A single-side form fixing device for a top-down method pile inter-concrete baffle
Patent Information
- Application Number
- CN202522572987.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-04
AI Technical Summary
[0002]桩间混凝土挡板常用于永久性、安全系数较高的边坡支护结构体系，其施工过程中常用逆作法、分层分段进行施工作业，加固方式采用单边支模的形式，而现有的单侧支模系统，安装工艺复杂，容易发生爆模，桩间混凝土挡板交界处存在振捣困难，存在桩间混凝土挡板单边支模加固困难，以及在桩间混凝土挡板逆作法施工时，交界处难以振捣的问题
通过将水平钢筋组件的两端分别以植入的方式嵌入相邻的两根灌注桩内，以灌注桩作为受力点，每排加固组件与对应的水平钢筋组件焊接，形成稳定的网片结构，提供单边支模着力点，提高单边支模的加固效果，单边支模安装简便，有效降低爆模的情况发生。
Smart Images
Figure CN224902180U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building equipment, specifically to a single-sided formwork fixing device for concrete baffles between piles in reverse construction method. Background Technology
[0002] Concrete retaining walls between piles are commonly used in permanent slope protection structures with high safety factors. During construction, they are often constructed using the reverse construction method and in layers and sections. The reinforcement method is to use single-sided formwork. However, the existing single-sided formwork system has a complex installation process and is prone to formwork bursting. There are difficulties in vibration at the junction of the concrete retaining walls between piles, making it difficult to reinforce the single-sided formwork of the concrete retaining walls between piles, and making it difficult to vibrate at the junction when using the reverse construction method for the concrete retaining walls between piles. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of the aforementioned technologies by proposing a single-sided formwork fixing device for concrete baffles between piles in the reverse construction method, thereby solving the problems mentioned above.
[0004] This utility model provides a single-sided formwork fixing device for concrete retaining walls between piles in the reverse construction method, including a template, a joist, several horizontal steel reinforcement assemblies, and several rows of reinforcing assemblies. The two ends of the several horizontal steel reinforcement assemblies are respectively inserted into two adjacent cast-in-place piles, and the several horizontal steel reinforcement assemblies are arranged at equal intervals along the vertical direction of the cast-in-place piles. The two ends of the template are respectively attached to the outer side of two adjacent cast-in-place piles. The joist is connected to the outside of the template. The several rows of reinforcing assemblies are connected to the joist. Each row of reinforcing assemblies passes through the template and is connected to the corresponding horizontal steel reinforcement assembly to form a mesh structure. The template is provided with several reserved tongues and grooves for pouring.
[0005] Preferably, the horizontal reinforcement assembly includes two horizontal reinforcement bars and four anchor bars. The two ends of the two horizontal reinforcement bars are respectively connected to the corresponding anchor bars through connecting reinforcement bars, and the anchor bars are implanted into the cast-in-place pile.
[0006] Preferably, the reinforcing component includes a tie rod and a butterfly clip, the butterfly clip being snapped onto the keel, the tie rod being connected to the butterfly clip, and one end of the tie rod passing through the template and connecting to the horizontal steel reinforcement component.
[0007] Preferably, the keel includes an inner keel and an outer keel, the inner keel is connected to the outside of the template, the outer keel is connected to the inner keel, and the reinforcing component is connected to the outer keel.
[0008] Preferably, the inner keel includes several wooden beams, which are vertically connected to the template in a horizontal direction.
[0009] Preferably, the outer keel includes several double steel pipe groups, which are equidistantly connected to the inner keel in a vertical direction.
[0010] Preferably, the double steel pipe assembly includes a first steel pipe and a second steel pipe, with a gap between the first steel pipe and the second steel pipe for the reinforcing component to pass through.
[0011] Preferably, the reserved tongue and groove is set at a 45-degree angle.
[0012] Compared with the prior art, the present invention has the following advantages: By embedding the two ends of the horizontal steel reinforcement assembly into two adjacent cast-in-place piles in an implantable manner, and using the cast-in-place piles as the stress points, each row of reinforcement components is welded to the corresponding horizontal steel reinforcement assembly to form a stable mesh structure, providing a single-sided formwork support point, improving the reinforcement effect of single-sided formwork, simplifying the installation of single-sided formwork, and effectively reducing the occurrence of formwork bursts.
[0013] By reserving a tongue and groove joint to pour concrete into the inner side of the formwork, i.e. the side where the horizontal steel reinforcement assembly is set, it is easier to vibrate the concrete baffle between the piles, thus reducing the difficulty of vibration. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a top view of the structural diagram of a single-sided formwork fixing device for concrete baffle between piles in the reverse construction method according to the present invention. Figure 2 This is a front view structural diagram of a single-sided formwork fixing device for concrete baffle between piles in reverse construction according to this utility model. Figure 3 for Figure 2 A magnified structural diagram of part A in the middle; Figure 4 This is a schematic diagram of the template and the reserved tongue and groove structure of this utility model; In the diagram, 1. Template; 2. Keel; 3. Inner keel; 4. Timber; 5. Outer keel; 6. Double steel pipe assembly; 7. First steel pipe; 8. Second steel pipe; 9. Gap; 10. Horizontal rebar assembly; 11. Horizontal rebar; 12. Rebar anchoring; 13. Connecting rebar; 14. Reinforcement assembly; 15. Tie rod; 16. Butterfly clip; 17. Cast-in-place pile; 18. Reserved tongue and groove joint; 19. Baffle; 20. Boundary line. Detailed Implementation
[0016] Example Reference Figures 1 to 4 This utility model provides a single-sided formwork fixing device for a concrete baffle between piles in the reverse construction method. It includes a template 1, a keel 2, several horizontal steel reinforcement assemblies 10, and several rows of reinforcing assemblies 14. The two ends of each of the horizontal steel reinforcement assemblies 10 are respectively inserted into two adjacent cast-in-place piles 17, and the horizontal steel reinforcement assemblies 10 are vertically equidistant along the cast-in-place piles 17. By setting multiple horizontal steel reinforcement assemblies 10, the template 1 is fixed, enhancing the fixing effect. The two ends of the template 1 are respectively attached to the outer surfaces of two adjacent cast-in-place piles 17. The end faces of the template 1 are arc-shaped, effectively preventing concrete leakage from the gaps 9 when pouring the concrete baffle 19. The keel 2 is connected to the outside of the template 1, and the several rows of reinforcing assemblies... 14 is connected to the keel 2. Each row of reinforcing components 14 includes several reinforcing components 14. Each row of reinforcing components 14 passes through the template 1 and is connected to the corresponding horizontal steel bar component 10. The two ends of the horizontal steel bar component 10 are respectively embedded into two adjacent cast-in-place piles 17 in an implanted manner. The cast-in-place piles 17 serve as stress points. Each row of reinforcing components 14 is welded to the corresponding horizontal steel bar component 10 to form a stable mesh structure, providing a single-sided formwork support point, improving the reinforcement effect of single-sided formwork, and making single-sided formwork installation simple and effectively reducing the occurrence of formwork bursting. The template 1 is provided with several reserved tongue and groove joints 18 for pouring. At the junction of the pile-to-pile concrete baffle 19 constructed from top to bottom in the reverse construction method, a reserved tongue and groove joint 18 at a 45-degree angle is reserved for the operation area of the vibrator, providing concrete forming quality.
[0017] The horizontal steel reinforcement assembly 10 includes two horizontal steel bars 11 and four anchor bars 12. The two ends of the two horizontal steel bars 11 are respectively connected to the corresponding anchor bars 12 through connecting steel bars 13. One end of the horizontal steel bar 11 is welded to the connecting steel bar 13, and the connecting steel bar 13 is welded to the anchor bars 12. The free end of the anchor bars 12 is inserted into the cast-in-place pile 17. Both the horizontal steel bars 11 and the anchor bars 12 are horizontally arranged.
[0018] The reinforcement component 14 includes a tie rod 15 and a butterfly buckle 16. The butterfly buckle 16 is snapped onto the keel 2. The tie rod 15 is movably connected to the butterfly buckle 16. One end of the tie rod 15 passes through the template 1 and is connected to the horizontal steel bar assembly 10. The template 1 has a through hole for the tie rod 15 to pass through. The tie rod 15 is welded to the horizontal steel bar 11 and the anchor bar 12 to form a stable mesh structure.
[0019] The keel 2 includes an inner keel 3 and an outer keel 5. The inner keel 3 is connected to the outside of the template 1, and the outer keel 5 is connected to the inner keel 3. The reinforcing component 14 is connected to the outer keel 5. The inner keel 3 includes several wooden beams 4, which are vertically connected to the template 1 in the horizontal direction. The outer keel 5 includes several double steel pipe groups 6, which are equidistantly connected to the inner keel 3 in the vertical direction. The double steel pipe groups 6 are equidistantly arranged in the vertical wind direction. Each double steel pipe group 6 includes a first steel pipe 7 and a second steel pipe 8, with a gap 9 between the first steel pipe 7 and the second steel pipe 8 for the reinforcing component 14 to pass through.
[0020] The butterfly buckle 16 of the reinforcing component 14 is snapped onto the first steel pipe 7 and the second steel pipe 8, and the tie rod 15 of the reinforcing component 14 passes through the gap 9 and is welded to the horizontal steel bar component 10.
[0021] Rebar 12 is inserted into the cast-in-place pile 17 that has been poured with concrete. The rebar 12 is welded to the horizontal rebar 11 through the connecting rebar 13, thus completing the installation of the horizontal rebar 11 pre-embedded in the baffle 19 to be poured. The horizontal rebar 11 and the rebar 12 of the horizontal rebar assembly 10 are welded and fixed to the tie rod 15. The single-sided formwork template 1 is installed. The template 1 has through holes corresponding to the tie rod 15, allowing one end of the tie rod 15 to pass through the outside of the template 1. A 45-degree pre-reserved tongue and groove 18 is set on the template 1. Several wooden beams 4 are vertically installed on the outside of the template 1 along the horizontal direction. Several double steel pipe groups 6 are horizontally installed on the multiple wooden beams 4 along the vertical direction. The butterfly buckle 16 is snapped onto the double steel pipe group 6 and the tie rod 15 is locked. The template 1 is reinforced with the cast-in-place pile 17 as the force point. Concrete is poured into the inside of the template 1, that is, the side where the horizontal rebar assembly 10 is set, through the pre-reserved tongue and groove 18.
[0022] The above description is merely a preferred embodiment of this utility model and does not constitute any limitation on this utility model. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technology of this utility model without departing from the scope of the technical solution of this utility model shall fall within the protection scope of this technical solution.
Claims
1. A device for fixing single-sided formwork of concrete retaining wall between piles in reverse construction method, characterized in that: The system includes a template, a keel, several horizontal steel reinforcement components, and several rows of reinforcing components. The two ends of the horizontal steel reinforcement components are respectively inserted into two adjacent cast-in-place piles, and the horizontal steel reinforcement components are equidistantly arranged vertically along the cast-in-place piles. The two ends of the template are respectively attached to the outer surfaces of two adjacent cast-in-place piles. The keel is connected to the outside of the template. The several rows of reinforcing components are connected to the keel. Each row of reinforcing components passes through the template and connects to the corresponding horizontal steel reinforcement component to form a mesh structure. The template is provided with several reserved tongue and groove joints for pouring.
2. The single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 1, characterized in that: The horizontal reinforcement assembly includes two horizontal steel bars and four anchor bars. The two ends of the two horizontal steel bars are respectively connected to the corresponding anchor bars through connecting steel bars, and the anchor bars are implanted into the cast-in-place pile.
3. A single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 1, characterized in that; The reinforcement assembly includes tie rods and butterfly clips. The butterfly clips are snapped onto the keel, and the tie rods are connected to the butterfly clips. One end of the tie rods passes through the template and is connected to the horizontal steel reinforcement assembly.
4. A single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 1, characterized in that: The keel includes an inner keel and an outer keel. The inner keel is connected to the outside of the template, and the outer keel is connected to the inner keel. The reinforcing component is connected to the outer keel.
5. A single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 4, characterized in that: The inner keel includes several wooden beams, which are vertically connected to the template in a horizontal direction.
6. A single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 4, characterized in that: The outer keel includes several double steel pipe groups, which are equidistantly connected to the inner keel along the vertical direction.
7. A single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 6, characterized in that: The double steel pipe assembly includes a first steel pipe and a second steel pipe, with a gap between the first steel pipe and the second steel pipe for the reinforcing component to pass through.
8. A single-sided formwork fixing device for concrete baffle between piles in reverse construction method according to claim 1, characterized in that: The reserved tongue and groove is set at a 45-degree angle.