Super-long counter-force supporting structure for shield launching

Abstract

The utility model discloses a shield launching super-long counter-force supporting structure which comprises a counter-force frame, a counter-force frame inclined supporting frame connected with the counter-force frame is arranged on one side of the counter-force frame, a supporting frame composed of a plurality of counter-force frame bottom supporting structures is arranged at the lower end of the counter-force frame, and the counter-force frame, the counter-force frame inclined supporting frame and the supporting frame are all provided with a plurality of reflective stickers. The reaction frame has the beneficial effects that the maximum length of the bottom support of the reaction frame is 33m, a connecting component is arranged between the supports, and each support is provided with a horizontal limiting upright post; a shield trolley weight is mounted at the upper part of the reaction frame support; no counter-force support is arranged at the upper part of the counter-force frame; positioning reflectors are installed on the counter-force supporting structures, deformation displacement is monitored regularly in the shield launching stage, and construction is guided through data; and the structure and the process are relatively simple.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering and railway engineering, in particular to an ultra-long reaction force supporting structure initiated by a shield machine. Background Art

[0002] The shield method is used in the construction of tunnels of all sizes and underground projects. With the rapid development of the economy and the important stage of transportation construction, shield technology has been widely used and further developed. Shield starting technology refers to a series of operations in which the shield on the starting base is pushed into the end reinforced soil in the shield starting working shaft or station, and then enters the original soil section of the stratum, and excavates along the designed route using equipment or facilities such as reaction frames and temporarily assembled negative ring segments.

[0003] Conventional shield machine reaction force support structures for starting mainly include two forms: diagonal support and straight support. These support structures can be divided into column straight support, column diagonal support, lower beam straight support and upper beam close to the middle partition according to the different installation positions. The main function of these support structures is to provide strong reaction force to support the stable advancement of the shield machine at the starting stage. The stability of this structure is the key to ensure that the shield machine does not deform, and it is also the decisive factor for the tunnel axis not to deviate.

[0004] Conventional shield starting reaction support cannot meet the shield starting requirements in confined space. The existing problems are: 1. The support cannot be installed on the upper part of the reaction frame; 2. The reaction frame support does not meet the shield starting thrust requirements in the starting stage; 3. The starting space is limited, which is not convenient for construction. Utility Model Content

[0005] The utility model aims to provide an ultra-long reaction force support structure for shield machine start-up to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extra-long reaction support structure for shield tunneling, comprising a reaction frame, one side of the reaction frame is provided with a reaction frame diagonal brace connected to it, the lower end of the reaction frame is provided with a support frame composed of multiple reaction frame bottom support structures, and the reaction frame, the reaction frame diagonal brace and the support frame are all provided with multiple reflective stickers.

[0007] Further optimized, the support frame length is 33m, while the conventional setting is only 8m.

[0008] Further optimized, the support frame is composed of a plurality of support structures, and each of the support structures is connected by a plurality of structural members.

[0009] For further optimization, the plurality of support structures are provided with horizontal limit columns, and connecting components are installed between the support structures to ensure their stability.

[0010] Further optimized, the reaction frame diagonal brace is composed of multiple reaction frame diagonal brace columns and steel pipes, and the multiple reaction frame diagonal brace columns and steel pipes ensure its stability.

[0011] Further optimized, the multiple reflective stickers are respectively composed of a first reflective sticker, a second reflective sticker, a third reflective body, a fourth reflective sticker, a fifth reflective sticker, a sixth reflective sticker, a seventh reflective sticker, an eighth reflective sticker and a ninth reflective sticker which are arranged around the reaction frame, on one side of the reaction frame diagonal support frame and on the end face of the support frame.

[0012] Beneficial Effects

[0013] The utility model provides an extra-long reaction support structure for the start of a shield machine, and the bottom support of the reaction frame is up to 33m long. Connecting components are installed between the supports, and each support is installed with a horizontal limit column. The shield trolley weight is installed on the upper part of the reaction frame support. The reaction support may not be arranged on the upper part of the reaction frame. The reaction support structure is installed with a positioning reflector, and the deformation and displacement are regularly monitored in the start-up stage of the shield machine, and the data guides the construction. The structure and process are relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION

[0015] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0016] Example

[0017] like Figure 1 As shown, an extra-long reaction support structure for shield tunneling includes a reaction frame 1, one side of the reaction frame 1 is provided with a reaction frame diagonal support frame 4 connected to it, the lower end of the reaction frame 1 is provided with a support frame 12 composed of multiple reaction frame bottom support structures, and the reaction frame 1, the reaction frame diagonal support frame 4 and the support frame 12 are all provided with multiple reflective stickers.

[0018] In this embodiment, the length of the support frame 12 is 33 m, while the conventional length is only 8 m.

[0019] The support frame 12 is composed of a plurality of support structures, and each of the support structures is connected by a plurality of structural members.

[0020] Multiple supporting structures are provided with horizontal limit columns.

[0021] The reaction frame diagonal brace 4 is composed of a plurality of reaction frame diagonal brace columns and a steel pipe 13 .

[0022] The multiple reflective stickers are respectively composed of a first reflective sticker 2, a second reflective sticker 5, a third reflective body 6, a fourth reflective sticker 3, a fifth reflective sticker 8, a sixth reflective sticker 7, a seventh reflective sticker 9, an eighth reflective sticker 10 and a ninth reflective sticker 11 which are arranged around the reaction frame 1, on one side of the reaction frame diagonal support frame 4 and on the end surface of the support frame 12.

[0023] The maximum length of the bottom support of the reaction frame is 33m (normally about 8m), connecting components are installed between the supports, and each support is installed with a horizontal limit column; the shield trolley weight is installed on the upper part of the reaction frame support; the reaction support is not required to be installed on the upper part of the reaction frame; positioning reflectors are installed on the reaction support structure, and deformation and displacement are regularly monitored during the initial stage of the shield, and the data guides the construction; the structure and process are simple.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the utility model content within the protection scope of the utility model.

Claims

1. An ultra-long reaction force support structure for shield tunneling, characterized in that: The invention comprises a reaction frame (1), one side of the reaction frame (1) is provided with a reaction frame diagonal support frame (4) connected thereto, the lower end of the reaction frame (1) is provided with a support frame (12) composed of a plurality of reaction frame bottom support structures, and the reaction frame (1), the reaction frame diagonal support frame (4) and the support frame (12) are all provided with a plurality of reflective stickers.

2. The super-long reaction force support structure initiated by a shield machine according to claim 1, characterized in that: The support frame (12) is 33 m long.

3. The super-long reaction force support structure initiated by the shield according to claim 2 is characterized in that: The support frame (12) is composed of a plurality of support structures, and each of the support structures is connected via a plurality of structural members.

4. The super-long reaction force support structure initiated by a shield machine according to claim 3 is characterized in that: A plurality of the supporting structures are all provided with horizontal limiting columns.

5. The super-long reaction force support structure initiated by a shield machine according to claim 1, characterized in that: The reaction frame diagonal brace (4) is composed of a plurality of reaction frame diagonal brace columns and a steel pipe (13).

6. The super-long reaction force support structure initiated by a shield machine according to claim 1, characterized in that: The plurality of reflective stickers are respectively composed of a first reflective sticker (2), a second reflective sticker (5), a third reflective body (6), a fourth reflective sticker (3), a fifth reflective sticker (8), a sixth reflective sticker (7), a seventh reflective sticker (9), an eighth reflective sticker (10) and a ninth reflective sticker (11) which are arranged around the reaction frame (1), on one side of the reaction frame diagonal support frame (4) and on the end surface of the support frame (12).

7. The super-long reaction force support structure initiated by a shield machine according to claim 1, characterized in that: A shield trolley is installed on the upper part of the support part of the support frame (12) and is weighted.

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