pouring of concrete with various pile foundation reinforcement layer thicknesses, and has flexibility, applicability and practicality. The first sealing component 500 and the second sealing component 600 can increase the sealing of the connection between the first flow guiding component 200 and the second flow guiding component 300 and the steel mold 100, and can effectively prevent water from seeping into the first flow guiding component 200 and / or the second flow guiding component 300 or concrete leakage. The layered design of the first flow guiding component 200 and the second flow guiding component 300 can realize layered pouring, avoid the segregation of concrete due to excessive pouring height at one time, and thus increase the strength of the concrete pouring layer.
[0042] To facilitate the installation of the steel formwork 100, it consists of two sub-formworks. During installation, the two sub-formworks are hoisted underwater and then assembled together. The steel formwork 100 is made of Q235 steel plate welded together, with a wall thickness of 12mm.
[0043] To enhance the strength of the steel mold 100, several reinforcing ribs 150 are formed on the steel mold 100.
[0044] like Figure 1 As shown, in this embodiment, the first flow guiding assembly 200 includes a first pipe base 210 and a first conduit 220. The first pipe base 210 is installed on the outside of the steel mold 100. One end of the first conduit 220 is installed on the first pipe base 210, and the other end is used to connect to the concrete conveying device. A first sealing element 500 is installed between the steel mold 100 and the first pipe base 210. The first pipe base 210 can provide an installation foundation and installation positioning for the first conduit 220, increasing the installation stability of the first conduit 220. Furthermore, when it is necessary to replace the conduit with one of different lengths according to the construction environment, it is not necessary to replace the first pipe base 210; only the first conduit 220 needs to be replaced, which is simple, quick, and flexible. The first sealing element 500 can increase the installation sealing between the steel mold 100 and the first pipe base 210. The first conduit 220 is a seamless steel pipe (material 20#) with an inner diameter of 100mm and a wall thickness of 4mm, and the top of the pipe is 1.2m above the water surface.
[0045] like Figure 6 As shown, in this embodiment, the first pipe base 210 includes a first pipe body 211, a first fixed flange 212, and a second fixed flange 213. The first fixed flange 212 and the second fixed flange 213 are respectively installed at both ends of the first pipe body 211. The first fixed flange 212 is installed on the steel mold 100, and one end of the first conduit 220 is installed on the second fixed flange 213. Using the first fixed flange 212 to install the first pipe body 211 on the steel mold 100 increases the installation area between the first pipe base 210 and the steel mold 100, thereby increasing the installation stability between the first pipe base 210 and the steel mold 100. One end of the first conduit 220 is connected to the second fixed flange 213, increasing the installation stability between the first conduit 220 and the first pipe base 210. To ensure the first fixed flange 212 is securely installed on the steel mold 100, M12 high-strength bolts are used to install the first fixed flange 212 on the steel mold 100.
[0046] like Figure 1As shown, in this embodiment, a third fixing flange 221 is formed at one end of the first conduit 220 that is mounted on the first pipe base 210. The third fixing flange 221 is mounted on the second fixing flange 213, and a third sealing element 700 is installed between the second fixing flange 213 and the third fixing flange 221. By utilizing the connection between the third fixing flange 221 and the second fixing flange 213, the first conduit 220 is mounted on the first pipe base 210, increasing the contact area between the first conduit 220 and the first pipe base 210, further enhancing the installation stability of the first conduit 220 and the first pipe base 210. The third sealing element 700 can increase the installation sealing between the second fixing flange 213 and the third fixing flange 221, preventing water seepage or concrete leakage at the connection point. To ensure the second fixing flange 213 is securely mounted on the third fixing flange 221, M12 high-strength bolts are used to install the second fixing flange 213 onto the third fixing flange 221.
[0047] like Figure 6 As shown, in this embodiment, a first annular groove 2121 is formed on the first fixed flange 212, and a second annular groove 2131 is formed on the second fixed flange 213. The first seal 500 and the third seal 700 are respectively installed in the first annular groove 2121 and the second annular groove 2131. The first annular groove 2121 and the second annular groove 2131 provide installation positioning for the first seal 500 and the third seal 700, respectively, increasing the accuracy of the installation of the first seal 500 and the third seal 700 and avoiding uneven sealing caused by the installation misalignment of the first seal 500 and the third seal 700.
[0048] like Figure 1 As shown, in this embodiment, the second flow guiding assembly 300 includes a second pipe base 310 and a second conduit 320. The second pipe base 310 is installed on the outside of the steel mold 100; one end of the second conduit 320 is installed on the second pipe base 310, and the other end is used to connect to the concrete conveying device; a second sealing element 600 is installed between the steel mold 100 and the second pipe base 310. The second pipe base 310 provides an installation foundation and positioning for the second conduit 320, increasing the installation stability of the second conduit 320. Furthermore, when it is necessary to replace the conduit with one of different lengths according to the construction environment, it is not necessary to replace the second pipe base 310; only the second conduit 320 needs to be replaced, which is simple, quick, and flexible. The second sealing element 600 increases the installation seal between the steel mold 100 and the second pipe base 310. The second conduit 320 is a seamless steel pipe (material 20#) with an inner diameter of 100mm and a wall thickness of 4mm, and the top of the pipe extends 1.2m above the water surface.
[0049] like Figure 7As shown, in this embodiment, the second pipe base 310 includes a second pipe body 311, a fourth fixing flange 312, and a fifth fixing flange 313. The fourth fixing flange 312 and the fifth fixing flange 313 are respectively installed at both ends of the second pipe body 311. The fourth fixing flange 312 is installed on the steel mold 100, and one end of the second conduit 320 is installed on the fourth fixing flange 312. Using the fourth fixing flange 312 to install the second pipe body 311 on the steel mold 100 increases the installation area between the second pipe base 310 and the steel mold 100, thereby increasing the installation stability between the second pipe base 310 and the steel mold 100. One end of the second conduit 320 is connected to the fourth fixing flange 312, increasing the installation stability between the second conduit 320 and the second pipe base 310. To ensure the fourth fixing flange 312 is securely installed on the steel mold 100, M12 high-strength bolts are used to install the fourth fixing flange 312 on the steel mold 100.
[0050] like Figure 1 As shown, in this embodiment, a sixth fixing flange 321 is formed at one end of the second conduit 320 that is mounted on the second pipe base 310. The sixth fixing flange 321 is mounted on the fifth fixing flange 313, and a fourth sealing element 800 is installed between the fifth fixing flange 313 and the sixth fixing flange 321. By utilizing the connection between the sixth fixing flange 321 and the fifth fixing flange 313, the second conduit 320 is mounted on the second pipe base 310, increasing the contact area between the second conduit 320 and the second pipe base 310, further enhancing the installation stability of the second conduit 320 and the second pipe base 310. The fourth sealing element 800 can increase the installation sealing between the fifth fixing flange 313 and the sixth fixing flange 321, preventing water seepage or concrete leakage at the connection point. To ensure that the sixth fixing flange 321 is securely mounted on the fifth fixing flange 313, M12 high-strength bolts are used to install the sixth fixing flange 321 onto the fifth fixing flange 313.
[0051] like Figure 7 As shown, in this embodiment, a third annular groove 3121 is formed on the fourth fixed flange 312, and a fourth annular groove 3131 is formed on the fifth fixed flange 313. The second seal 600 and the fourth seal 800 are respectively installed in the third annular groove 3121 and the fourth annular groove 3131. The third annular groove 3121 and the fourth annular groove 3131 provide installation positioning for the second seal 600 and the fourth seal 800, respectively, increasing the accuracy of the installation of the second seal 600 and the fourth seal 800 and avoiding uneven sealing caused by the installation misalignment of the second seal 600 and the fourth seal 800.
[0052] To ensure good sealing performance of the first seal 500, the second seal 600, the third seal 700, and the fourth seal 800, one or more of each seal uses a sealing ring with a cross-sectional diameter of 6mm and a compression rate of 30%. To further enhance the sealing effect, each sealing ring can also be used in conjunction with a flat washer with a thickness of 3mm and a preload of 0.3MPa, so that each flat washer can be firmly clamped to the side wall of each annular groove, thereby strengthening the sealing effect.
[0053] In other embodiments, to further enhance the seal, sealant can be filled at the connection between the steel mold 100 and the first pipe base 210 and the second pipe base 310, the connection between the first pipe base 210 and the first conduit 220, and the connection between the second pipe base 310 and the second conduit 320.
[0054] In this embodiment, the length of the second tube 311 is greater than the length of the first tube 211, so that the second conduit 320 installed on the second tube base 310 and the first conduit 220 installed on the first tube base 210 are not on the same vertical line, thus avoiding collision between the first conduit 220 and the second conduit 320.
[0055] In other embodiments, the length of the first tube 211 can be the same as the length of the second tube 311. When installing the first tube base 210 and the second tube base 310, the installation angle of the first tube base 210 can be different from that of the second tube base 310, so that the first conduit 220 installed on the first tube base 210 and the second conduit 320 installed on the second tube base 310 form an angle, thereby achieving a misalignment effect and preventing the first conduit 220 and the second conduit 320 from colliding.
[0056] like Figures 3 to 5As shown, in this embodiment, a first feed hole 110 and a second feed hole 120 are formed on the steel mold 100, and the first feed hole 110 and the second feed hole 120 are located at different heights; a first water-stop flange 130 is provided at the first feed hole 110, and a first fixing flange 212 is installed on the first water-stop flange 130; a second water-stop flange 140 is provided at the second feed hole 120, and a fourth fixing flange 312 is installed on the second water-stop flange 140. The first feed hole 110 and the second feed hole 120 are used for inputting concrete into the steel mold 100. The first water-stop flange 130 can increase the installation sealing between the first fixed flange 212 and the periphery of the first feed hole, and the second water-stop flange 140 can increase the installation sealing between the second fixed flange 213 and the periphery of the second feed hole, so as to further prevent water from seeping into the steel mold 100 from the installation points around the first fixed flange 212 and the first feed hole, and to prevent water from seeping into the installation points around the fourth fixed flange 312 and the second feed hole, and also to prevent concrete leakage. The diameter of the first feed hole 110 and the second feed hole 120 is 100mm, and the center distance between the holes is 3m in the vertical direction, with a symmetry error of less than or equal to 3mm.
[0057] To ensure that the strength of each flange meets the construction requirements, the outer diameter of the first fixed flange 212, the second fixed flange 213, the third fixed flange 221, the fourth fixed flange 312, the fifth fixed flange 313, the sixth fixed flange 321, the first water-stop flange 130, and the second water-stop flange 140 is 120mm, the inner diameter is 100mm, and the thickness is 10mm.
[0058] In this embodiment, for ease of maintenance and replacement, the first pipe base 210 and the second pipe base 310 are detachably mounted on the steel mold 100. In other embodiments, the first pipe base 210 and the second pipe base 310 can also be welded to the first feed hole 110 and the second feed hole 120 on the steel mold 100, respectively, as long as the weld meets the standard of preventing water seepage or concrete leakage.
[0059] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An underwater pile foundation casting construction structure for casting and reinforcing the outer side of existing pile foundations (001), characterized in that, include: The steel mold (100), the first flow guiding component (200), and the second flow guiding component (300) are provided. The steel mold (100) is used to surround the outside of the existing pile foundation (001) and form a pouring space (400) between it and the existing pile foundation (001). The first flow guiding component (200) and the second flow guiding component (300) are respectively installed on the outside of the steel mold (100) and are connected to the pouring space (400) for connecting a concrete conveying device so that concrete can be input into the pouring space (400) through the first flow guiding component (200) and the second flow guiding component (300). The first flow guiding component (200) and the second flow guiding component (300) are respectively located at different heights on the steel mold (100). A first seal (500) and a second seal (600), wherein the first seal (500) is installed between the steel mold (100) and the first flow guide assembly (200); and the second seal (600) is installed between the steel mold (100) and the second flow guide assembly (300).
2. The underwater pile foundation casting construction structure according to claim 1, characterized in that, The first flow guiding assembly (200) includes a first pipe base (210) and a first conduit (220). The first pipe base (210) is installed on the outside of the steel mold (100). One end of the first conduit (220) is installed on the first pipe base (210), and the other end is used to connect to a concrete conveying device. The first sealing element (500) is installed between the steel mold (100) and the first pipe base (210).
3. The underwater pile foundation casting construction structure according to claim 2, characterized in that, The first pipe base (210) includes a first pipe body (211), a first fixed flange (212) and a second fixed flange (213). The first fixed flange (212) and the second fixed flange (213) are respectively installed at both ends of the first pipe body (211). The first fixed flange (212) is installed on the steel mold (100), and one end of the first conduit (220) is installed on the second fixed flange (213).
4. The underwater pile foundation casting construction structure according to claim 3, characterized in that, The first conduit (220) has a third fixed flange (221) formed at one end where the first pipe base (210) is installed. The third fixed flange (221) is installed on the second fixed flange (213), and a third seal (700) is installed between the second fixed flange (213) and the third fixed flange (221).
5. The underwater pile foundation casting construction structure according to claim 4, characterized in that, A first annular groove (2121) is formed on the first fixed flange (212), and a second annular groove (2131) is formed on the second fixed flange (213). The first seal (500) and the third seal (700) are respectively installed in the first annular groove (2121) and the second annular groove (2131).
6. The underwater pile foundation casting construction structure according to claim 3, characterized in that, The second flow guiding assembly (300) includes a second pipe base (310) and a second conduit (320). The second pipe base (310) is installed on the outside of the steel mold (100). One end of the second conduit (320) is installed on the second pipe base (310), and the other end is used to connect to a concrete conveying device. The second seal (600) is installed between the steel mold (100) and the second pipe base (310).
7. The underwater pile foundation casting construction structure according to claim 6, characterized in that, The second pipe base (310) includes a second pipe body (311), a fourth fixed flange (312) and a fifth fixed flange (313), wherein the fourth fixed flange (312) and the fifth fixed flange (313) are respectively installed at both ends of the second pipe body (311); the fourth fixed flange (312) is installed on the steel mold (100), and one end of the second conduit (320) is installed on the fourth fixed flange (312).
8. The underwater pile foundation casting construction structure according to claim 7, characterized in that, The second conduit (320) has a sixth fixed flange (321) formed at one end where the second pipe base (310) is installed. The sixth fixed flange (321) is installed on the fifth fixed flange (313), and a fourth seal (800) is installed between the fifth fixed flange (313) and the sixth fixed flange (321).
9. The underwater pile foundation casting construction structure according to claim 8, characterized in that, A third annular groove (3121) is formed on the fourth fixed flange (312), and a fourth annular groove (3131) is formed on the fifth fixed flange (313). The second seal (600) and the fourth seal (800) are respectively installed in the third annular groove (3121) and the fourth annular groove (3131).
10. The underwater pile foundation casting construction structure according to claim 7, characterized in that, The steel mold (100) has a first feed hole (110) and a second feed hole (120) formed on it, and the first feed hole (110) and the second feed hole (120) are located at different heights respectively; a first water-stop flange (130) is provided at the first feed hole (110), and a first fixing flange (212) is installed on the first water-stop flange (130); a second water-stop flange (140) is provided at the second feed hole (120), and a fourth fixing flange (312) is installed on the second water-stop flange (140).