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Rapid assembly type supporting bracket and supporting method

An assembled and fast technology, which is applied in shaft equipment, earthwork drilling, wellbore lining, etc., can solve problems such as difficult installation, affecting support efficiency, and complicated setting procedures, so as to improve installation efficiency, ensure tightness, and realize automatic The effect of the lock effect

Active Publication Date: 2021-03-19
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]However, in order to ensure the overall stability of the existing steel arch support, the general setting process is complicated, which makes installation difficult and affects the support efficiency

Method used

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  • Rapid assembly type supporting bracket and supporting method
  • Rapid assembly type supporting bracket and supporting method
  • Rapid assembly type supporting bracket and supporting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The quick-assemble support bracket includes several annular shield groups arranged in sequence on the inner wall of the tunnel; as figure 1 , figure 2 as shown, figure 1 It is a structural perspective view of the shield group; figure 2 It is a structural side view of the shield group. The shield group includes shield pieces, which are connected at the ends of adjacent shield pieces; the shield pieces include a shield frame 11 and a shield plate 12, and the shield plate 12 is fixedly arranged on the shield frame 11, the shield frame 11 is arranged in an arc-shaped structure, and the shield frame 11 is connected end to end by the shield plate 12 to form a closed ring.

[0034] The shield frame 11 is manufactured by welding I-beams, and the shield frame 11 includes at least two arc-shaped parts arranged in parallel and a reinforcement part connecting the arc-shaped parts, and the arc-shaped parts are bent by the I-beam system, thereby ensuring the stability of the ov...

Embodiment 2

[0045] A positioning component is also provided on the shield plate 12, and the positioning component is used to realize pre-positioning when adjacent shield pieces are installed.

[0046] Such as Figure 7 as shown Figure 7 It is a structural view of the positioning assembly; the positioning assembly includes a movable pin and a guide groove 15, the movable pin or the guide groove 15 is set on the shield plate 12, and the adjacent two shield plates The movable pin is correspondingly arranged with the guide groove 15 .

[0047] Such as image 3 and Figure 4 as shown, image 3 It is a structural view of the shield plate 12 provided with the positioning groove; Figure 4 It is a structural view of the shield plate 12 where the movable pin is set; generally, the guide groove 15 is extended along the width direction of the shield piece to facilitate the installation of the shield piece. When assembling the shield pieces, due to the need to assemble the shield pieces into a...

Embodiment 3

[0054] The support method of the quick-assembled support bracket of the present invention, specifically, includes the steps;

[0055] S1, connecting the standard blocks together to form an arc body;

[0056] S2, fixedly connecting one of the connecting blocks at both ends of the arc body, thereby forming an annular structure with a gap;

[0057] S3, placing the wedge block corresponding to the notch, and horizontally translating into the notch along the axial direction of the shield group, finally forming the annular shield group;

[0058] S4, by connecting the shield groups or arranging the shield groups at intervals to form the quick-assemble support bracket.

[0059] Generally, the connection between the standard blocks 3 and the connection between the connection block 2 and the standard block 3 all adopt bolt connection, that is, the connection block 2 and the connection block 2 are realized through the first mounting hole 13. The connection of standard block 3 is descri...

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Abstract

The invention discloses a rapid assembly type supporting bracket and a supporting method. The rapid assembly type supporting bracket comprises a plurality of annular shield sets sequentially arrangedon the inner wall of a tunnel; each shield set comprises shield sheets, and the ends of the adjacent shield sheets are connected; each shield sheet comprises a shield framework and shield plates, theshield plates are fixedly arranged at the two ends of the shield framework, the shield framework is of an arc-shaped structure, and the shield framework is connected end to end through the shield plates to form a closed circular ring; and each shield sheet comprises at least one wedge-shaped block, two connecting blocks corresponding to the wedge-shaped block and a plurality of standard blocks, wherein the wedge-shaped block, the connecting blocks and the standard blocks are all arc-shaped, the connecting blocks are symmetrically arranged on the two sides of the wedge-shaped block, and the wedge-shaped block is connected with the standard blocks through the connecting blocks. The rapid assembly type supporting bracket is simple in structure, the wedge-shaped blocks are adopted to guaranteethe installation tightness of the shield sets, the self-tightening effect after installation is achieved, the self-locking effect is achieved, rapid assembly of the H-shaped steel supporting bracketcan be achieved, and the installation efficiency of the support is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering support, in particular to a rapidly assembled support bracket and a support method. Background technique [0002] At present, the open TBM (full-face tunnel boring machine) has strong engineering adaptability under the conditions of II and III surrounding rocks, which can not only ensure the safety, quality and speed of tunnel construction, but also save tunnel construction costs; Progress, especially the development of initial support technology, rational use of steel arch (also known as steel support) and steel row comprehensive support technology and corresponding construction technology, engineering adaptability of open TBM under the condition of IV surrounding rock Greatly strengthened, under the premise of ensuring safety and quality, the excavation speed has been greatly improved. [0003] However, in order to ensure the stability of the overall state of the existing steel arch ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18E21D11/22
CPCE21D11/18E21D11/22
Inventor 唐彬程桦姚直书荣传新王雪松周建树代迈
Owner ANHUI UNIV OF SCI & TECH
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