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Method for designing shading transition facility for road tunnel entrance

A technology for highway tunnels and entrances, applied in tunnels, mining equipment, earth-moving drilling, etc., can solve the problems of few visual reference objects, underestimated vehicle speed, and tunnel drivers overspeed, etc., and achieve early spatial changes, strong pertinence, and reduced vision. load effect

Inactive Publication Date: 2013-10-02
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the lack of visual reference objects in the tunnel (only intermediate frequency information), it is easy to underestimate the speed of the vehicle in the tunnel, resulting in the speeding behavior of tunnel drivers

Method used

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  • Method for designing shading transition facility for road tunnel entrance
  • Method for designing shading transition facility for road tunnel entrance
  • Method for designing shading transition facility for road tunnel entrance

Examples

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Embodiment Construction

[0038] 1) Implement this facility before the tunnel entrance. The arched steel structure column 3 and the transparent tempered glass plate 2 are pre-prepared and transported to the construction site. After assembly, the plane and side of the facility are as follows: Figure 5 , Image 6 shown.

[0039] 2) Preparation and installation of the main arched steel structure column: hollow tube structure is adopted, the specific material is Q235 carbon steel material, and it is painted with white anti-corrosion paint; The same width; the recommended spacing between adjacent rods is 5.0m to 7.0m, and the vertical height is increased by 1.0m from the opening to the outside; deep burial and compaction are used for installation.

[0040] 3) Preparation and installation of the transparent glass plate: the transparent glass plate is made of toughened glass material, the transparent glass plate 2 is 5.0-7.0m long and 2.5m wide, and is passed through the point-supported support device 6, t...

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Abstract

The invention relates to a method for designing a shading transition facility for a road tunnel entrance. The facility mainly comprises transparent toughened glass plates (2), a plurality of arched steel-structure upright columns (3), cicada-wing-shaped nontransparent shading films (5) and a shading transition retroreflection system, wherein the arched steel-structure upright columns (3) are gradually heightened outwardly from tunnel cave entrance end walls (1), and horn-shaped openings are formed by the arched steel-structure upright columns (3) and the transparent toughened glass plates (2) on the upright columns; the cicada-wing-shaped nontransparent shading films are arranged on inner layers of the transparent toughened glass plates, and contour line planes and side face projections of the shading films are Boltzmann curves, and the two sides of each arched steel structure are triangularly hollowed; the retroreflection system comprises medium-frequency steel-structure upright column contour marks (7), medium-frequency guardrail contour marks (8), high-frequency guardrail facade marks (9), high-frequency pavement marking lines (10) and high-frequency pavement protrusion marks (11). The shading transition facility has the advantages that the intense transition of space, luminance and reference of the tunnel entrance can be improved, and the black-hole effect on the tunnel entrance is relieved.

Description

technical field [0001] The invention relates to a method for designing shading facilities at the entrance of a highway tunnel. The facility alleviates the sharp transition of illumination, space and reference objects at the entrance of the highway tunnel, and belongs to the field of highway ancillary facilities. Background technique [0002] Investigations and studies have shown that the illumination at the entrance of highway tunnels changes drastically during the day, which can easily cause the driver's visual adaptation difficulties; at the same time, due to the constraints of economic conditions in the vast central and western regions of my country, the phenomenon of "high configuration and low use" of lighting is common, that is, the lighting rate in highway tunnel operation It is relatively low, and the driver's visual load is even heavier, which will cause the driver to appear "black eyes" when driving into the tunnel, induce bad driving behavior, and even cause traffi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/14
Inventor 杜志刚黄发明万红亮郑展骥陈宝林蔡康郭连杰
Owner WUHAN UNIV OF TECH
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