路侧宽容性边沟形式选择与设计研究

The Study of Roadside Forgiving Side Ditch Select Shape and Design

路侧边沟在形式选择与设计中,往往关注其功能性,忽略其安全性。边沟形式的选择、断面尺寸的确定存在着"传统化"和"标准化"现象。分析了宽容性边沟形式及其适应性,然后结合工程实例进行研究,选取具体工程典型路段进行了边沟水力计算,且通过选用不同形式的边沟进行计算比较。研究表明,边沟形式的选择不应只依据排水的要求,还要结合路侧地形地貌、路基填挖高度以及对行车安全等方面灵活选取,体现宽容设计理念。

During the side ditch design and shape select, people often put attention to its function and ignore its safety. The selecting of the side ditch profile and its section size is traditional and standard. The paper gives emphasis on forgiving side ditch shapes and their adaptability, and then combining with a case in study, hydraulic calculations of the side ditch along representative segments of the case were done, and select different side ditch to calculate and compare. The study suggests that side ditch shape select doesn＇t merely according to the demand of drainage, and still combining with roadside landform and physiognomy, roadbed＇ height,vehicle safety and other aspects, embodying roadside forgiving design idea.