Tunnel inverted arch construction die carrier and tunnel inverted arch construction process

The technology of a formwork and a tunnel is applied in the field of tunnel inverted arch construction formwork and tunnel inverted arch construction technology, and can solve problems such as long time required for supporting formwork, difficult construction quality assurance, and difficulty in formwork installation.

Active Publication Date: 2015-04-08
CHINA RAILWAY 20 BUREAU GRP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nowadays, when constructing tunnel inverts, combined formwork is usually used for pouring construction. Since the tunnel invert is in the reverse arch shape, there are difficulties in supporting and installing the formwork during actual construction, and it ta

Method used

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  • Tunnel inverted arch construction die carrier and tunnel inverted arch construction process
  • Tunnel inverted arch construction die carrier and tunnel inverted arch construction process
  • Tunnel inverted arch construction die carrier and tunnel inverted arch construction process

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Embodiment Construction

[0082] Such as figure 1 , figure 2 and image 3As shown, the constructed inverted arch is divided into a central arch section 1-1 and two side arch sections 1-2 respectively located on the left and right sides of the central arch section 1-1 along the transverse width direction of the constructed tunnel hole 4. The structures of the side arch sections 1-2 are the same and they are arranged symmetrically. The construction formwork of the tunnel invert arch according to the present invention includes two side arch sections 1 respectively for the inverted arch to be constructed. -2 the side formworks for construction, the two side formworks have the same structure and are arranged symmetrically, and the two side formworks are arranged along the longitudinal direction of the tunnel hole 4 to be constructed. The side formwork includes an arc-shaped steel formwork 2 for shaping the upper surface of the side arch section 1-2, a formwork support frame 3 that is positioned above th...

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Abstract

The invention discloses a tunnel inverted arch construction die carrier and a tunnel inverted arch construction process. The die carrier comprises two side die carriers used for respectively constructing two side arch sections of a constructed inverted arch, wherein each side die carrier comprises an arc-shaped steel template for performing shaping construction on the upper surfaces of the side arch section, a template support which is positioned above the arc-shaped steel template and used for supporting the arc-shaped steel template and a front supporting and positioning mechanism positioned at the front side of the arc-shaped steel template. The adopted tunnel inverted arch construction process comprises the following steps of: 1, performing construction of a first inverted arch section, namely installing and positioning the side die carriers, casting inverted arch concrete and detaching a die; 2, performing construction of the other inverted arch section; 3, repeating the step 2 multiple times until the whole construction process of the constructed inverted arch is finished. The tunnel inverted arch construction die carrier is reasonable in design, convenient to realize, and simple and convenient in construction process; in the construction process, the templates are not deviated, the construction effect is god, not only can the tunnel inverted arch construction progress be quickened, but also the construction quality of the constructed and molded inverted arch is easily ensured.

Description

technical field [0001] The invention belongs to the technical field of tunnel inverted arch construction, and in particular relates to a tunnel inverted arch construction formwork and a tunnel inverted arch construction process. Background technique [0002] The inverted arch is a reverse arched structure set at the bottom of the tunnel to improve the stress conditions of the upper support structure. It is one of the main components of the tunnel structure and is the foundation of the tunnel structure. On the one hand, the inverted arch should transfer the stratum pressure in the upper part of the tunnel through the tunnel side wall structure or effectively transmit the load on the road to the underground, and also effectively resist the reaction force from the stratum in the lower part of the tunnel. The inverted arch and the secondary lining of the tunnel constitute the whole tunnel and increase the stability of the tunnel structure. Nowadays, when constructing tunnel inv...

Claims

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Application Information

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IPC IPC(8): E21D11/18
CPCE21D11/18
Inventor 翟德平吴应明冀卫青赵鹏涛张云飞李兴加武荣杨军峰刘广庆
Owner CHINA RAILWAY 20 BUREAU GRP
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