Concave-convex shield tunnel segment structure and transverse staggered segment splicing method
A shield tunnel segment and shield technology, which is used in tunnels, tunnel linings, earth-moving drilling, etc., can solve the problems of inaccurate splicing position, opening of segment ring seams and staggered platforms between rings, and difficult assembly. , to achieve the effect of improving stability and safety performance, improving integrity and waterproof ability, and avoiding assembly errors
Pending Publication Date: 2020-11-20
ZHEJIANG UNIV CITY COLLEGE
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[0004] The purpose of the present invention is to provide a "concave-convex" shaped shield tunnel segment structure and a splicing method for horizontally staggered segments, so as to solve the gaps in the ring seams of the segments and the staggered positions between the rings, the difficulty of assembling and the Problems such as inaccurate splicing positions
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[0039] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0040] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.
[0041] It should be noted that the terms "first" and "second" in the specification, claims and drawings of the present application are used to distinguish similar objects, ...
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The invention discloses a concave-convex shield tunnel segment structure and a transverse staggered segment splicing method. The concave-convex shield tunnel segment structure includes a shield head segment ring, a plurality of shield middle segment rings and a shield tail segment ring which are connected longitudinally in sequence. The shield head segment ring includes a first capping block and aplurality of first standard blocks, and the first capping block and the plurality of first standard blocks are sequentially connected circumferentially. The shield middle segment rings include a second capping block and a plurality of second standard blocks, and the second capping block and the plurality of second standard blocks are sequentially connected circumferentially. The shield tail segment ring includes a third capping block and a plurality of third standard blocks, and the third capping block and the plurality of third standard blocks are sequentially connected circumferentially. The first capping block, the second capping block and the third capping block are of the same structure. The first standard block and the second standard block are of the same structure and are of a concave-convex structure with a concave top and a convex bottom. The concave-convex structures fit with each other in the longitudinal direction. The third standard block is of a concave structure. A concave surface of the third standard block fits with a convex surface of the second standard block of the last shield middle segment ring. Grouting pore channels are formed on the shield head segment ring, the shield middle segment rings and the shield tail segment ring.
Description
technical field [0001] The invention relates to the field of shield tunnel structure design, in particular to a "concave-convex" shaped shield tunnel segment structure and a splicing method for horizontally staggered segment segments. Background technique [0002] With the advancement of urbanization, tunnel engineering construction has been fully developed, and shield tunneling method construction has been widely used due to its characteristics of less interference to the environment, high-speed and safe construction, and excellent engineering quality. The shield tunnel structure mainly adopts a prefabricated concrete lining structure, which connects the segments into a whole by circumferential bolt joints and longitudinal bolt joints. During the construction and service of the existing shield tunnel, the joints of the segments often open or stagger, and the structural integrity is affected, resulting in water leakage or even structural damage. Therefore, the joints of the...
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Login to View More IPC IPC(8): E21D11/08E21D11/10
CPCE21D11/08E21D11/083E21D11/105
Inventor 魏新江郝威王霄张默爆章丽莎魏纲朱汉华
Owner ZHEJIANG UNIV CITY COLLEGE