排水沥青桥面铺装排水不利问题分析及优化对策  

Analysis of Adverse Drainage Problems of Drainage Asphalt Bridge Deck Pavement & Optimization Countermeasures

作　　者：陶辉 TAO Hui(Lin Tung-Ye&Li Guo-Hao Consultants Shanghai Co.,Ltd.,Shanghai 200437,China)

机构地区：[1]上海林同炎李国豪土建工程咨询有限公司,上海200437

出　　处：《中国市政工程》2024年第3期20-22,151,152,共5页China Municipal Engineering

摘　　要：排水沥青路面因突出的环保效益,在高等级道路的建设中应用越来越广。总结分析了排水沥青在高架桥面铺装中应用的实际排水不利问题,在超高缓和段此类复杂平纵条件下,提出技术参数上控制缓和段长度和复合坡度,方法上采用标高等值线优化设计方法;在超宽桥面路段,提出适当加大横坡和增设内部空腔排水通道的优化对策;在大纵坡路段,推荐优先采用普通沥青并提出路面交界处的细节排水构造。针对桥梁伸缩缝阻水问题,提出交界处设置抗冲压梯形排水横管的优化方案。Drainage asphalt pavement has been widely used in the construction of highgrade roads due to its outstanding environmental benefits.It summarizes & analyzes the actual adverse drainage problems of drainage asphalt in the application of elevated bridge deck pavement.Under the complex horizontal & vertical conditions of super-high transition section,it is proposed to control the length and composite slope of transition section in terms of technical parameters,and adopt the elevation contour optimization design method in terms of method.In the section of super wide bridge deck,the optimization countermeasures of appropriately increasing cross slope and adding internal cavity drainage channel are put forward;in the large longitudinal slope section,it is recommended to give priority to the use of ordinary asphalt and propose the detailed drainage structure at the pavement junction.Aiming at the water blocking problem of bridge expansion joints,the optimization scheme of setting anti stamping trapezoidal drainage horizontal pipes at the junction is proposed.

关 键 词：排水沥青 排水不利问题 超高缓和段 桥梁伸缩缝 内部空腔排水 

分 类 号：U416.217[交通运输工程—道路与铁道工程]