Tunnel pilot tunnel construction platform

Abstract

The utility model relates to the field of tunnel construction, in particular to a tunnel pilot tunnel construction platform which comprises a platform plate arranged at an upper pilot tunnel opening of a tunnel. The supporting frame is used for supporting the platform plate, and one end of the supporting frame is fixed to the tunnel temporary inverted arch cross brace; the slag discharging slope is arranged on one side of the platform plate and used for discharging soil slag generated during pilot tunnel construction on the tunnel; the stair is arranged on one side of the platform plate; and the guardrail is arranged on the periphery of the platform plate. One end of the supporting frame is fixed to the tunnel temporary inverted arch cross brace, so that the supporting frame is more stable, and the structural stability of the construction platform is further improved. In addition, the slag discharging slope is arranged on one side of the platform plate and can be directly used for discharging the soil slag of the pilot tunnel construction on the tunnel, so that the slag of the pilot tunnel construction on the tunnel is convenient to discharge. The structure is stable, upper pilot tunnel construction and muck unloading are facilitated, and the safety and the operation efficiency of tunnel construction can be improved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction, and in particular to a tunnel pilot tunnel construction platform. Background Technology

[0002] In tunnel construction, especially during the excavation of the upper pilot tunnel, limited working space leads to low efficiency in the transportation and unloading of excavated soil, affecting construction progress. Traditional methods typically employ temporary supports or simple platforms for excavated soil transfer, but these suffer from insufficient stability and narrow working faces, resulting in low unloading efficiency and potential safety hazards. Furthermore, the lack of a well-designed construction platform increases the difficulty of machinery scheduling, further restricting construction efficiency. Therefore, there is an urgent need for a specialized construction platform with a stable structure that facilitates excavated soil unloading and upper pilot tunnel construction to improve the safety and operational efficiency of tunnel construction. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a tunnel pilot tunnel construction platform with a stable structure, which facilitates the unloading of excavated soil and the construction of the pilot tunnel, thereby improving the safety and work efficiency of tunnel construction.

[0004] A tunnel pilot tunnel construction platform, comprising:

[0005] The platform slab is installed at the entrance of the upper pilot tunnel.

[0006] A support frame is used to support the platform plate, and one end of the support frame is fixed to the tunnel temporary invert arch cross brace.

[0007] A slag unloading ramp is set on one side of the platform slab and is used to unload soil and debris from the construction of the upper tunnel.

[0008] A staircase is located on one side of the platform slab;

[0009] Guardrails are installed on the outer periphery of the platform plate.

[0010] Preferably, the slag unloading ramp is a steel ramp.

[0011] Preferably, the angle between the slag unloading ramp and the horizontal plane is 40 degrees to 80 degrees.

[0012] Preferably, the support frame is welded to the tunnel temporary invert arch cross brace.

[0013] Preferably, the platform plate is further provided with a limiting structure, which is used to limit the driving position of the vehicle.

[0014] Preferably, the limiting structure is an I-beam or a channel steel.

[0015] Preferably, the limiting structure is welded to the platform plate.

[0016] Preferably, the platform plate includes a widened area for placing a shotcrete machine.

[0017] Preferably, the support frame includes columns, crossbeams, and longitudinal beams, and the support frame is formed by welding.

[0018] Preferably, the lower end of the column is provided with a rib.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention provides a tunnel pilot tunnel construction platform. A support frame provides stable support for the platform slab, and one end of the support frame is fixed to the temporary invert arch cross brace of the tunnel, further enhancing the stability of the support frame and improving the structural stability of the construction platform. The platform slab can be directly used for placing and transporting construction equipment and vehicles for the tunnel pilot tunnel, facilitating the construction of the tunnel pilot tunnel. This invention also includes a slag unloading ramp on one side of the platform slab, which can be used directly to unload soil and debris from the tunnel pilot tunnel construction, thus facilitating the removal of construction waste. The tunnel pilot tunnel construction platform provided by this invention has a stable structure, facilitates tunnel pilot tunnel construction and waste unloading, and can improve the safety and work efficiency of tunnel construction. Attached Figure Description

[0021] Figure 1 This is a front view of the tunnel pilot tunnel construction platform diagram described in this utility model.

[0022] Figure 2 This is a side view of the tunnel pilot tunnel construction platform of this utility model.

[0023] Figure 3 This is a top view of the tunnel pilot tunnel construction platform of this utility model.

[0024] Figure 4 for Figure 1 A magnified view of part A in the middle.

[0025] Marked in the image:

[0026] 1-Platform plate, 11-Wideened area, 2-Support frame, 21-Column, 22-Horizontal beam, 23-Longitudinal beam, 24-Rib plate, 3-Unloading ramp, 4-Staircase, 5-Guardrail, 6-Tunnel temporary invert arch cross brace, 7-Limiting structure, 8-Diagonal brace, 9-Upper tunnel guide tunnel, 10-Lower tunnel guide tunnel. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0028] Unless otherwise specified, the terms "upper," "lower," "left," "right," "center," "inner," and "outer" used in the description of specific embodiments of this utility model to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is usually placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, and for enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," "parallel," and "coaxial" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, parallel, or coaxial. Slight tilt or deviation is permissible, as long as it does not affect the normal function of the relevant component. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," not that the structure must be perfectly horizontal; a slight tilt is acceptable. "Coaxial" means that two components are arranged as coaxially as possible, allowing them to move coaxially or approximately coaxially when their relative positions change. Alternatively, it can be simplified to mean that the corresponding device / component / element, when arranged in "horizontal," "vertical," "suspended," "parallel," or "coaxial" directions, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. For example, the deviation in the "coaxial" direction is controlled within 0.2-1mm, preferably within 0.2-0.5mm. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0030] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0031] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0032] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "provided with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0033] Example 1

[0034] like Figure 1 , Figure 2 , Figure 3 As shown, a tunnel pilot tunnel construction platform includes a platform slab 1, a support frame 2, a slag unloading ramp 3, a staircase 4, and a guardrail 5.

[0035] The platform plate 1 is set at the entrance of the upper guide tunnel 9. The upper platform plate 1 provides a large working space for the construction of the upper guide tunnel 9, and can be used for the placement and transportation of construction equipment and vehicles for the upper guide tunnel 9, thereby facilitating the construction of the upper guide tunnel 9.

[0036] In a preferred embodiment, the platform plate 1 is further provided with a limiting structure 7, which is used to restrict the driving position of the vehicle. In a further preferred embodiment, the limiting structure 7 can be an I-beam or a channel steel. The limiting structure 7 is welded to the platform plate 1. Since the platform plate 1 is used for the movement of construction vehicles, the limiting structure 7 on the platform plate 1 can effectively limit the driving position of the vehicle, thereby improving the safety of vehicle movement and construction safety.

[0037] In a preferred embodiment, the platform slab 1 includes a widened area 11 for placing a shotcrete machine. Since the shotcrete machine's working position is relatively fixed, it can be placed in a fixed location, i.e., the widened area 11, without needing to widen the entire platform slab 11, thus saving on construction platform costs.

[0038] The support frame 2 is used to support the platform plate 1. Typically, the support frame 2 includes columns 21, crossbeams 22, and longitudinal beams 23, and can be formed by welding. In a preferred embodiment, diagonal braces 8 can also be welded between the columns 21 and the crossbeams 22, and diagonal braces 8 can also be welded between adjacent columns 21, thereby improving the support stability of the support frame 2. Figure 4As shown, in a preferred embodiment, the lower end of the column 21 may be provided with a number of ribs 24, which is beneficial to the support stability of the column 21. The ribs 24 can be welded to the column 21, and the number of ribs 24 can be evenly distributed on the outer periphery of the column 21.

[0039] One end of the support frame 2 is fixed to the temporary invert arch cross brace 6 of the tunnel. Preferably, the support frame 2 and the temporary invert arch cross brace 6 of the tunnel are welded together. This utility model utilizes the temporary invert arch cross brace 6 that has already been constructed in the tunnel, and directly fixes one end of the support frame 2 to the temporary invert arch cross brace 6 of the tunnel, thereby making the support frame 2 more stable and further improving the structural stability of the construction platform.

[0040] A slag unloading ramp 3 is installed on one side of the platform slab 1 to unload the excavated soil from the construction of the upper tunnel 9. In a preferred embodiment, the slag unloading ramp 3 is a steel ramp. This invention directly installs the slag unloading ramp 3 on one side of the platform slab 1, allowing the excavated soil from the construction of the upper tunnel 9 to be directly transported and unloaded via the slag unloading ramp 3. The slag unloading ramp 3 has a certain slope; preferably, the angle between the slag unloading ramp 3 and the horizontal plane is 40-80 degrees, thus facilitating the dumping of excavated soil. By installing the slag unloading ramp 3, in conjunction with the excavated soil transport vehicles of the lower tunnel 10, the transportation efficiency of the excavated soil generated in the upper tunnel 9 can be greatly improved.

[0041] In a preferred embodiment, the slag discharge ramp 3 can also be connected to the column 21 of the support frame 2 by the diagonal brace 8, so that the slag discharge ramp 3 can be supported by the support frame 2, thereby improving the structural stability of the slag discharge ramp 3.

[0042] Staircase 4 is located on one side of the platform slab 1 and is used for construction workers to walk on, and can also be used for the transport of some construction equipment.

[0043] Guardrail 5 is installed on the outer perimeter of the platform plate 1. It is usually made of steel and serves as a safety protection feature.

[0044] This invention provides a tunnel pilot tunnel construction platform. A support frame 2 provides stable support for the platform slab 1, and one end of the support frame 2 is fixed to the temporary tunnel arch cross brace 6, making the support frame 2 more stable and further improving the structural stability of the construction platform. The platform slab 1 of this invention can be directly used for the placement and transportation of construction equipment and vehicles in the tunnel pilot tunnel 9, facilitating the construction of the tunnel pilot tunnel 9. This invention also includes a slag unloading ramp 3 on one side of the platform slab 1, which can be directly used to unload soil and debris from the construction of the tunnel pilot tunnel 9, thus facilitating the removal of construction waste from the tunnel pilot tunnel 9. The tunnel pilot tunnel construction platform provided by this invention has a stable structure, facilitates the construction of the tunnel pilot tunnel 9 and the unloading of construction waste, and can improve the safety and work efficiency of tunnel construction.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tunnel pilot tunnel construction platform, characterized in that, include: Platform plate (1) is installed at the entrance of the upper guide tunnel (9) of the tunnel; A support frame (2) is used to support the platform plate (1), and one end of the support frame (2) is fixed to the tunnel temporary invert arch cross brace (6). The slag unloading ramp (3) is set on one side of the platform plate (1) and is used to unload the soil and slag from the construction of the upper guide tunnel (9) of the tunnel. A staircase (4) is provided on one side of the platform slab (1); Guardrail (5) is provided on the outer periphery of the platform plate (1).

2. The tunnel pilot tunnel construction platform according to claim 1, characterized in that, The slag unloading ramp (3) is a steel ramp.

3. The tunnel pilot tunnel construction platform according to claim 1, characterized in that, The angle between the slag unloading ramp (3) and the horizontal plane is 40-80 degrees.

4. The tunnel pilot tunnel construction platform according to claim 1, characterized in that, The support frame (2) is welded to the tunnel temporary invert arch cross brace (6).

5. The tunnel pilot tunnel construction platform according to claim 1, characterized in that, The platform plate (1) is also provided with a limiting structure (7), which is used to limit the driving position of the vehicle.

6. The tunnel pilot tunnel construction platform according to claim 5, characterized in that, The limiting structure (7) is an I-beam or a channel steel.

7. The tunnel pilot tunnel construction platform according to claim 5, characterized in that, The limiting structure (7) is welded to the platform plate (1).

8. The tunnel pilot tunnel construction platform according to claim 1, characterized in that, The platform plate (1) includes a widened area (11) for placing a shotcrete machine.

9. The tunnel pilot tunnel construction platform according to any one of claims 1-8, characterized in that, The support frame (2) includes columns (21), crossbeams (22) and longitudinal beams (23), and the support frame (2) is formed by welding.

10. The tunnel pilot tunnel construction platform according to claim 9, characterized in that, The lower end of the column (21) is provided with a rib plate (24).

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