Buffer energy-absorbing wall structure for front of highway tunnel

Abstract

The invention provides a buffer energy-absorbing wall structure in front of a highway tunnel, including a concrete layer, a spring and a lower washer, the surface of the cylindrical conjoined body and the gaps are filled with a concrete layer, and the cylindrical conjoined bodies are arranged horizontally on the wall surface; The bottom of the concrete layer under the cylindrical connecting body is fixedly arranged on the top of the trapezoidal block; the trapezoidal blocks are arranged at intervals and a shock absorbing group is arranged between every two trapezoidal blocks; the shock absorbing group and the bottom of the trapezoidal block are provided with a support plate ; The bottom of the support plate is laid with a pressure dislocation body. The arrangement of the cylindrical connecting body of the present invention, the cylindrical connecting body is connected to each other through the connecting body with a width of 3MM in the middle, so that the structure of the wall surface has strong rigidity while having stronger toughness, and when subjected to external impact, the impact The energy can cause a large deformation and displacement of the cylindrical conjoined body on the wall, but it also reduces the rebound effect of the wall, reducing the damage to the impacting vehicle and the damage to the overall structure of the tunnel.

Description

technical field [0001] The invention belongs to the technical fields of building construction and building structure, and in particular relates to a buffer energy-absorbing wall structure in front of a road tunnel. Background technique [0002] Collision safety is an important indicator of the safety of various vehicles, and the wall in front of the road tunnel is in the stage where accidents occur frequently due to changes in light and darkness and changes in road conditions, and then the construction of the road tunnel is more complicated. It is a vulnerable structure. [0003] Such as the FRP flexible anti-collision wall bridge guardrail of application number CN201710318996.4, the present invention provides an FRP flexible anti-collision wall bridge guardrail, which is characterized in that it includes at least one guardrail segment, and the guardrail segment includes FRP flexible thin The shell block member and the FRP flexible thin shell block member are provided with ...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above technical problems, the present invention provides a buffer energy-absorbing wall structure in front of the road tunnel to solve the lack of flexibility of the outer wall of the existing road tunnel, which is prone to collapse after being subjected to a strong external impact, and the wall that is too rigid will also cause The problem of secondary damage caused by the impacted vehicle

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