Simple assembly type shield connection channel secondary grouting platform

Abstract

The utility model belongs to the field of construction equipment, and particularly relates to a simple assembly type shield connection channel secondary grouting platform which comprises a grouting platform body and a plurality of vertical rods vertically connected with the grouting platform body and pipe pieces. The grouting platform comprises a platform plate and a transverse rod arranged below the platform plate. The two ends of the transverse rod are connected with the vertical rods and the pipe pieces respectively. And the vertical rods and the transverse rods are independently I-shaped steel parts. The main structure of the simple assembly type shield connection channel secondary grouting platform (platform for short) is formed by splicing I-shaped steel structures, components are connected through high-strength bolts, and the overall required size length is controlled by changing the splicing number of single components. The components are integrally connected to the duct piece of the tunnel, the grouting task can be completed, a platform can be temporarily formed, and tools and materials can be conveniently stored.

Description

Technical Field

[0001] This utility model belongs to the field of construction equipment, specifically relating to a simple prefabricated secondary grouting platform for shield tunnel connecting passages. Background Technology

[0002] During shield tunnel excavation, synchronous grouting is required to prevent segment displacement and misalignment that could affect the assembly quality. However, synchronous grouting inevitably introduces unavoidable quality defects such as cavities, causing concentrated loads on the segments and increasing tunnel safety risks. To ensure the overall structural integrity of the segments and compensate for uneven filling and incomplete compaction caused by solidification shrinkage and diffusion within the strata during synchronous grouting, secondary grouting is necessary to fill the cavities within the segments. If a suitable secondary grouting platform is not available on-site, and the space within the shield tunnel is limited, secondary grouting must be carried out in the tunnel's safety passageway. During secondary grouting, the movement of other equipment and personnel inside the tunnel is often significantly disrupted, hindering safe management of operations and easily causing pollution to the passageway and surrounding equipment, thus damaging the clean and civilized construction image of the tunnel. Furthermore, since the equipment is located at the tunnel floor, it is inconvenient to move it during secondary grouting equipment relocation. Additionally, because the grouting inlets are generally high, the lack of a secondary grouting platform makes preparation work extensive and operations very inconvenient. This grouting method severely restricts the progress of shield tunneling, consumes a large amount of manpower and resources, and is prone to safety accidents. Utility Model Content

[0003] The purpose of this utility model is to overcome the defects in the existing technology and provide a simple prefabricated secondary grouting platform for shield tunnel connecting passages.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A simplified prefabricated secondary grouting platform for a shield tunnel connecting passage includes a grouting platform and multiple vertical rods that connect the grouting platform to the tunnel segments. The grouting platform includes a platform and horizontal rods located below the platform. The two ends of the horizontal rods are connected to the vertical rods and the tunnel segments, respectively. The vertical rods and the horizontal rods are independently H-beam components.

[0006] The grouting platform includes an upper grouting platform and a lower grouting platform; the upper grouting platform and the lower grouting platform are connected by vertical rods.

[0007] A connecting ladder is provided between the upper grouting platform and the lower grouting platform.

[0008] The upper grouting platform is equipped with an adapter; the adapter is connected to the connecting ladder.

[0009] The upper grouting platform is surrounded by a fence.

[0010] The grouting platform is composed of multiple platform units spliced ​​together; crossbars are provided between the first and last platform units and between adjacent platform units.

[0011] The vertical rod and the horizontal rod, the horizontal rod and the platform, the horizontal rod and the pipe segment, and the vertical rod and the pipe segment are all independently connected by high-strength bolts.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model addresses various problems associated with temporary grouting platforms, such as improper placement and excessive space occupation, while also meeting the requirements of modern construction, including speed, safety, and environmental friendliness. The simplified prefabricated shield tunnel connecting passage secondary grouting platform (hereinafter referred to as the platform) is primarily constructed from I-beams, with components connected by high-strength bolts. The overall length and dimensions are controlled by varying the number of individual components. The entire structure is connected to the tunnel segments, serving both as a grouting platform and a temporary storage area for tools and materials. This device utilizes a fully prefabricated and detachable design, facilitating disassembly and transportation. Furthermore, the industrialized production methods and prefabricated detachable technology allow for easy component replacement, enabling adaptation to different construction conditions in various environments. This reduces construction costs, shortens the construction period, and significantly improves efficiency. The device is directly installed on the bolts of the tunnel segments, preserving the platform's structural strength and the overall strength of the shield tunnel, while minimizing drilling and construction steps.

[0014] I. Improved Efficiency: The simplified prefabricated shield tunnel connecting passage secondary grouting platform adopts an industrialized production model, which can carry out standardized production processes, thus industrializing the steel structure assembly process, improving construction quality and work efficiency, and reducing construction costs.

[0015] II. Expandability: All components of the simplified prefabricated shield tunnel secondary grouting platform are connected by high-strength bolts. After assembly, additional components can be added at the connection points of the support components, or some components can be disassembled and transferred or replaced with new components. Customized components can also be used to complete specific functions as needed, and the platform can continue to serve as a storage facility after the grouting task is completed.

[0016] Third, resource conservation: The design, manufacturing and recycling model of the simplified prefabricated shield tunnel secondary grouting platform can reduce the generation of waste. The main material of the simplified prefabricated shield tunnel secondary grouting platform is steel, which allows the originally unusable parts to be recycled and reused, reducing resource waste, mitigating environmental pollution, and conforming to the environmental protection concept in the modern construction field.

[0017] In conclusion, the benefits of using a simplified prefabricated secondary grouting platform for shield tunnel connecting passages are not only economic and ecological, but also significant from a societal and environmental perspective. This is a key reason why this technology has gained widespread application and promotion. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the simplified prefabricated shield tunnel secondary grouting platform of this utility model;

[0019] Figure 2-3 This is a side view and a front view of the simplified prefabricated shield tunnel connecting passage secondary grouting platform of this utility model;

[0020] Figure 4 This is a partial connection diagram of the simplified prefabricated shield tunnel connecting channel secondary grouting platform of this utility model. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0022] Figure 1-4 This invention illustrates a simple prefabricated secondary grouting platform for a shield tunnel connecting passage, comprising a grouting platform 1 and multiple vertical rods 2 that vertically connect the grouting platform 1 to the tunnel segment 3; the grouting platform includes a platform 11 and a horizontal rod 12 disposed below the platform; the two ends of the horizontal rod 12 are respectively connected to the vertical rods 2 and the tunnel segment 3; the vertical rods 2 and the horizontal rods 12 are independently H-beam components.

[0023] The grouting platform 1 can be composed of multiple platform units spliced ​​together; crossbars 12 are provided between the first and last platform units and between adjacent platform units. The vertical bar 2 and the crossbar 12, the crossbar 12 and the platform 11, the crossbar 12 and the pipe segment 3, and the vertical bar 2 and the pipe segment 3 are all independently connected by high-strength bolts.

[0024] The grouting platform 1 includes an upper grouting platform and a lower grouting platform; the upper grouting platform and the lower grouting platform are connected by vertical rods 2. A connecting ladder 4 is provided between the upper grouting platform and the lower grouting platform.

[0025] The upper grouting platform is equipped with a transition interface 5; the transition interface 5 is connected to the connecting ladder 4. As a preferred embodiment, the connecting ladder can be composed of two vertical H-beams and multiple horizontal H-beams connecting the vertical H-beams, connected by high-strength bolts. The bottom of the vertical H-beams is connected to the pipe segment by high-strength bolts, and the upper part is connected to the platform of the transition interface.

[0026] The upper grouting platform is surrounded by a fence 6.

[0027] During the installation of this device, according to the on-site temporary construction layout plan, the components of the simple prefabricated shield tunnel secondary grouting platform are first transported to the designated location. The lower grouting platform is installed first, and the upper grouting platform can only be installed after the platform of the lower grouting platform is installed. The installation of the connecting ladder is completed first, and the upper platform is installed with the help of the ladder and the lower grouting platform. Finally, the guardrail is installed and the device can be put into use.

[0028] This invention addresses various problems associated with temporary grouting platforms, such as improper placement and excessive space occupation, while also meeting the requirements of modern construction for speed, safety, and environmental friendliness. The platform's main structure is composed of I-beams assembled from various components connected by high-strength bolts. The overall length and dimensions are controlled by varying the number of individual components. The entire platform is connected to the tunnel lining segments, enabling grouting operations and also serving as a temporary platform for storing tools and materials.

[0029] This platform features fully modular and detachable assembly technology, facilitating disassembly and transportation. Utilizing industrialized production methods and modular, detachable assembly technology, components can be replaced at any time. Furthermore, it allows for adaptation to different construction conditions in various site environments by replacing components, thereby saving construction costs, shortening the construction period, and significantly improving construction efficiency. This device is directly installed on the segment bolts, without affecting the platform's structural strength or the overall strength of the shield tunnel, reducing drilling and construction steps.

[0030] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A simplified prefabricated secondary grouting platform for a shield tunnel connecting passage, characterized in that, It includes a grouting platform and multiple vertical rods that connect the grouting platform to the pipe segments; the grouting platform includes a platform and a horizontal bar set below the platform; the two ends of the horizontal bar are respectively connected to the vertical rods and the pipe segments; the vertical rods and the horizontal bars are independently I-beam components; The grouting platform includes an upper grouting platform and a lower grouting platform; the upper grouting platform and the lower grouting platform are connected by vertical rods; The vertical rod and the horizontal rod, the horizontal rod and the platform, the horizontal rod and the tube segment, and the vertical rod and the tube segment are all independently connected by high-strength bolts; A connecting ladder is provided between the upper grouting platform and the lower grouting platform; The upper grouting platform is equipped with an adapter; the adapter is connected to the connecting ladder.

2. The simplified prefabricated shield tunnel secondary grouting platform according to claim 1, characterized in that, The upper grouting platform is surrounded by a fence.

3. The simplified prefabricated shield tunnel connecting passage secondary grouting platform according to claim 1, characterized in that, The grouting platform is composed of multiple platform units; crossbars are provided between the first and last platform units and between adjacent platform units.

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