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Tunnel arch frame structure and process for reinforcing soft soil layer by driving locking feet in advance

A technology of weak soil layer and frame structure, applied in tunnels, tunnel linings, mining equipment, etc., can solve problems such as adverse social impact, large traffic flow, pipeline burst, etc., to improve anti-settling ability, small pipe diameter, reduce side the effect of pressure

Pending Publication Date: 2020-03-24
JINAN URBAN CONSTR GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because there are many road pipelines on the ground, and the traffic flow on the roads on the ground is relatively large, if the settlement cannot be controlled in time, it will cause: ground subsidence, pipeline burst, traffic interruption, and great adverse social impact

Method used

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  • Tunnel arch frame structure and process for reinforcing soft soil layer by driving locking feet in advance

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Embodiment Construction

[0031] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.

[0032] A tunnel arch structure with locking feet in advance to reinforce the weak soil layer. The locking foot conduit at the arch foot position of the steel arch frame on the upper step 1 is the ground advanced locking foot conduit 4, and the ground advanced locking foot conduit 4 is advanced from the ground 6. The foot-locking conduit installed, the ground-leading foot-locking conduit 4 is connected to the steel arch of the upper step 1; Leading foot-locking conduit 5 is a foot-locking conduit laid in advance from upper step 1, and leading-locking foot conduit 5 of middle and lower steps is connected with steel arch frame of middl...

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Abstract

The invention belongs to the technical field of tunnel construction, and particularly relates to a tunnel arch frame structure and process for reinforcing a soft soil layer by driving locking feet inadvance. According to the scheme that ground advanced locking foot guide pipes are driven on the ground in advance, and middle and lower step locking foot guide pipes are driven in an upper step holein advance, the time of locking foot construction is saved, the time of soil exposure after each step of excavation is shortened, and the anti-sedimentation capacity of a steel arch frame connected with the tunnel arch frame structure is improved.

Description

technical field [0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a tunnel arch structure and technology for reinforcing soft soil layer by setting locking feet in advance. Background technique [0002] In the construction process of underground tunnels such as railways, highways, municipalities, and water conservancy, especially in the construction of urban underground roads, under the surface roads that have been opened to traffic, when using underground shallow buried tunnels to build expressways, if the geological conditions For weak soil layer, tunnel settlement control is particularly critical. Because there are many road pipelines on the ground, and the traffic flow on the roads on the ground is relatively large, if the settlement cannot be controlled in time, it will cause: ground subsidence, pipeline burst, traffic interruption, and great adverse social impact. The tunnel excavation process will cause disturban...

Claims

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Application Information

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IPC IPC(8): E21D11/18E21D11/10
CPCE21D11/10E21D11/18
Inventor 金宝马松岐孙久亮张超褚传臣刘金强岳伟邵广彪
Owner JINAN URBAN CONSTR GRP
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