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Tunnel collapse treatment method capable of firstly arching and then filling

A treatment method and tunnel technology, which is applied in tunnels, tunnel linings, earthwork drilling, etc., can solve problems such as delays in construction progress, unstable rocks, casualties, etc., and achieve the goals of accelerating construction speed, shortening construction period, and reducing potential safety hazards Effect

Inactive Publication Date: 2019-07-23
MCC5 GROUP CORP SHANGHAI
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Problems solved by technology

For example, when a large landslide cavity is formed in a landslide, due to the large landslide area, the rock at the landslide site is extremely unstable and may continue to landslide at any time, which will not only delay the construction progress, but may also cause casualties. Those skilled in the art do not expect to see

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  • Tunnel collapse treatment method capable of firstly arching and then filling
  • Tunnel collapse treatment method capable of firstly arching and then filling
  • Tunnel collapse treatment method capable of firstly arching and then filling

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Embodiment Construction

[0030] The structure of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not intended as a limitation of the present invention.

[0031] Such as Figure 1~4 As shown, the present invention discloses a tunnel collapse treatment method that first arches and then fills, including the following steps:

[0032] Step S1, set up a temporary I-steel arch frame under the original initial support adjacent to the landslide (that is, the initial support of the non-collapsed section adjacent to the landslide), and set up a temporary I-steel arch in the gap between the original initial support and the temporary I-steel arch. Wooden wedges are inserted inside to reinforce the original primary support, and multiple temporary I-steel arch frames are connected together through steel bars; that is, the primary support at the front of the collapsed body is strengthened to prevent the expansion of the collapse o...

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Abstract

The invention relates to the technical field of building construction, in particular to a tunnel collapse treatment method capable of firstly arching and then filling. After a temporary I-steel arch is arranged below an original primary support adjacent to a collapse body to reinforce the original primary support, a construction platform is arranged at the tunnel face adjacent to the collapse bodyin a backfilling mode, the collapse body is cleaned after a grouting large pipe shed is formed at the top of the collapse body, and then concrete with a predetermined thickness is arranged in a collapse hole above the collapse body in a backfilling mode, so that potential safety hazards in construction can be effectively reduced, the construction speed is accelerated, the construction period is shortened, and the construction time and economic cost can be further effectively saved.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a tunnel collapse treatment method of first arching and then filling. Background technique [0002] Collapse is one of the most common and harmful phenomena during tunnel excavation. According to the different conditions of tunnel collapse, corresponding treatment measures must be taken. At present, the conventional process of dealing with collapse in tunnel construction at home and abroad has been compared. Mature, but in many cases, conventional methods of dealing with landslides have their limitations. For example, when a large landslide cavity is formed in a landslide, due to the large landslide area, the rocks at the landslide site are extremely unstable and may continue to landslide at any time, which will not only delay the construction progress, but also cause casualties. Unexpected to those skilled in the art. Contents of the invention [0003] In view ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/18E21D11/10
CPCE21D11/105E21D11/107E21D11/18
Inventor 马迁刘杨张明勇
Owner MCC5 GROUP CORP SHANGHAI
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