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A box-shaped roof structure for an urban tunnel bifurcation

A bifurcation and roof technology, applied in tunnels, tunnel linings, shaft equipment and other directions, can solve the problems of slow tunnel construction, heavy roof self-weight, poor economic performance, etc., to speed up construction, reduce construction difficulty, and improve durability. performance effect

Active Publication Date: 2022-06-28
江苏瑞沃建设集团有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the roof structure used for tunnel bifurcations often has the following defects: 1. The installation speed of the existing roof structure is slow, and it is not conducive to subsequent maintenance and disassembly work, which slows down the tunnel construction speed; 2. The existing roof structure has a large deadweight , so that the economic performance is poor; 3. The existing roof structure is prone to breakage and cracking during a period of use, so that the supporting load of the roof structure is not high, and the bearing capacity is not strong; 4. When the existing roof structure is buried underground , while the thickness of the covering soil cannot be effectively reduced, the waterproof performance of the roof is poor, resulting in poor durability

Method used

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  • A box-shaped roof structure for an urban tunnel bifurcation
  • A box-shaped roof structure for an urban tunnel bifurcation
  • A box-shaped roof structure for an urban tunnel bifurcation

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Embodiment Construction

[0026] In order to make the technical means, creative features, achievement goals and effects realized by the present invention easy to understand, the present invention will be further described below with reference to the specific embodiments.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end" and "the other end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, a specific orientation, and a specific orientation. The orientation configuration and operation are therefore not to be construed as limitations of the present invention. Furthermore, the terms...

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Abstract

The invention discloses a box-shaped roof structure for an urban tunnel bifurcation. There are three empty chambers in the middle of the roof body, an upper reinforcement device and a lower reinforcement device are fixedly connected between the three empty chambers, and pouring holes are opened in the left and right parts of the roof body. The box-shaped roof structure of a city tunnel bifurcation according to the present invention is guided by the guide column installed on the upper side beam and the guide hole opened on the lower side beam, so that the upper roof and the lower roof can be quickly connected. Alignment, thereby speeding up the construction speed; several empty chambers can reduce the weight of the roof structure, making the roof more economical, and the reinforcement ribs can strengthen the load capacity of the roof body, thereby improving the bearing capacity of the structural roof; in addition, the waterproof layer can improve Durability of the roof.

Description

technical field [0001] The invention relates to the technical field of urban tunnel construction, in particular to a box-shaped roof structure for a branch of an urban tunnel. Background technique [0002] With the development of urban tunnel construction, its functional requirements are getting higher and higher. In most cases, urban tunnels only need to meet the traffic demand in one direction, but sometimes it is necessary to consider traffic diversion and connection in multiple directions. At this time, complex tunnel fork forms emerge as the times require. However, the roof structure used for tunnel bifurcations often has the following defects: 1. The existing roof structure is slow in installation, which is not conducive to subsequent maintenance and disassembly work, which slows down the tunnel construction speed; 2. The existing roof has a large self-weight. , resulting in poor economic performance; 3. The existing roof structure is prone to fracture and cracking du...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D11/08E21D11/38E21F16/02
CPCE21D11/08E21D11/38E21F16/02
Inventor 张行生孙小峰周苏里刘正权陆游施冠楼胡锦根
Owner 江苏瑞沃建设集团有限公司
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