土工格栅在土质陡边坡的技术应用

On Technology Application of Geogrid Used in Soil Steep Slope

在对旧路进行拓宽改造时,按常规坡率放坡,会遇到路基加宽部分坡角落在路旁边的水塘或河道中,增加处理难度和占地费用。介绍了天津杨北公路改建过程中,为避免占压河道,节省投资,首次采用加土工格栅的陡边坡,使其边坡率变小变陡。经过10 a使用,未出现任何问题,完全达到设计要求。

During widening reconstruction of existed road,the widened part of subgrade will be set in the pond or river along the road if using regular slope ratio,which will result in adding treatment difficulty and occupation cost.Taking Yangbei Highway reconstruction project in Tianjin for example,to avoid occupying river channel and to save investment,the steep slope added with geogrid has been adopted to make smaller & steeper sloop ratio for the first time in Tianjin.It hasn't appeared any problems and has arrived at the design requirements totally for 10 years.