Tunnel integral inverted arch structure and construction technology thereof

A construction technique and integral technology, applied in tunnels, tunnel linings, shaft equipment, etc., can solve problems such as difficulty in guaranteeing construction quality and progress of inverted arches, restricting construction progress of inverted arches and filling, restricting construction progress of tunnels, etc., to achieve shortening The effect of invert and filling operation time, shortening process gap time, and ensuring structural stability

Pending Publication Date: 2022-07-05
中铁二十局集团第五工程有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

And in the current tunnel construction, often due to the lack of ideal supporting equipment and construction technology, the quality and progress of inverted arch construction are difficult to guarantee, and the cost is also high
[0003] Therefore, the existing inverted arch formwork can only pour the inverted arch part, and the inverted arch filling side form can only be installed after the strength meets the requirements. Restricts the overall construction progress of the tunnel; and also greatly affects economic benefits

Method used

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  • Tunnel integral inverted arch structure and construction technology thereof
  • Tunnel integral inverted arch structure and construction technology thereof
  • Tunnel integral inverted arch structure and construction technology thereof

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Embodiment Construction

[0046] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0047] It should be noted that if there are directional indications (such as up, down, left, right, front, back, etc.) involved in the embodiments of the present invention, the directional indications are only used to explain the relationship between various components in a specific posture If the specific posture changes, the directional indication also changes accordingly.

[0048] In addition, if there are descriptions involving "fir...

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Abstract

The invention discloses a tunnel integral type inverted arch structure and a construction process thereof, and the construction process of the tunnel integral type inverted arch structure comprises the following steps: excavating a tunnel inverted arch section to be poured at a tunnel face, and performing pretreatment; manufacturing an inverted arch template; the inverted arch side wall body and the end mold body are assembled into a whole; after a filling side formwork and the end formwork body are assembled into a whole, the filling side formwork and the end formwork body are hoisted to the to-be-poured tunnel inverted arch section; concrete is poured into the interior of the end formwork body, the interior of the filling side formwork and the interior of the inverted arch side wall body, so that the transverse construction joints are staggered within a first preset value; detection and analysis are carried out through a stratum sound wave CT detection technology; and after the concrete is formed, the inverted arch formwork and the filling side formwork are removed. According to the technical scheme, the construction quality can be guaranteed, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of tunnel inverted arch structures, in particular to a tunnel integral inverted arch structure and a construction process thereof. Background technique [0002] In recent years, many collapse accidents have occurred in the process of tunnel construction at home and abroad, resulting in greater casualties and property losses. Investigation and statistics show that the main reasons for these accidents are improper initial support of the tunnel and the failure to follow up the subsequent processes such as inverted arch and secondary lining in time. In order to ensure the safety of railway tunnel construction, the Ministry of Railways has stricter and stricter requirements on the distance between the inverted arch and the tunnel face. The distance between the faces shall not exceed 90m, the surrounding rock of grade IV shall not exceed 50m, and the surrounding rock of grade V and above shall not exceed 40m. Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 冀卫清段武全李朝成冷志华张向前耿国强尹京龙李娴
Owner 中铁二十局集团第五工程有限公司
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