Butt section lining structure in shield tunnel
A shield tunnel and lining technology, which is applied in the direction of tunnel lining, tunnel, shaft lining, etc., can solve the problem of being unable to prevent the loosening of the assembled lining ring, threatening the structural stability of the constructed shield tunnel, and being unable to ensure the precise position of the segment assembly machine, etc. problem, to achieve the effect of simple construction
Active Publication Date: 2014-05-21
CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP
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Problems solved by technology
[0005] (1) The lining of the docking section must be laid after the shield machine is removed, and the segment assembly machine is removed at the same time as the shield machine. Therefore, when the segment assembly machine is placed in the tunnel hole, due to the space in the tunnel Restriction that the segment assembly machine cannot be placed, and the exact position of the segment assembly machine cannot be guaranteed;
[0006] (2) After dismantling the shield machine and the segment assembly machine, since there is no longitudinal thrust provided by the butt section, it is impossible to prevent the loosening of the assembled lining ring, which threatens the structural stability of the constructed shield tunnel
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[0018] Embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals represent like elements.
[0019] Such as figure 1 As shown, the lining structure of the adjoining section in the shield tunnel of the present invention includes a first lining ring 10 and a second lining ring 11 laid opposite to each other, an anti-loosening member 12 and a reinforced concrete lining 13 . Wherein, the anti-loosening part 12 includes a pair of anti-loosening steel plates 121 , a first shield shell 122 , a second shield shell 123 and a connecting steel plate 124 . The connecting steel plate 124 is located between the first shield shell 122 and the second shield shell 123, and the two ends of the connecting steel plate 124 are connected to the first shield shell 122 respectively. It is welded with the shield shell 123 of the second shield machine. The first shield shell 122 and the second shield shell 123 are located between the fi...
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The invention discloses a butt section lining structure in a shield tunnel, which comprises a pair of oppositely paved lining rings, a locking element and a reinforced concrete lining. The locking element and the reinforced concrete lining are located between the pair of lining rings; two ends of the locking element respectively resist against the pair of lining rings; the reinforced concrete lining is paved on the inner side of the locking element, and two ends of the reinforced concrete lining are respectively fixedly connected with the pair of lining rings. According to the butt section lining structure disclosed by the invention, the interference caused by dismantling the shield tunnel can be reduced, and assembled tube segments and the lining rings also can be effectively protected.
Description
technical field [0001] The invention relates to the field of shield tunnels, in particular to a lining structure of a butt joint section in a shield tunnel. Background technique [0002] The shield method is a fully mechanized construction method in the underground excavation method. It is to push the shield machine in the ground, and support the surrounding rock through the shield casing and segments to prevent collapse into the tunnel. A mechanized construction method in which the soil is excavated with a cutting device in front of the excavation face, transported out of the hole by an excavation machine, pushed in by a jack at the rear, and assembled with prefabricated concrete segments to form a tunnel structure. A shield tunnel is a tunnel constructed using the shield method. [0003] The lining structure in the existing shield tunnel is formed by first assembling a plurality of segments into a lining ring, and then assembling a plurality of lining rings. Moreover, a ...
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IPC IPC(8): E21D11/10E21D9/06
Inventor 肖明清邓朝辉焦齐柱季大雪王腾飞张惠兰
Owner CHINA RAILWAY SIYUAN SURVEY & DESIGN GRP