草皮特性对生态草皮沟排水性能影响分析  

Analysis of the Effect of Turf Characteristics on the Drainage Performance of Ecological Turf Ditches

作　　者：李晓旭 李志斌 王富春[2] 汉瑞哲 袁伟 LI Xiaoxu;LI Zhibin;WANG Fuchun;HAN Ruizhe;YUAN Wei(Shanxi Province Transportation Planning Survey and Design Institute Co.,Taiyuan Shanxi 030032,China;Changan University,Xi’an Shaanxi 714000,China)

机构地区：[1]山西省交通规划勘察设计院有限公司,山西太原030032 [2]长安大学,陕西西安714000

出　　处：《交通节能与环保》2024年第6期145-148,173,共5页Transport Energy Conservation & Environmental Protection

摘　　要：生态草皮沟是一种在公路土质排水沟渠中种植草类,以保护土沟结构、抵抗冲刷、加快雨水泄流的一种自然或人工渠道。与传统的浆砌片石排水沟相比,生态排水沟对沿线自然环境影响小,且能够与公路周围生态环境融为一体,具有良好的生态效益。本研究旨在探讨不同长度和密度的草皮对草皮沟流量及水动力学参数的影响。通过评估生态草皮沟在公路排水系统中的应用效果,结合现场水流特性观测数据,应用均匀流状态下的曼宁方程来计算草皮沟的糙率值。本研究还着重分析了草皮沟糙率的变化趋势,以便为草皮沟的流量设计提供精确的计算依据。Ecological turf ditch is a kind of natural or artificial channel for planting grasses in highway soil drainage ditch to protect the structure of soil ditch,resist scouring and accelerate rainwater drainage.Compared with the traditional slurry chip stone drainage ditch,the ecological drainage ditch has little impact on the natural environment along the route,and can be integrated with the ecological environment around the highway,which has good ecological benefits.The aim of this study is to investigate the effects of turf of different lengths and densities on the flow rate and hydrodynamic parameters of turf ditches.By evaluating the application effect of ecological turf ditch in highway drainage system,combined with on-site water flow characteristic observation data,the Manning equation under uniform flow state is applied to calculate the roughness value of turf ditch.This study also focuses on analyzing the trend of roughness changes in turf ditches,in order to provide accurate calculation basis for the flow design of turf ditches.

关 键 词：路基排水 生态草皮沟 模型试验 糙率公式 曼宁公式 

分 类 号：U417.3[交通运输工程—道路与铁道工程]