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
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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 settlem

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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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[0031] Specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent transformations made on the basis of the technical solutions of the present application fall within the protection scope of the present invention.

[0032] A kind of advanced locking feet to strengthen the soft soil tunnel arch structure. The locking foot conduit at the position of the arch foot of the steel arch of the upper step 1 is the ground leading locking guide 4, and the ground leading locking guide 4 is advanced from the ground 6 For the built-in locking foot conduit, the ground leading locking foot conduit 4 is connected to the steel arch of the upper step 1; the locking foot conduit at the arch foot position of the middle step 2 steel arch is the middle and lower step leading locking foot conduit 5, the middle and lower steps The leading foot guide tube 5 is a locking foot guide set in ad...

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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...

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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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