不同应用环境对中央分隔带绿化的防眩要求  

Requirements of Anti-glare Effect of Median Virescence under Different Conditions

作　　者：肖代全[1,2] 马荣国[1] 李铁强 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]华中科技大学土木工程与力学学院,湖北武汉430074 [3]沧州市交通局,河北沧州061000

出　　处：《公路交通科技》2010年第10期133-137,共5页Journal of Highway and Transportation Research and Development

摘　　要：为提高中央分隔带绿化植物防眩效果,解决平竖曲线路段绿化防眩效果与平直路段不一致的现象,研究平直路段绿化防眩原理和植物株距、种植高度计算方法,并计算在不同植物冠径和防眩角条件下的防眩植物株距,以及在不同道路横断面结构和交通组成条件下的防眩植物高度。对平曲线路段,提出不同于平直路段防眩角和防眩植物株距计算方法,并计算出与平直路段相对应的防眩角修正值。对竖曲线路段,提出不同于平直路段的防眩植物高度计算方法,并计算不同凹曲线半径对应的防眩高度加高值,同时得出凸曲线防眩植物下沿眩光防治方法。结论表明,平竖曲线路段的防眩植物配置需要在平直路段基础上以所提出的方法进行修正,才能达到与平直路段一致的防眩效果。In order to improve the anti-glare effect of median virescence and avoid the inconsistent anti-glare effect among horizontal curve,vertical curve and straight sections,the anti-glare principle and calculation methods of plant spacing and height in straight sections were studied.The anti-glare plant spacings with different plant diameters and anti-glare angels were calculated,and the anti-glare plant heights with different cross-sections and traffic compositions were calculated.The calculation methods of anti-glare angel and plant spacing for horizontal curve sections which different from those for straight sections were put forward,and the corrected values of anti-glare angel corresponding to straight sections were calculated accordingly.The calculation method of plant height for vertical curve sections which different from those for straight sections was proposed,and the increments of anti-glare plant height corresponding to different concave radii were calculated accordingly.The anti-glare plant control method for preventing glare in the lower edge of convex vertical curve sections was studied.It is concluded that the arrangement of anti-glare plant in the horizontal curve and vertical curve sections must be amended with the proposed method based on the anti-glare measurement in straight sections to reach agreement with the anti-glare effect of the straight sections.

关 键 词：交通工程 防眩 中央分隔带绿化 平直路段 平曲线 竖曲线 

分 类 号：U491[交通运输工程—交通运输规划与管理]