Supporting platform device for construction in tunnel

Abstract

The invention relates to a supporting platform device for construction in a tunnel, a plurality of rectangular steel pipes are spliced and built into a supporting frame through prefabricated connecting pieces, a grid type walkway plate is laid on the supporting frame, and a detachable protective barrier is installed on the edge of the grid type walkway plate; the detachable protective handrails of the grid type walkway plate are connected with the supporting frame through buckles; adjustable supporting legs are arranged at the bottom of the supporting frame. According to the supporting platform device for construction in the tunnel, through organic combination and innovative design of the rectangular steel pipes, the connecting pieces and the grid type walkway plates, high strength and high stability of the device are guaranteed, and meanwhile the functions of rapid building, flexible adjustment, safety and reliability are achieved; the device has the remarkable advantages of being simple in structure, convenient and fast to install, low in cost, high in applicability and the like, can be widely applied to the construction process of various tunnel projects, provides powerful guarantee for efficient and safe tunnel construction, and has wide market application prospects and remarkable social and economic benefits.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction equipment, and particularly relates to a support platform device for construction inside a tunnel. Background Art

[0002] During the construction process of tunnel engineering, the support platform is an indispensable construction equipment, which is mainly used to provide a working space for construction workers and carry the equipment and materials required for construction. However, there are generally many problems with the existing tunnel construction support platforms. On the one hand, some platforms have complex structures and cumbersome erection processes, which require a large amount of labor and time costs and seriously affect the construction progress. On the other hand, some platforms have poor stability and are prone to deformation or even collapse when carrying heavy objects or encountering complex geological environments and vibrations inside the tunnel, posing a serious threat to the lives and safety of construction workers. In addition, the safety protection performance of some support platforms is insufficient, lacking effective anti-slip, drainage and other designs, further increasing the safety hazards during the construction process.

[0003] In the prior art, for example, a walkway slab support system for subway tunnels disclosed in the patent document CN206338074U relies on pre-embedded bolts in tunnel segments and cannot be used in unlined tunnels; the walkway slab is a solid steel plate, with serious water accumulation and dust accumulation; the angle of the support is fixed and cannot adapt to the change of the tunnel cross-section; the installation requires 2 people to cooperate, with low efficiency.

[0004] Therefore, there is an urgent need to design a new support platform device for construction inside a tunnel to solve the problems existing in the above prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a support platform device for construction inside a tunnel, so as to provide a stable, safe and easy-to-operate working platform for construction workers and equipment inside the tunnel.

[0006] To achieve the above purpose, the technical solution of the present invention is: a support platform device for construction inside a tunnel, including a detachable safety railing, customized rectangular steel pipes, a grid-type walkway slab. Multiple rectangular steel pipes are spliced and built into a support frame through prefabricated connectors. The grid-type walkway slab is laid on the support frame, and a detachable safety railing is installed at the edge of the grid-type walkway slab, and the detachable safety railing of the grid-type walkway slab is connected to the support frame through a buckle; adjustable support feet are provided at the bottom of the support frame.

[0007] Furthermore, the detachable guardrail is connected to the grid walkway plate and the customized rectangular steel pipe through the reserved connecting holes; the detachable guardrail is positioned and installed on the customized rectangular steel pipe through the reserved connecting holes, and the customized rectangular steel pipe is positioned and installed on the grid walkway plate through the reserved connecting holes to form a single-layer support platform, and the vertical support customized rectangular steel pipe and the upper horizontal support customized rectangular steel pipe are positioned and installed upward through prefabricated connecting parts, and the upper support platform is continued to be built through the reserved connecting holes and the detachable guardrail and the grid walkway plate, and the vertical support customized rectangular steel pipe is positioned and installed downward through the prefabricated connecting parts as a support column, and then a complete support platform device for construction in the tunnel is formed by installing a detachable straight ladder.

[0008] Furthermore, the height of the detachable guardrail is 1200mm, and the welded protective mesh and rectangular tube columns are both composed of 40mm×40mm square tubes welded together. The size of a single piece is selected according to on-site requirements. The ears at both ends of the protective mesh are connected and fixed to the rectangular tube columns with Φ10 bolts, and the distance between the ears and the upper and lower edges of the rectangular tube columns is 15cm.

[0009] Furthermore, the outer wall of the customized rectangular steel pipe cutout is 100 mm long, 60 mm wide, and 5 mm thick. It is made of Q235 carbon structural steel and has reserved connection holes. The standard lengths are 3000 mm and 1100 mm, which are adjusted according to the specific requirements of tunnel construction.

[0010] Furthermore, the prefabricated connecting piece is provided with a quick locking structure with an adjustment hole, including a height adjustment hole and a horizontal calibration bolt.

[0011] Furthermore, the prefabricated connecting part is provided with a connecting hole, which is aligned with the reserved connecting hole on the customized rectangular steel pipe and then fits with the customized rectangular steel pipe, and is docked with the reserved connecting hole of another customized rectangular steel pipe through buckles and bolts to construct a connection structure in which the two customized rectangular steel pipes are perpendicular to each other, which facilitates the construction of the upper or lower platform and the construction of support columns.

[0012] Furthermore, the detachable straight ladder is composed of 20mm×20mm square tubes welded together and spliced to customized rectangular steel tubes through buckles and reserved connection holes, making it convenient for construction workers to go up and down the support platform.

[0013] Furthermore, the inner diameter of the reserved connection hole is 20 mm, and the interval between the connection holes is fixed at 200 mm.

[0014] Furthermore, the grid-type walkway plate adopts a grid structure, which enhances the anti-slip performance of the walkway plate by increasing the surface friction, ensuring the safety of construction workers when walking and working on the platform. At the same time, it can effectively prevent water and moisture accumulation in the tunnel, ensure the dryness and safety of the construction environment, and facilitate the discharge of dust and debris generated during the construction process.

[0015] Furthermore, the adjustable support feet include support columns and adjustment holes. By using the adjustment holes at different positions, the height and levelness of the support platform can be adjusted to ensure the stability of the support platform under different tunnel bottom conditions.

[0016] The beneficial effects of the present invention are as follows:

[0017] The support platform device for tunnel construction of the present invention, through the organic combination and innovative design of rectangular steel pipes, connectors, and grid - type walkway plates, while ensuring high strength and high stability of the device, realizes the functions of rapid erection, flexible adjustment, and safety and reliability. It has the remarkable advantages of simple structure, convenient installation, low cost, and strong applicability. It can be widely applied to the construction process of various tunnel projects, providing a strong guarantee for the efficient and safe progress of tunnel construction, and having broad market application prospects and significant social and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the structural diagram of the detachable straight ladder in the support platform device for tunnel construction of the present invention;

[0019] Figure 2 is the structural diagram of the horizontal rectangular steel pipe in the support platform device for tunnel construction of the present invention;

[0020] Figure 3 is the structural diagram of the vertical rectangular steel pipe in the support platform device for tunnel construction of the present invention;

[0021] Figure 4 is the structural diagram of the prefabricated connector in the support platform device for tunnel construction of the present invention;

[0022] Figure 5 is the front view of the overall structure of the support platform device for tunnel construction of the present invention;

[0023] Figure 6 is Figure 5 the top view of;

[0024] Figure 7 is Figure 5 the left view of;

[0025] In the figure: 1, protective railing; 2, rectangular steel pipe; 3, prefabricated connector; 4, detachable straight ladder; 5, grid - type walkway plate; 6, pre - determined positioning hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The present invention will be further described below in conjunction with the drawings and embodiments.

[0027] As Figures 1 to 7As shown, the support platform device for in-tunnel construction of the present invention provides a stable, safe and easy-to-operate working platform for construction personnel and equipment in the tunnel.

[0028] The support platform device is mainly composed of custom rectangular steel pipes 2, prefabricated connectors 3 and grid-type walkway plates 5. Among them, the custom rectangular steel pipes 2 serve as the main frame structure of the support platform device and are made of high-strength and wear-resistant high-quality steel. By precisely designing the dimensions of the rectangular steel pipes and optimizing their shapes, they have strong load-bearing capacity and anti-deformation ability, and can stably bear the weight of personnel, equipment and construction materials during tunnel construction.

[0029] The custom rectangular steel pipes 2 are connected by prefabricated connectors 3. The prefabricated connectors 3 are specially designed and have the characteristics of high strength and high stability. They adopt a quick-connection structure, which can achieve quick, precise and firm assembly between the rectangular steel pipes, thus forming a stable support frame system. At the same time, an adjustment structure is provided on the prefabricated connector 3. The adjustment structure includes a plurality of adjustable connection holes and adjustment bolts. By adjusting the positions of the adjustment bolts in different connection holes, the dimensions and shapes of the support frame can be flexibly adjusted according to different construction scenarios and actual requirements in the tunnel, greatly improving the versatility and adaptability of the device.

[0030] The grid-type walkway plates 5 are laid on the rectangular steel pipe frame and are made of high-strength metal materials. Its unique grid-like structure design has multiple advantages. It can not only effectively reduce the weight of the walkway plate itself, making it easy to install and carry, but also enhance the anti-slip performance of the walkway plate by increasing the surface friction, ensuring the safety of construction personnel when walking and working on the platform. In addition, the grid design of the grid-type walkway plate 5 also has good drainage and ventilation performance, which can effectively prevent water accumulation and moisture accumulation in the tunnel, ensure the dryness and safety of the construction environment, and is also conducive to the discharge of dust and debris generated during the construction process, keeping the platform clean.

[0031] In order to enhance the overall stability of the support platform device, adjustable support feet are also provided at the bottom of the rectangular steel pipe frame. The adjustable support feet include support columns and adjustment holes. Through the adjustment holes at different positions, the height and levelness of the support platform can be adjusted according to the actual situation of the tunnel bottom surface, ensuring that the support platform can remain stable under different tunnel bottom surface conditions.

[0032] Meanwhile, removable guardrails 1 are installed at the edges of the gridded walkway panels 5. These removable guardrails 1 are connected to the gridded walkway panels 5 and the custom rectangular steel tubes 2 via snap fasteners. During construction, these guardrails effectively prevent accidental falls and ensure the safety of construction workers. When no longer needed, they can be quickly disassembled, facilitating the transportation of large equipment and materials.

[0033] Example:

[0034] A support platform device for tunnel construction includes a detachable guardrail 1, which is connected to a grid-type walkway plate 5 and a customized rectangular steel pipe 2 through a reserved connection hole 6. The detachable guardrail 1 is positioned and installed on the customized rectangular steel pipe 2 through the reserved connection hole 6. The customized rectangular steel pipe 2 is positioned and installed on the grid-type walkway plate 5 through the reserved connection hole 6 to form a single-layer support platform. The vertical support customized rectangular steel pipe 2 and the upper horizontal support customized rectangular steel pipe 2 are positioned and installed upward through the prefabricated connecting piece 3, and the upper support platform is continued to be built through the reserved connection hole 6 and the detachable guardrail 1 and the grid-type walkway plate 5, and the vertical support customized rectangular steel pipe 2 is positioned and installed downward through the prefabricated connecting piece 3 as a support column, and then a detachable straight ladder 4 is installed to form a complete support platform device for tunnel construction.

[0035] Preferably, the height of the detachable guardrail 1 is 1200mm, and the welded protective mesh and the rectangular tube column are both composed of 40mm×40mm square tubes welded together. The size of a single piece is selected according to on-site requirements. The ears at both ends of the protective mesh are connected and fixed to the column with Φ10 bolts, and the distance between the ears and the upper and lower edges of the rectangular tube column is 15cm.

[0036] Preferably, the outer wall of the cutout of the customized rectangular steel pipe 2 is 100 mm long, 60 mm wide, and 5 mm thick. It is made of Q235 carbon structural steel and has a reserved connection hole 6. The standard lengths are 3000 mm and 1100 mm, which can be adjusted according to the requirements of tunnel construction.

[0037] Preferably, the prefabricated connecting part 3 has a connecting hole on it, which can be completely fitted with the customized rectangular steel tube 2 after being aligned with the reserved connecting hole 6 on the customized rectangular steel tube 2, and can be docked with the reserved connecting hole 6 of another customized rectangular steel tube 2 through buckles and bolts to construct a connection structure in which the two customized rectangular steel tubes 2 are perpendicular to each other, which is convenient for the construction of the upper or lower platform and the construction of support columns.

[0038] Preferably, the detachable straight ladder 4 is formed by welding 20mm×20mm square tubes, and can be spliced to the customized rectangular steel tube 2 through buckles and reserved connection holes 6, making it convenient for construction workers to go up and down the support platform.

[0039] Preferably, the grid - type walkway plate 5 adopts a grid - like structure, which can enhance the anti - slip performance of the walkway plate by increasing the surface friction, ensuring the safety of construction workers when walking and operating on the platform. At the same time, it has good drainage and ventilation performance, can effectively prevent water accumulation and moisture accumulation in the tunnel, guarantee the dryness and safety of the construction environment, and is also conducive to the discharge of dust and debris generated during the construction process.

[0040] Preferably, the inner diameter of the reserved connection hole 6 is 20 mm, and the interval between the connection holes 6 is fixed at 200 mm.

[0041] The construction process of the support platform device for tunnel construction of the present invention is as follows:

[0042] I. Device erection: First, according to the specific requirements of tunnel construction, by adjusting the adjustment structure on the connecting piece, determine the splicing size and shape of the rectangular steel pipes, and quickly connect the rectangular steel pipes through the connecting piece to erect the support frame. Then, lay the grid - type walkway plate on the rectangular steel pipe frame to ensure that the walkway plate is closely attached to the rectangular steel pipe frame. Finally, install the guardrail at the edge of the grid - type walkway plate, and according to the situation of the tunnel bottom surface, adjust the height and levelness of the adjustable support feet to stably place the support platform device at the designated position in the tunnel.

[0043] II. Usage process: During the tunnel construction process, construction workers and equipment can operate on the grid - type walkway plate. Due to the anti - slip, drainage and ventilation performance of the grid - type walkway plate, it can provide a safe and comfortable working environment for construction workers. When it is necessary to adjust the size or shape of the support platform to meet the requirements of different construction stages, the support frame can be quickly adjusted by adjusting the adjustment structure on the connecting piece.

[0044] III. Device disassembly: After the construction is completed, first disassemble the guardrail, and then disassemble the grid - type walkway plate and the rectangular steel pipe frame in sequence, and store each component separately for convenient use next time.

Claims

1. A support platform device for construction inside a tunnel, characterized in that: It includes detachable guardrails, customized rectangular steel pipes, and grid walkway boards. Multiple rectangular steel pipes are spliced together through prefabricated connectors to form a support frame. Grid walkway boards are laid on the support frame. Removable guardrails are installed on the edges of the grid walkway boards, and the detachable guardrails of the grid walkway boards are connected to the support frame through buckles; adjustable support feet are provided at the bottom of the support frame.

2. The support platform device for construction inside a tunnel according to claim 1, wherein: The detachable guardrail is connected to the grid walkway plate and the customized rectangular steel pipe through the reserved connection hole; the detachable guardrail is positioned and installed on the customized rectangular steel pipe through the reserved connection hole, and the customized rectangular steel pipe is positioned and installed on the grid walkway plate through the reserved connection hole to form a single-layer support platform, and the vertical support customized rectangular steel pipe and the upper horizontal support customized rectangular steel pipe are positioned and installed upward through the prefabricated connecting parts, and the upper support platform is continued to be built through the reserved connection holes and the detachable guardrail and the grid walkway plate, and the vertical support customized rectangular steel pipe is positioned and installed downward through the prefabricated connecting parts as a support column, and then a complete support platform device for construction in the tunnel is formed by installing a detachable straight ladder.

3. The support platform device for construction in a tunnel according to claim 1, characterized in that: The height of the detachable guardrail is 1200mm. The welded protective mesh and rectangular tube columns are both made of 40mm×40mm square tubes welded together. The size of a single piece is selected according to on-site requirements. The ears at both ends of the protective mesh are connected and fixed to the rectangular tube columns with Φ10 bolts. The distance between the ears and the upper and lower edges of the rectangular tube columns is 15cm.

4. The support platform device for in-tunnel construction according to claim 1, wherein: The outer wall of the customized rectangular steel pipe cutout is 100mm long, 60mm wide, and 5mm thick. It is made of Q235 carbon structural steel and has reserved connection holes. The standard lengths are 3000mm and 1100mm, which are adjusted according to the specific requirements of tunnel construction.

5. The support platform device for in-tunnel construction according to claim 1, characterized in that: The prefabricated connecting piece is provided with a quick locking structure with an adjustment hole; and contains a height adjustment hole and a horizontal calibration bolt.

6. The support platform device for in-tunnel construction according to claim 1, characterized in that: The prefabricated connecting part is provided with a connecting hole, which is aligned with the reserved connecting hole on the customized rectangular steel pipe and then fits into the customized rectangular steel pipe, and is docked with the reserved connecting hole of another customized rectangular steel pipe through buckles and bolts to construct a connection structure in which the two customized rectangular steel pipes are perpendicular to each other, which is convenient for building the upper or lower platform and the support column.

7. The support platform device for construction in a tunnel according to claim 1, wherein: The detachable straight ladder is made of 20mm×20mm square tubes welded together and spliced to customized rectangular steel tubes through buckles and reserved connection holes, making it convenient for construction workers to go up and down the support platform.

8. The support platform device for construction in a tunnel according to claim 7, characterized in that: The inner diameter of the reserved connection hole is 20 mm, and the interval between the connection holes is fixed at 200 mm.

9. The support platform device for construction in a tunnel according to claim 1, characterized in that: The grid-type walkway plate adopts a grid structure, which enhances the anti-slip performance of the walkway plate by increasing surface friction, ensuring the safety of construction workers when walking and working on the platform. At the same time, it can effectively prevent water and moisture accumulation in the tunnel, ensure the dryness and safety of the construction environment, and facilitate the discharge of dust and debris generated during the construction process.

10. The support platform device for construction in a tunnel according to claim 1, characterized in that: The adjustable support legs include support columns and adjustment holes. The height and levelness of the support platform can be adjusted through the adjustment holes at different positions to ensure that the support platform remains stable under different tunnel bottom conditions.

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