Novel anti-seismic support special for shield tunnel pre-buried channel

Abstract

The invention discloses a novel anti-seismic support special for a shield tunnel pre-buried channel and relates to the technical field of underground engineering pipeline mounting. The anti-seismic support comprises a base steel plate, transverse inclined strut angle steel, supporting angle steel, longitudinal inclined strut angle steel, pushing bolts, sliding groove T-shaped bolts, nuts and a pipe clamp. The transverse inclined strut angle steel and the longitudinal inclined strut angle steel are welded to the base steel plate; the supporting angle steel is welded in the middle of the base steel plate; the base steel plate is fixed to the pre-buried channel through the sliding groove T-shaped bolts and the nuts; the multiple pushing bolts are arranged on the base steel plate; and the pipe clamp is fixed to the supporting angle steel. According to the novel anti-seismic support special for the shield tunnel pre-buried channel, the anti-seismic requirement can be met, and secondary tapping in a shield segment can be avoided, so that the problem of pipeline anti-seismic mounting difficulty extensively existing in the underground engineering of the pre-buried channel is satisfactorily solved, and the novel anti-seismic support has the advantages of being simple in structure, reasonable in arrangement, low in manufacturing cost and the like.

Description

technical field [0001] The invention relates to the technical field of installation of underground engineering pipelines, in particular to a new anti-seismic support specially used for pre-buried channels of shield tunnels. Background technique [0002] With the development of economy and technology, in order to facilitate the mechanical and electrical installation of shield tunnels, avoid secondary opening of shield segments, and maintain the effect of fully waterproof shield tunnels, pre-buried channel technology is more and more widely used in the field of underground engineering. With the implementation of "Code for Seismic Design of Building Electromechanical Engineering" (GB50981-2014), the electromechanical system of important projects needs to be specially designed for earthquake resistance. [0003] see as Figure 7 As shown in the figure, except that the middle base steel plate 1 needs to be fixed on the pre-embedded chute with T-bolt 6 and nut 7 of the chute, the ...

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Problems solved by technology

Although this type of support meets the seismic requirements and has good horizontal and vertical stability, it cannot meet the engineering requirements due to the need for secondary openings

[0004] see as Figure 8 As shown, the base plate 1 of the ordinary chute bracket is directly fixed on the pre-embedded chute by the T-shaped bolt 6 and the nut 7 of the chute. There is no horizontal brace, and the lateral stability cannot be guaranteed. holes, but it is difficult to meet the requirements of seismic codes

[0005] To sum up, in the past, the ordinary chute support had no transverse braces, so it was difficult to meet the lateral seismic requirements, and the ordinary seismic support with transverse braces could not avoid secondary openings. Therefore, the underground engineering field urgently needs a A new type of anti-seismic support that meets the anti-seismic requirements and can avoid secondary openings on the shield segments

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