A thermal shield tunnel guide bracket

Abstract

The invention provides a heating power shield tunnel guide support which is distributed on the inner wall of a tunnel. The heating power shield tunnel guide support comprises two rings of continuous prefabricated reinforced concrete segments. Lining steel plate strips are arranged inside the two rings of segments, outer plate surfaces of the lining steel plate strips and inner plate surfaces of the segments are matched in shape, anchor bars are evenly distributed outside the lining steel plate strips for mutual fixation, and guide support vertical columns for supporting a water supply pipeline and a water return pipeline are arranged inside the steel plate strips of the two adjacent rings of prefabricated concrete segments. According to the heating power shield tunnel guide support, it can be guaranteed that a heating power pipeline can move in the axial direction, and axial or lateral horizontal thrust generated to the inner wall of the tunnel can be effectively supported.

Description

technical field [0001] The invention belongs to the technical field of tunnel pipelines, in particular to a thermal shield tunnel guide bracket. Background technique [0002] With the development of cities in our country, central heating has become an important way of urban heating, and the construction of thermal tunnels to centrally arrange thermal pipelines has become the preferred way of urban central heating. However, due to the fact that most of the urban ground space in our country is relatively precious, and the underground space is gradually saturated after being developed for various purposes, the available space is extremely limited, and the development of the second floor space has become an important issue that must be faced in the construction of thermal tunnels. . [0003] At present, the main construction method of thermal tunnels - shallow burial and underground excavation has many limiting factors, which can no longer meet the needs of urban thermal engine...

AI Technical Summary

Problems solved by technology

Usually, the existing guide bracket is directly anchored into the steel structure of the tunnel annular segment, and the concrete is poured at the same time and begins to form. It is very troublesome to repair and replace the bracket or need to adjust the position of the bracket, and it is very easy to damage the overall support strength of the bracket. Therefore, what kind of structure of the guide bracket and the connection method with the segment are used to bear the lateral thrust of the thermal pipeline, It has become one of the technical problems of the current shield tunneling engineering quality to limit the displacement of the thermal pipeline in other directions except the axial direction, and at the same time effectively bear the other forces mentioned above.

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