Prefabricated support for integrally pouring reinforced concrete foundation of large-diameter drainage pipeline

Abstract

The utility model provides a prefabricated support for integrally pouring a steel-concrete foundation of a large-diameter drainage pipeline, which comprises a supporting structure, a steel pipe and a steel pipe, the number of the limiting modules is two, and the limiting modules are connected with the supporting structure and located on the two sides of the supporting structure; wherein the limiting module is provided with a template clamping groove, and the template clamping groove is used for placing a building template. The reinforcing steel bars are preset in the supporting structure, the drainage pipeline is limited through the limiting module, then the building formwork is placed in the formwork clamping groove, and the whole construction can be completed only through one-time pouring. Through the device, the working period is shortened, the construction difficulty is reduced, and the overall construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of supports, and in particular to a prefabricated support for integrally casting a steel-concrete foundation of a large-diameter drainage pipeline. Background Art

[0002] Currently, in civil construction, water conservancy, and municipal engineering, for example, installation of concrete rainwater and sewage pipes requires the creation of a pipe bedding layer and foundation after trench excavation. However, this conventional process typically requires pouring the pipe foundation twice, which is time-consuming, difficult, and labor-intensive. Summary of the Invention

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, the first aspect of the present invention proposes a prefabricated support for integrally casting a steel-concrete foundation for a large-diameter drainage pipe.

[0005] In view of this, the first aspect of the present invention provides a prefabricated support for the integrated casting of steel-concrete foundations of large-diameter drainage pipes, including: a supporting structure, with steel bars arranged inside the supporting structure; a limiting module, with two limiting modules connected to the supporting structure and located on both sides of the supporting structure; wherein, a template slot is provided on the limiting module, and the template slot is used to place the building template.

[0006] In addition, the prefabricated support for integrated casting of steel-concrete foundation for large-diameter drainage pipes in the above technical solution provided by the present invention may also have the following additional technical features:

[0007] In some technical solutions of the present invention, optionally, the support structure includes: a steel plate; a support body, the support body is connected to the steel plate, and the support body can provide support for the drainage pipe.

[0008] In some technical solutions of the present invention, optionally, a portion of the longitudinal steel bars is embedded in the support body, both sides of the longitudinal steel bars extend out of the support body, there are multiple longitudinal steel bars, and the longitudinal steel bars are used for binding the steel bars.

[0009] In some technical solutions of the present invention, optionally, pre-embedded distribution bars are embedded inside the support body and located at the bottom of the support body.

[0010] In some technical solutions of the present invention, optionally, a lifting channel is provided on the limiting module.

[0011] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0013] Figure 1 One of the schematic diagrams of a prefabricated support for integrated casting of a steel-concrete foundation for a large-diameter drainage pipe according to an embodiment of the present utility model is shown;

[0014] Figure 2 One of the schematic diagrams of a prefabricated support for integrated casting of a steel-concrete foundation for a large-diameter drainage pipe according to an embodiment of the present utility model is shown;

[0015] in, Figures 1 to 2 The corresponding relationship between the reference numerals and component names is as follows:

[0016] 1. Steel bar pad; 2. Support body; 3. Formwork slot; 4. Lifting channel; 5. Longitudinal steel bar; 6. Embedded distribution bar; 7. Limit module. DETAILED DESCRIPTION

[0017] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0019] Refer to the following Figures 1 to 2 The present invention describes a prefabricated support for integrated casting of a steel-concrete foundation for a large-diameter drainage pipe according to some embodiments of the present invention.

[0020] In one embodiment of the present invention, Figure 1 and Figure 2 As shown, a prefabricated support for the integrated casting of steel-concrete foundation of large-diameter drainage pipes is proposed, including: a supporting structure, with steel bars arranged inside the supporting structure; a limiting module 7, two of which are connected to the supporting structure and located on both sides of the supporting structure; wherein, a template slot 3 is provided on the limiting module 7, and the template slot 3 is used to place the building template.

[0021] This utility model proposes a prefabricated support for the integrated casting of a steel-concrete foundation for large-diameter drainage pipes. Rebar is pre-set within the support structure, and a limiting module (7) is used to limit the position of the drainage pipe. Then, a building template is placed within the template slot, allowing the entire construction process to be completed in a single casting. This device shortens the work cycle, reduces construction difficulty, and improves overall construction efficiency.

[0022] Furthermore, in some embodiments of the present invention, the support structure includes: a steel plate 1; a support body 2, the support body 2 is connected to the steel plate 1, and the support body 2 can provide support for the drainage pipe.

[0023] In this embodiment, the reinforcement plate 1 is a rectangular precast concrete slab, providing a platform for rebar binding. Its top surface is roughened, allowing for better bonding with the subsequent concrete pouring. The support 2 is a rectangular precast concrete block, with its top surface parallel to the bottom of the drainage pipe, providing support for the pipe and transferring vertical loads to the foundation. The coordination between the reinforcement plate 1 and the support 2 enhances the overall structural strength and stability, reducing construction difficulty and cost.

[0024] Furthermore, in some embodiments of the present invention, a portion of the longitudinal steel bars 5 is embedded in the support body 2, both sides of the longitudinal steel bars 5 extend out of the support body 2, there are multiple longitudinal steel bars 5, and the longitudinal steel bars 5 are used for binding steel bars.

[0025] In this embodiment, longitudinal reinforcement 5 is pre-embedded within support body 2 to enhance its load-bearing capacity and prevent cracks. The longitudinal reinforcement 5 extends beyond support body 2 on both sides, facilitating subsequent reinforcement tying. The use of longitudinal reinforcement 5 reduces the workload of on-site reinforcement cutting, bending, and tying. Furthermore, it eliminates the need for a primary pouring of the reinforcement before subsequent construction, optimizing the structural design, reducing construction time, and improving efficiency.

[0026] Furthermore, in some embodiments of the present invention, pre-embedded distribution ribs 6 are embedded inside the support body 2 and are located at the bottom of the support body 2 .

[0027] In this embodiment, pre-embedded distribution bars 6 are embedded within the support body 2. This evenly distributes the external forces acting on the support over a wide area, stabilizes the position of the stressed reinforcement, and resists the tensile forces generated by concrete shrinkage and temperature fluctuations during hardening. Pre-embedded distribution bars 6 reduce localized stress concentration and improve the overall load-bearing capacity of the structure. Furthermore, because they are pre-installed within the support body 2, construction time is reduced and efficiency is improved.

[0028] Furthermore, in some embodiments of the present invention, the hoisting channel 4 is provided on the limiting module 7 .

[0029] In this embodiment, the hoisting channel 4 is located on the inner side of the limiting module 7 on both sides, which provides convenience for the support hoisting and installation and ensures the stability of the support hoisting.

[0030] Specifically, the steel bar pad 1, the support and limit module 7, the template slot 33, the lifting channel 4, the longitudinal steel bar 5, and the embedded distribution bar 6 are an integrated precast concrete structure.

[0031] Optionally, the limit module 7 is 20 cm wide and has a height that matches the required size for pipeline installation, preventing lateral displacement of the pipeline, avoiding friction and sliding at the bottom of the pipeline, and ensuring the straightness of the pipeline installation.

[0032] Optionally, the width of the template slot 3 is 15 mm, and the depth of the template slot 3 is 100 mm, which is used to install the pipeline foundation template and provide support and limitation for the template, so as to facilitate the one-time pouring of the pipeline foundation.

[0033] Optionally, the diameter of the lifting channel 4 is 50 mm, and the center of the hole is 15-20 cm away from the top of the support body. It is used for the lifting and installation of the prefabricated support. The lifting belt is easy to extract and improves the installation efficiency.

[0034] Optionally, the support body 2 is 50 cm long, and its width and height are adapted to the steel-concrete foundation size required for pipeline installation, providing support for the pipeline and bearing the weight of the pipeline, facilitating one-time pouring of foundation concrete and grouting construction of the pipeline interface, ensuring the integrity and stability of the pipeline, facilitating the grouting construction of the pipeline interface, and ensuring the quality of the interface construction.

[0035] Optionally, the steel bar pad 1 is 20 cm long on each side, and the width and height are adapted to the size of the cushion layer and steel bar protective layer required for pipeline installation, providing a platform for the steel bar binding of the pipeline foundation, enabling rapid installation of the bottom steel bars, accurately controlling the thickness of the protective layer and providing support for the longitudinal steel bars 5, thereby expanding the prefabricated support foundation, dispersing the vertical load, and better adapting to the foundation bearing capacity of various terrains.

[0036] Optionally, the longitudinal steel bars 5 are embedded in the support body 2 and located on the top surface of the steel bar pad 1 to enhance the bearing capacity of the support and prevent cracks. The two sides of the longitudinal steel bars 5 extend out of the support body 2 to facilitate subsequent steel bar binding.

[0037] Optionally, pre-embedded distribution reinforcement 6 is embedded inside the support body 2 and located on the top surface of the steel plate 1 to evenly distribute the external force borne by the support to a wider range, fix the position of the stressed steel bars, and resist the tensile force caused by shrinkage and temperature changes when the concrete hardens.

[0038] Optionally, the prefabricated support is cast with C30 concrete, the steel bars are HPB300 or HPB400 steel bars, and the steel bar protective layer is 50mm.

[0039] The utility model proposes a prefabricated support for the integrated casting of steel-concrete foundation of a large-diameter drainage pipe, which provides support for the pipe through the support body 2, bears the weight of the pipe, and can facilitate the caulking construction at the bottom interface of the pipe during the pipe installation stage. The steel bar pad 1 provides a platform for the steel bar binding of the pipe foundation, can quickly install the bottom steel bar, accurately control the thickness of the protective layer and provide support for the longitudinal steel bar 5, expand the foundation of the prefabricated support, disperse the vertical load, and better adapt to the bearing capacity of the foundation of various terrains. The limiting module 7 prevents lateral displacement of the pipeline, avoids friction and sliding at the bottom of the pipeline, and ensures the straightness of the pipeline installation. The template slot 3 is used to install the pipe foundation template and provide support and limitation for the template, so as to realize the one-time casting of the pipe foundation. The lifting channel 4 is used for the lifting installation of the prefabricated support, and the lifting belt is easy to extract, which improves the installation efficiency.

[0040] The overall workflow is as follows: The prefabricated supports are fabricated off-site. Specifically, the prefabricated pedestal is assembled, reinforced with steel bars, and a formwork is erected. The formwork is preferably high-strength, pre-formed steel. Cement concrete is poured into the formwork and vibrated with a vibrator until the concrete slurry stops and bubbles no longer form. A layer of plastic film is then covered over the prefabricated concrete base and cured until the concrete reaches the desired strength. This prefabricated support design allows for direct processing and transport to the trench for installation, saving installation steps and time.

[0041] Trench excavation. After the trench excavation is completed, clean the trench bottom according to the designed trench bottom elevation, verify whether the soil foundation meets the designed foundation bearing capacity requirements, and check the centerline position and bearing surface elevation of the pipeline and support.

[0042] The prefabricated supports are hoisted and installed. The excavated trench bottom is manually leveled, and the placement of the prefabricated supports is measured and staked out. The supports are expected to be arranged along the pipeline's laying direction, with spacing appropriate to the length of each pipeline section, ensuring a prefabricated support is located in the middle of each pipeline section. The prefabricated supports are hoisted and installed using a crane. The hoisting belt is used to lift the prefabricated supports through hoisting channel 4 to the designated location at the bottom of the trench.

[0043] During the installation of steel bars, steel bar tying operation is performed on the steel bar pad 1 , the steel bars are tied and connected with the longitudinal steel bars 5 , and the steel bar pad 1 is used to support the steel bars and control the thickness of the protective layer.

[0044] Pipeline installation: hoist each section of pipeline onto the top surface of the prefabricated support body 2 and make socket connections. After the installation is completed, seal the pipeline interface according to the design requirements.

[0045] The template is made and installed, and the pipeline foundation template is installed in the template slot 33 of the prefabricated support.

[0046] After the concrete pouring and formwork installation are completed and accepted by the supervisor, the pipeline foundation concrete is poured in one go (one layer is poured every 25 cm), so that the concrete slurry fills the gaps between the prefabricated supports and the gaps between the pipeline and the supports. This completes the pouring of the pipeline foundation and the pipeline cushion layer, avoiding the work of roughening and cleaning the contact surface caused by two pourings.

[0047] For pipeline backfill, the backfill materials used must meet the design requirements. Dumping, dry filling, miscellaneous filling, and water filling are strictly prohibited. The thickness of each layer of backfill should be controlled at 20cm by frog-type rammer and 30cm by roller. The layer thickness should be controlled by the "ruler layer control method". The surface of the filling and compaction should be flat, without obvious marks, and no looseness should be allowed. When constructing in sections, the layers should be clear, steps should be left on each layer, and the uncompacted parts should be removed. Samples should be taken in time to ensure that the compaction degree meets the design requirements.

[0048] The drainage pipe constructed by the prefabricated support can realize the one-time pouring of the pipe cushion layer and the pipe reinforced concrete foundation, improve the construction efficiency, and ensure the integrity and stability of the pipe; the bottom steel bars of the reinforced concrete foundation can be quickly installed, the thickness of the protective layer can be accurately controlled, and support can be provided for the longitudinal steel bars 5; the displacement of the pipe can be limited, friction and sliding at the bottom of the pipe can be avoided, and the straightness of the pipe installation can be ensured; space can be left at the bottom of the pipe for filling the pipe interface to ensure the construction quality of the pipe interface; the steel plate 1 can be used as an expanded foundation to disperse the vertical load and better adapt to the foundation bearing capacity of various terrains; standardized prefabricated components can be used, which are easy to install and can effectively reduce construction costs.

[0049] In the claims, specification and drawings of the present invention, the term "plurality" refers to two or more. Unless otherwise expressly defined, the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the purpose of more conveniently describing the present invention and making the description process simpler. It is not intended to indicate or imply that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation. Therefore, these descriptions cannot be understood as limiting the present invention. The terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0050] In the claims, specification, and drawings of the present invention, the terms "one embodiment," "some embodiments," "a specific embodiment," and the like mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification, and drawings of the present invention, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A prefabricated support for integrated casting of steel-concrete foundation of large-diameter drainage pipe, characterized in that: include: A supporting structure, wherein steel bars are provided inside the supporting structure; Limiting modules (7), the number of the limiting modules (7) is two, the limiting modules (7) are connected to the supporting structure and are located on both sides of the supporting structure; Wherein, the position limiting module (7) is provided with a template slot (3), and the template slot (3) is used for placing a building template.

2. The prefabricated support for integrated casting of steel-concrete foundation of large-diameter drainage pipe according to claim 1 is characterized in that: The support structure comprises: Steel bar pad (1); A support body (2), the support body (2) is connected to the steel bar pad (1), and the support body (2) can provide support for the drainage pipe.

3. The prefabricated support for integrated casting of steel-concrete foundation of large-diameter drainage pipe according to claim 2 is characterized in that: A portion of the longitudinal steel bars (5) is embedded in the support body (2), with both sides of the longitudinal steel bars (5) extending out of the support body (2). There are multiple longitudinal steel bars (5), and the longitudinal steel bars (5) are used for tying steel bars.

4. The prefabricated support for integrated casting of steel-concrete foundation for large-diameter drainage pipes according to claim 3 is characterized in that: Pre-embedded distribution ribs (6), the pre-embedded distribution ribs (6) are embedded inside the support body (2) and are located at the bottom of the support body (2).

5. The prefabricated support for integrated casting of steel-concrete foundation of large-diameter drainage pipe according to claim 4 is characterized in that: A hoisting channel (4), wherein the hoisting channel (4) is provided on the limiting module (7).

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