Periodic cushion layer of vibration reduction and isolation barrier for subway tunnel

Abstract

A subway tunnel vibration reduction and isolation barrier periodic cushion layer comprises vibration isolation piles buried underground and a vibration isolation and reduction periodic barrier cushion layer, and the vibration isolation and reduction periodic barrier cushion layer comprises rigid cushion layers and Triangular hierarchical honeycomb cushion layers which are alternately arranged up and down. The rigid cushion layer is composed of two reinforced concrete layers and a concrete layer clamped between the two reinforced concrete layers. The Triangular hierarchical honeycomb cushion layer is made of a rubber material, and the Triangular hierarchical honeycomb cushion layer is of a Triangular hierarchical honeycomb structure; at least one row of vibration isolation piles are arranged on the side, close to vibration wave propagation, of the vibration isolation and reduction period barrier cushion layer, and each row of vibration isolation piles comprises a plurality of vibration isolation piles. The influence caused by vibration generated by tunnel subway operation can be effectively obstructed, the influence of vibration before reaching the building is greatly reduced, and the influence and loss of residents and the building are reduced.

Description

technical field [0001] The invention relates to the technical field of subway vibration reduction and isolation, in particular to a periodic cushion layer of a subway tunnel vibration reduction and vibration isolation barrier. Background technique [0002] With the development of urbanization and the increase of population density, tunnel traffic has gradually become an indispensable mode of transportation in cities. Compared with other traffic in the city, tunnel traffic has the advantages of large volume, punctual arrival, land saving, fast speed, safety and reliability. The emergence of tunnel traffic has brought convenience and development to cities large and small. However, with the improvement of subway speed and long-term use, and the improvement of citizens' demands for quality of life, the environmental problems caused by its operation have become more and more prominent. Especially in the case of more and more dense urban buildings, the vibration and noise pollut...

AI Technical Summary

Problems solved by technology

Most of the current studies focus on taking measures from the tunnel and the transmission path, but there are relatively few studies on the building structure (vibration receptor)

At the same time, installing vibration isolation trenches in deep buried tunnels is cumbersome and difficult to operate. How to increase the effect of vibration reduction and vibration isolation is an important step in solving the environmental problems caused by subway vibration at this stage.

[0004] At present, the application of honeycomb structure materials by relevant scholars is mostly in the automotive field. High-quality honeycomb structures have the characteristics of light weight, large energy absorption, and large stability, and composite honeycomb structure materials are used as a good energy absorption. The application of materials in civil engineering has not yet been well developed

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