Mold type lining and foam concrete combined supporting structure and construction method

Abstract

The invention discloses a mold type lining and foam concrete combined supporting structure and a construction method. The mold type lining and foam concrete combined supporting structure comprises a mold body. Foam concrete is poured on the two sides of the mold body. The two side faces of the foam concrete are sealed through inverted buckles. One end of each inverted buckle is anchored inside a rock body, and I-steel is fixedly mounted at the other end of each inverted buckle. The foam concrete is sealed between the two inverted buckles through the I-steel. The mold body is divided into three sections. Two sections are mounted on the left side and the right side of a tunnel correspondingly, and the other section is mounted on the tunnel vault. The portion, on the tunnel vault, of the mold body and the portions, on the left side and the right side of the tunnel, of the mold body are fixedly connected through stirrups. Gaps between the stirrups and the mold body are filled with the foam concrete. Four automatic pressure relief valves are mounted at the tops and the bottoms of the portions, on the left side and the right side of the tunnel, of the mold body correspondingly, and an automatic pressure relief valve is mounted in the middle of the portion, on the tunnel vault, of the mold body. The mold type lining and foam concrete combined supporting structure is low in manufacturing cost, easy to construct and high in practicability and can better meet the safety requirements.

Description

technical field [0001] The invention relates to the technical field of tunnel support, in particular to a support structure in which tire lining and foam concrete are used in combination. In the tunnel support technology of the present invention, the carcass and foam concrete are used in combination, so that its application range is wider and it can It can better solve some problems existing in actual engineering, and can better solve the problem of traditional support deformation, damage and collapse. Background technique [0002] At present, tunnel support mainly adopts primary anchoring and shotcreting methods, secondary lining and so on. These methods can effectively withstand the pressure of the tunnel rock mass, but the pressure of the surrounding rock is directly added to these support structures, resulting in large deformation of these support structures and shortening their life. The deformation of the surrounding rock is a process with a certain duration, which le...

AI Technical Summary

Problems solved by technology

These methods can effectively withstand the pressure of the tunnel rock mass, but the pressure of the surrounding rock is directly applied to these support structures, resulting in large deformation of these support structures and shortening their life.

The deformation of the surrounding rock is a process with a certain duration, which leads to a longer construction period and an increase in later maintenance costs. The tunnel support technology of this type is the result of research on this type of problem.

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