Slope protection framework pouring structure
By combining side formwork with precast composite slabs, the slope protection skeleton nodes can be cast in one go, solving the problems of long construction period and insufficient flatness, and improving construction efficiency and the strength of skeleton nodes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CCCC THIRD HIGHWAY ENG CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-21
AI Technical Summary
The existing slope protection framework nodes have a long construction cycle, and the manual finishing operation depends on the skill level of the workers, which can easily lead to problems such as insufficient surface flatness and cracks.
Two side formworks are used in conjunction with precast composite slabs to form a pouring gap. Concrete is injected through the grouting ports on the precast composite slabs to achieve one-time casting of the slope protection skeleton nodes. The side formworks are fixed by tie rods and anchor steel bars to ensure the stability and strength of the pouring process.
This reduces the construction difficulty of the slope protection framework nodes, improves construction efficiency, ensures the strength and flatness of the framework nodes, and reduces the construction cycle and reliance on manual operation.
Smart Images
Figure CN224148742U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of slope protection reinforcement, and in particular to a slope protection skeleton casting structure. Background Technology
[0002] Slope protection frame is a commonly used structural form in slope protection engineering. It is mainly a frame structure formed by splicing together several frame nodes, used to reinforce and protect the soil surface of the slope.
[0003] The existing slope protection framework nodes are mainly constructed through processes such as formwork support and concrete pouring. Specifically, two side formworks are spliced on the slope surface to form a pouring gap, and then low-slump concrete is poured in the pouring gap formed by the two side formworks, and the surface is finished manually.
[0004] Regarding the aforementioned technologies, due to the sloping nature of the slope, each framework node requires multiple pours and manual finishing to complete the pouring. On the one hand, the construction period is long; on the other hand, manual finishing is highly dependent on the skill level of the workers, and is prone to problems such as insufficient surface smoothness and cracks. Therefore, there is room for improvement. Utility Model Content
[0005] To facilitate the casting construction of the slope protection frame nodes, this application provides a slope protection frame casting structure.
[0006] This application provides a slope protection frame casting structure, which adopts the following technical solution:
[0007] A slope protection frame casting structure includes two side templates vertically supported on the slope surface, the two side templates being connected by several tie rods, and the two side templates being spliced together to form a casting gap; a precast composite slab is supported above the casting gap, the precast composite slab is configured to seal the top opening of the casting gap, and the precast composite slab is arranged parallel to the slope surface; a grouting port is opened at the inclined upper end of the precast composite slab, and the grouting port is connected to the casting gap.
[0008] By adopting the above technical solution, a casting cavity for the skeleton node is formed by two side templates and precast composite slabs. When casting the skeleton node of the slope protection, after sealing both ends of the casting gap, concrete is injected into the casting gap formed by the two side templates through the grouting port on the precast composite slab. This allows for one-time casting of the slope protection skeleton structure, which effectively reduces the construction difficulty of the slope protection skeleton node compared to the traditional construction method of casting the slope protection skeleton node in multiple stages and then manually finishing the surface. At the same time, the precast composite slab can be used as part of the slope protection skeleton node after casting, which helps to improve the strength of the slope protection skeleton node.
[0009] Preferably, the precast composite slab is located between the two side templates, and the precast composite slab has several connecting pipes embedded in the threaded rods of the tie rods, with the threaded rods of the tie rods all passing through the corresponding connecting pipes.
[0010] By adopting the above technical solution, after the precast composite slab is placed between the two side templates, the threaded rods of the tie rods are inserted into the two side templates, and at the same time, the threaded rods are inserted into the corresponding connecting pipes on the precast composite slab. This can achieve the goal of stably supporting the precast composite slab on the pouring gap, limiting the displacement of the precast composite slab when concrete is subsequently poured into the pouring gap to form the slope protection skeleton node, which is conducive to better concrete forming.
[0011] Preferably, the bottom outer side of the two side templates is provided with a connecting plate, and the connecting plate is provided with anchor steel bars, the bottom end of which is inserted into the slope surface of the slope protection.
[0012] By adopting the above technical solution, after the side formwork is placed on the slope surface and adjusted into position, the anchor steel bars are inserted through the connecting plate and driven into the slope surface. The anchor steel bars are used to connect and limit the side formwork, so as to limit the displacement of the side formwork caused by the subsequent pouring of concrete.
[0013] Preferably, the bottom of the precast composite slab is provided with a plurality of embedded parts, the embedded parts including a plurality of reinforcing bars, the reinforcing bars protruding from the bottom of the precast composite slab.
[0014] By adopting the above technical solution, after pouring concrete structure into the gap between the two side formworks to form a skeleton node, the cast-in-place concrete structure of the slope protection skeleton node and the precast composite slab can be connected by inserting reinforcing bars, which helps to improve the connection and integration of the slope protection skeleton node and the precast composite slab.
[0015] Preferably, the top ends of adjacent reinforcing bars are connected by connecting bars, which are located within the precast composite slab.
[0016] By adopting the above technical solution, the connecting bars are used to connect and limit the two adjacent insertion bars of the adjacent embedded parts, which is conducive to improving the overall strength and connection integrity of the insertion bars, and thus facilitates the better connection of the embedded parts to the cast-in-place concrete structure of the precast composite slab and the slope protection skeleton node.
[0017] Preferably, the precast composite slab has a steel mesh embedded inside.
[0018] By adopting the above technical solution and setting up the steel mesh, the overall strength of the precast composite slab can be improved.
[0019] Preferably, all the connecting pipes are tied and fixed to the steel mesh.
[0020] By adopting the above technical solution, during the subsequent pouring of the slope protection frame node, the load applied to the connecting pipe can be promptly distributed to the steel mesh inside the precast composite slab. This helps to reduce the direct application of external loads to the connecting pipe, thus preventing damage and cracking of the connecting pipe and the area of the precast composite slab near the connecting pipe.
[0021] Preferably, both ends of the connecting pipe are coaxially connected with water-stop wing rings.
[0022] By adopting the above technical solution, the water-stop wing rings at both ends of the connecting pipe are used to prevent subsequent external water vapor from directly seeping into the interior of the precast composite slab through the gap between the connecting pipe and the precast composite slab, and corroding the steel mesh inside the precast composite slab, which is beneficial to improving the waterproof performance between the connecting pipe and the precast composite slab.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. By using two side formworks and precast composite slabs to form the pouring space for the slope protection skeleton node, and then sealing both ends of the pouring gap formed by the two side formworks, concrete grout is injected into the pouring gap formed by the two side formworks through the grouting holes on the precast composite slab. This allows the slope protection skeleton node to be poured and formed in one go, effectively reducing the pouring difficulty of the slope protection skeleton node.
[0025] 2. By pre-embedding connecting pipes in the precast composite slab, during the process of connecting the two side templates with tie rods, the threaded rods of the tie rods are inserted into the connecting pipes of the precast composite slab, thereby completing the connection and limiting of the templates on both sides and achieving the stable support of the precast composite slab.
[0026] 3. By setting up anchor steel bars on the outside of the side formwork, when erecting the side formwork, the anchor steel bars passing through the connecting plate are driven into the slope surface of the slope protection to achieve stable support and fixation of the side formwork on the slope surface of the slope protection, thus limiting the possibility of displacement of the two side formworks due to subsequent injection of concrete grout. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the internal structure of the slope protection frame structure according to an embodiment of this application.
[0028] Figure 2 This is an overall schematic diagram illustrating the slope protection frame structure in the embodiments of this application.
[0029] Figure 3 yes Figure 1 Enlarged schematic diagram of part A in the middle.
[0030] Figure 4 This is a schematic diagram illustrating the internal structure of the prefabricated composite slab in an embodiment of this application.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. Slope protection; 2. Side formwork; 20. Reinforcing steel pipe; 21. Connecting plate; 22. Anchored steel bar; 3. Precast composite slab; 30. Grouting port; 31. Steel mesh; 32. Connecting pipe; 321. Water-stop wing ring; 33. Embedded parts; 331. Inserted bar; 332. Connecting bar; 4. Tie rod; 41. Threaded rod; 42. Limiting nut. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0034] This application discloses a slope protection frame casting structure, referring to... Figure 1 and Figure 2 It includes two side formworks 2 and one precast composite slab 3. The two side formworks 2 are supported on the slope surface of the slope protection 1 and are connected by several tie rods 4. The two side formworks 2 cooperate to form a pouring gap. The precast composite slab 3 is supported and fixed above the pouring gap and is parallel to the slope surface of the slope protection 1. The precast composite slab 3 is set to seal the top opening of the pouring gap. The upper inclined end of the precast composite slab 3 is formed with a grouting port 30.
[0035] When casting the skeleton node, after sealing both ends of the casting gap, concrete is poured into the casting gap formed by the two side templates 2 through the grouting port 30 at the inclined upper end of the precast composite slab 3, so that the casting of the skeleton node of the slope protection 1 can be realized.
[0036] Reference Figure 1 and Figure 2 In this embodiment, the side template 2 is made of steel. Several reinforcing steel pipes 20 are vertically welded to the outside of the side template 2 along its own length direction, which not only improves the overall strength of the side template 2, but also facilitates the recycling of the side template 2.
[0037] Reference Figure 1 and Figure 3 The tie rod 4 includes a threaded rod 41 and two limiting nuts 42. Each side template 2 has a through hole for the threaded rod 41 to pass through. Both ends of the threaded rod 41 pass through the corresponding through holes and are respectively inserted into the two side templates 2. The two limiting nuts 42 are respectively threaded to both ends of the threaded rod 41 and are respectively pressed against the outside of the two side templates 2, so as to realize the connection and limiting of the two side templates 2 by the tie rod 4.
[0038] Each side formwork 2 has a protruding connecting plate 21 on its outer bottom. The connecting plate 21 is welded to the side formwork 2, and has a connecting through hole. Anchor steel bars 22 slide through the connecting plate 21 via the connecting through hole, and the bottom end of the anchor steel bars 22 is inserted into the slope surface of the slope protection 1. The anchor steel bars 22 are used to further limit and fix the side formwork 2, so as to limit the displacement and deformation of the side formwork 2 during the subsequent pouring of the slope protection 1 skeleton nodes. The sharp bottom end of the anchor steel bars 22 is designed to facilitate better driving of the anchor steel bars 22 into the slope surface of the slope protection 1 during actual construction.
[0039] Reference Figure 3 and Figure 4 The precast composite slab 3 has a steel mesh 31 embedded inside, which improves the overall strength of the precast composite slab 3. The precast composite slab 3 is located between two side formworks 2, and both sides of the precast composite slab 3 abut against the inner sides of the two side formworks 2. Several connecting pipes 32 are embedded in the threaded rods 41 corresponding to several tie rods 4 inside the precast composite slab 3; the threaded rods 41 are all installed through the corresponding connecting pipes 32, so that the tie rods 4 connect and limit the two side formworks 2, while the precast composite slab 3 is stably supported between the two side formworks 2, which is conducive to the better molding of the concrete poured in the pouring gap formed by the two side formworks 2.
[0040] Reference Figure 3 and Figure 4 Both ends of the connecting pipe 32 are coaxially fitted with water-stop wing rings 321. The setting of the water-stop wing rings 321 helps to extend the path of external water vapor entering the interior of the precast composite slab 3 through the gap between the precast composite slab 3 and the connecting pipe 32, and restricts external water vapor from directly entering the interior of the precast composite slab 3 through the gap between the precast composite slab 3 and the connecting pipe 32, thus preventing corrosion of the steel mesh 31 inside the precast composite slab 3.
[0041] All connecting pipes 32 are tied and fixed to the steel mesh 31 inside the precast composite slab 3, which helps to improve the integrity of the connection between the connecting pipes 32 and the steel mesh 31. This, in turn, helps to distribute the actual external load on the connecting pipes 32 to the steel mesh 31 in a timely manner during the subsequent concrete pouring process, reducing the deformation and damage of the concrete structure of the connecting pipes 32 and the area of the precast composite slab 3 near the connecting pipes 32.
[0042] Reference Figure 3 and Figure 4Several embedded parts 33 are also pre-embedded on the bottom side of the precast composite slab 3. These embedded parts 33 are evenly distributed along the length of the precast composite slab 3. Each embedded part 33 includes two reinforcing bars 331, the bottom ends of which extend into the pouring gap formed by the two side formwork 2. The tops of the two reinforcing bars 331 are connected by transverse connecting bars 332, which are tied and fixed to the steel mesh 31 inside the precast composite slab 3, thus improving the connection integrity between the two adjacent connecting bars 332. After the subsequent slope protection 1 skeleton node is poured and formed, the precast composite slab 3 and the cast-in-place concrete structure of the slope protection 1 skeleton structure can be connected through the embedded parts 33, thereby improving the connection integrity between the two.
[0043] The implementation principle of this application embodiment is as follows: when pouring the skeleton nodes of the slope protection 1, the following steps are included:
[0044] S1: The slope soil is leveled and the surface of the soil is cleaned of gravel and debris;
[0045] S2: Applying release agent: Apply release agent to the pouring side of the two side formwork 2;
[0046] S3: Side formwork 2 in place: The two side formwork 2 are hoisted onto the slope protection 1 and positioned opposite each other;
[0047] S4: Side formwork 2 fixing: Insert the anchor steel bar 22 into the hole of the bottom connecting plate 21 of the side formwork 2 and drive it into the slope surface of the slope protection 1;
[0048] S5: Precast composite slab 3 hoisting and positioning: Hoist the precast composite slab 3 between the two side formworks 2, and align the end of the connecting pipe 32 on the precast composite slab 3 with the through hole on the side formwork 2.
[0049] S6: Connection and limiting of side template 2 and precast composite slab 3: while threading the threaded rod 41 of the tie rod 4 through the corresponding through hole into the two side templates 2, threaded rod 41 is also threaded into the corresponding connecting pipe 32 on the precast composite slab 3; the two limiting nuts 42 are screwed into the two ends of the threaded rod 41 respectively and the two limiting nuts 42 are pressed against the outside of the two side templates 2 respectively.
[0050] S7: Concrete pouring: After sealing both ends of the pouring gap formed by the two side formworks 2, concrete slurry is poured into the pouring gap through the grouting port 30 at the inclined upper end of the precast composite slab 3.
[0051] S8: Concrete vibration operation: Insert the vibrator into the pouring gap through the grouting port 30 on the precast composite slab 3, and use the vibrator to vibrate the concrete slurry to remove air bubbles inside the concrete slurry.
[0052] S9: Removal of side formwork 2: Pull out the anchor steel bars 22 inserted into the slope surface of slope protection 1; unscrew the limiting nuts 42 at both ends of the threaded rod 41 of the tie rod 4 and remove the threaded rod 41; remove the two side formwork 2 from both sides of the slope protection 1 frame structure.
[0053] This application uses two side formworks 2 in conjunction with precast composite slabs 3 to form a casting cavity. By injecting concrete grout into the casting cavity, the skeleton node of the slope protection 1 can be cast and formed in one go. At the same time, after the skeleton node of the slope protection 1 is cast, the precast composite slab 3 can be used as part of the skeleton structure of the slope protection 1. It does not require demolition construction and is conducive to improving the overall strength of the skeleton structure of the slope protection 1.
[0054] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A revetment skeleton formwork structure, characterised in that: The structure includes two side formworks (2) vertically supported on the slope surface of the slope protection (1). The two side formworks (2) are connected by several tie rods (4). The two side formworks (2) are spliced together to form a pouring gap. A precast composite plate (3) is supported above the pouring gap. The precast composite plate (3) is set to block the top opening of the pouring gap and is set parallel to the slope surface of the slope protection (1). A grouting port (30) is opened at the inclined upper end of the precast composite plate (3). The grouting port (30) is connected to the pouring gap.
2. A revetment skeleton pouring structure according to claim 1, characterized in that: The prefabricated composite plate (3) is located between the two side templates (2). The prefabricated composite plate (3) has several connecting pipes (32) pre-embedded in the threaded rods (41) of several tie rods (4). The threaded rods (41) of the tie rods (4) are all inserted through the corresponding connecting pipes (32).
3. The revetment skeleton pouring structure according to claim 1, characterized in that: The two side templates (2) have a connecting plate (21) protruding from the bottom of the outer side. The connecting plate (21) is provided with an anchoring steel bar (22), and the bottom end of the anchoring steel bar (22) is inserted into the slope surface of the slope protection (1).
4. The revetment skeleton pouring structure according to claim 2, characterized in that: The precast composite slab (3) has several embedded parts (33) at its bottom. The embedded parts (33) include several reinforcing bars (331) which protrude from the bottom of the precast composite slab (3).
5. A revetment skeleton pouring structure according to claim 4, characterized in that: The top ends of adjacent reinforcing bars (331) are connected by connecting bars (332), which are located within the precast composite slab (3).
6. A revetment skeleton pouring structure according to claim 2, characterized in that: The precast composite slab (3) has a steel mesh (31) embedded inside.
7. A revetment skeleton pouring structure according to claim 6, characterized in that: The connecting pipes (32) are all tied and fixed to the steel mesh (31).
8. A revetment skeleton pouring structure according to claim 7, characterized in that: Both ends of the connecting pipe (32) are coaxially connected to water-stop wing rings (321).