A guide wall structure for foundation pit support

Abstract

The utility model relates to the technical field of foundation pit support, and disclose a guide wall structure for foundation pit support, including the bar dowel and plastic formwork no. 1, the bar dowel installs the reinforcing steel bar, the bar dowel and reinforcing steel bar are penetrated and have the steel nail, the steel nail is opened and has the screw groove, plastic formwork no. 2 is spliced and installed on plastic formwork no. 1, a plurality of round holes are all opened on plastic formwork no. 1 and plastic formwork no. 2, and splicing assembly is arranged between plastic formwork no. 1 and plastic formwork no. 2. The utility model can solve the leakage of concrete pouring problem, need not subsequent repair processing, effectively guarantee guide wall construction quality and foundation pit safety, and the dismounting process is simple and fast, reduces the construction step and operation time of traditional splicing mode, effectively speeds up the overall construction progress of foundation pit support guide wall, and the formwork can be recycled, reduces the building waste material production, and need not frequent purchase new formwork, reduces the construction cost.

Description

Technical Field

[0001] This utility model relates to the field of foundation pit support technology, specifically a guide wall structure for foundation pit support. Background Technology

[0002] In the field of construction engineering, foundation pit support is a key link in ensuring the safety of underground engineering construction. Especially in projects involving deep foundation pits, such as water plants, municipal pipe corridors, and high-rise buildings, guide walls, as an important component of foundation pit support, mainly play the roles of positioning and guidance, retaining soil protection, and preventing the collapse of the soil around the foundation pit. The construction quality of guide walls directly affects the safety and stability of subsequent foundation pit excavation and main structure construction. They are usually formed by formwork system, steel reinforcement cage and concrete pouring. Among them, the design and installation of formwork system is the core factor that determines the forming effect and construction efficiency of guide walls.

[0003] Currently, most guide walls on the market are composed of multiple spliced ​​templates, which are mostly connected by bolts. Bolt connections require the use of wrenches and other tools to fix them point by point, which is cumbersome and prone to gaps due to loose bolts. This leads to serious grout leakage during concrete pouring, affecting not only the surface flatness and structural strength of the guide wall but also requiring subsequent repairs, increasing construction costs. Furthermore, the disassembly and reuse of templates are difficult. Traditional templates are mostly made of wood or ordinary steel. Wooden templates are easily damaged by concrete adhesion, while steel templates are heavy and require forced separation during disassembly, which can easily cause deformation. Neither type can be reused multiple times, generating a large amount of construction waste and requiring frequent purchases of new templates, further increasing construction costs.

[0004] Therefore, we propose a guide wall structure for foundation pit support to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a guide wall structure for foundation pit support, so as to solve the problems mentioned in the background art that the existing guide wall structure is not easy to splice and not easy to reuse.

[0006] This utility model provides the following technical solution: a guide wall structure for foundation pit support, including rebar and plastic template one, wherein steel bars are installed on the rebar, steel nails are passed through the rebar and steel bars, and screw grooves are opened on the steel nails, and plastic template two is spliced ​​and installed on plastic template one, both plastic template one and plastic template two are provided with multiple round holes, and splicing components are provided between plastic template one and plastic template two.

[0007] Preferably, the steel nail is inserted into the round hole, and a nut is threaded onto the steel nail, the nut being in contact with the surface of the first plastic template or the second plastic template.

[0008] Preferably, the splicing component has slots formed on the first plastic template and the first plastic template, a round rod is inserted into the slot, a pull rod is fixed to the top surface of the round rod, and a protrusion is fixed to the bottom surface of the round rod.

[0009] Preferably, the slot is circular in the middle and extends into a loop shape on both sides.

[0010] Preferably, two protrusions are symmetrically arranged about the round rod, and the protrusions and round rod are adapted to the slot.

[0011] Preferably, the round rod, pull rod, protrusion and slot are arranged in a linear array of multiple components.

[0012] This utility model has the following beneficial effects: 1. This structure can effectively ensure the construction quality of the guide wall and the safety of the foundation pit. In response to the problem of loosening and leakage of grout in traditional bolted connections, the precise matching of round rods, protrusions and slots and the rotation limit of tie rods can fundamentally avoid misalignment and gaps at the formwork splicing points, solve the problem of grout leakage during concrete pouring, and eliminate the need for subsequent repairs. At the same time, as a panel pressure foot and positioning wall, it can ensure that the guide wall surface is flat, the structure is firm and the shape is beautiful, providing a stable and safe working environment for the foundation pit construction of the water plant's main project.

[0013] 2. This structure can improve construction efficiency. Compared with the cumbersome operation of traditional bolt connection, which requires tools such as wrenches to fix point by point, its template splicing does not require additional tools. Stable splicing can be completed in just three steps: aligning the slots, inserting the round rod, and rotating the tie rod. The operation is simple and convenient. The disassembly process is also simple and quick, reducing the construction steps and operation time of traditional splicing methods, and effectively accelerating the overall construction progress of the foundation pit support guide wall.

[0014] 3. This structure can improve the reuse rate of formwork and effectively reduce construction costs. It addresses the problems of traditional wooden formwork being prone to adhesion and damage, and steel formwork being heavy and easily deformed, making it difficult to recycle. By coating the formwork surface with a release agent and using a splicing design, the formwork can be easily disassembled by reversing the operation after the concrete is poured. This not only avoids the formwork from sticking to the concrete, but also prevents the formwork from being damaged or deformed during disassembly, allowing the formwork to be reused multiple times. This reduces the generation of construction waste and eliminates the need to frequently purchase new formwork, thus lowering construction costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0016] Figure 2 This is a schematic diagram of the overall splicing structure of this utility model.

[0017] Figure 3This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0018] Figure 4 This is a schematic diagram of the splicing component structure of this utility model.

[0019] In the diagram: 1. Rebar; 2. Rebar; 3. Steel nail; 4. Threaded groove; 5. Nut; 6. Plastic template one; 7. Plastic template two; 8. Round hole; 9. Splicing component; 91. Round rod; 92. Tie rod; 93. Protrusion; 94. Slot. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: This embodiment aims to address the problems of unstable formwork splicing, severe grout leakage, difficult formwork disassembly, and low reuse rate in traditional foundation pit support guide wall construction. Please refer to... Figure 1 - Figure 4 A guide wall structure for foundation pit support includes rebar 1 and plastic template 6. Rebar 2 is installed on the rebar 1. Steel nails 3 pass through the rebar 1 and the steel nails 3. Screw grooves 4 are opened on the steel nails 1 and 6. Plastic template 2 7 is spliced ​​and installed on the plastic template 6. Multiple round holes 8 are opened on both the plastic template 6 and the plastic template 2 7. A splicing component 9 is provided between the plastic template 6 and the plastic template 2 7.

[0022] The steel nails 3 are inserted into the round holes 8, and the steel nails 3 are threaded with nuts 5, which fit against the surface of plastic template 6 or plastic template 7. Plastic template 6 and plastic template 7 are made of high-strength engineering plastic, which has good resistance to deformation and wear. The round holes 8 are distributed in a matrix, and the spacing matches the spacing of the steel nails 3 to ensure that the template is subjected to uniform stress.

[0023] The splicing component 9 has slots 94 on plastic template 6. A round rod 91 is inserted into the slot 94. A pull rod 92 is fixed to the top surface of the round rod 91, and a protrusion 93 is fixed to the bottom surface of the round rod 91. The slot 94 is circular in the middle and has extended lugs on both sides. Two protrusions 93 are symmetrically arranged about the round rod 91. The protrusions 93, round rods 91 and slots 94 are adapted to each other. The thickness of the protrusions 93 is precisely matched with the width of the extended lugs of the slot 94 to ensure a good fit during splicing. Multiple round rods 91, pull rods 92, protrusions 93 and slots 94 are arranged in a linear array. Through the mechanical interlocking connection of the round rods 91, protrusions 93 and slots 94, and the rotation limit of the pull rod 92, there is no relative displacement at the splicing point of plastic template 6 and plastic template 7. This effectively avoids the problem of grout leakage caused by template misalignment during concrete pouring and ensures the quality of the guide wall formation.

[0024] In this embodiment: First, the reinforcing bar 1 is pre-embedded in the ground. Then, the reinforcing bar 2 is welded to the reinforcing bar 1. Next, the steel nail 3 is inserted through the reinforcing bar 1 and the reinforcing bar 2. Then, the plastic template 6 is inserted into the steel nail 3 through the round hole 8. The nut 5 is threaded on the steel nail 3 so that the nut 5 fits tightly with the surface of the plastic template 6. A release agent is applied to the surfaces of the plastic template 6 and the plastic template 7 to prepare for subsequent disassembly and reuse.

[0025] After the installation of a single template is completed, the splicing operation is carried out according to the construction requirements. The slot 94 of plastic template 2 7 is aligned with the slot 94 of plastic template 1 6. The round rod 91 is inserted into the slot 94. By utilizing the compatibility between the protrusion 93 on the bottom surface of the round rod 91 and the extended ear-like structure on both sides of the slot 94, the initial splicing of plastic template 1 6 and plastic template 2 7 is achieved.

[0026] Then rotate the pull rod 92. Since the pull rod 92 is fixed to the bottom of the round rod 91 and the round rod 91 is fixed to the protrusion 93, when the pull rod 92 rotates, it will drive the round rod 91 and the protrusion 93 to rotate synchronously, so that the protrusion 93 and the extension of the slot 94 are in an interlaced state, thereby forming a limiting fixation between the plastic template 1 6 and the plastic template 2 7, ensuring that the two are stably spliced.

[0027] After assembly, concrete is poured. This guide wall structure can serve as a foothold for panel construction, effectively preventing grout leakage during concrete pouring. At the same time, it serves as a positioning wall for the panels, ensuring the structural stability and aesthetic appearance of the wall construction.

[0028] After the concrete is poured, the plastic formwork can be disassembled by reversing the operation. Because the surface is coated with a release agent, the formwork can be easily separated and kept intact, thus enabling reuse. Ultimately, this provides a reliable guarantee for the safety of the foundation pit of the main water plant project while improving the utilization rate of materials.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A guide wall structure for foundation pit support, comprising rebar (1) and plastic formwork (6), characterized in that: The anchor bar (1) is equipped with a steel bar (2), and steel nails (3) are inserted through the anchor bar (1) and the steel bar (2). The steel nails (3) have screw grooves (4). Plastic template one (6) is spliced ​​and installed with plastic template two (7). Both plastic template one (6) and plastic template two (7) have multiple round holes (8). A splicing component (9) is provided between plastic template one (6) and plastic template two (7).

2. The guide wall structure for foundation pit support according to claim 1, characterized in that: The steel nail (3) is inserted into the round hole (8), and a nut (5) is threaded onto the steel nail (3). The nut (5) is in contact with the surface of the first plastic template (6) or the second plastic template (7).

3. The guide wall structure for foundation pit support according to claim 1, characterized in that: The splicing component (9) has slots (94) on the plastic template (6) and the plastic template (6). A round rod (91) is inserted into the slot (94). A pull rod (92) is fixed on the top surface of the round rod (91). A protrusion (93) is fixed on the bottom surface of the round rod (91).

4. A guide wall structure for foundation pit support according to claim 3, characterized in that: The slot (94) is circular in the middle and has extended ear-like features on both sides.

5. A guide wall structure for foundation pit support according to claim 4, characterized in that: Two protrusions (93) are symmetrically arranged about the round rod (91), and the protrusions (93), the round rod (91) and the slot (94) are adapted to each other.

6. A guide wall structure for foundation pit support according to claim 5, characterized in that: The round rod (91), pull rod (92), protrusion (93) and slot (94) are arranged in a linear array of multiple components.

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