公路隧道照明优化设计与计算方法研究

Research of Optimization Design and Calculation Method of Illumination of Highway Tunnels

JTG/T D70/2-01—2014《公路隧道照明设计细则》列表数据有限,无法满足公路隧道照明按需控制连续参数取值需求,为解决上述问题,采用MATLAB曲线拟合工具,拟合了隧道入口段折减系数、中间段亮度和照明停车视距计算公式,最大拟合误差分别为-1.43%、-1.7%和8.48%。仿真分析了不同设计时速下隧道车流量、洞外亮度和隧道坡度变化对隧道照明功率变化的影响,提出了隧道照明节能优化措施。结果表明,设计车速超过60 km/h后,车流量和洞外亮度变化引起的照明功率变化开始快速增加。公式化的隧道照明设计方法可为不同工况的隧道照明功率优化计算提供设计参考。

The list data of JTG/T D70/2-01-2014 Guidelines for Design of Illumination of Highway Tunnels are limited,because of which the control of continuous parameter valuing can not meet the requirement of illumination of highway tunnels.The illumination reduction coefficient of tunnel entrance section,luminance of intermediate section and calculation formula of illumination parking stadia are fitted by curve fitting tool MATLAB,and the maximum fitting error is-1.43%,-1.7%and 8.48%respectively.The influences of vehicle flowrate in tunnel,luminance outside tunnel and tunnel slope variation on illumination power in tunnel are simulated and analyzed;and optimization methods for energy saving of illumination in tunnel are proposed.The results show that：1）The illumination power induced by vehicle flowrate in tunnel and luminance outside tunnel increases rapidly when the design vehicle speed is larger than 60 km/h.2）The formularized tunnel illumination design can provide reference for design and optimization of illumination power under any cases.