山岭重丘区城市道路弃方设计优化方案研究

Study of Optimizing Design Scheme of Urban Road Abandoned Soil in Mountainous and Hilly Areas

山岭重丘区城市道路建设将产生大量弃方。若弃方处置不当,不但会增加项目投资,还会造成水土流失及环境破坏等负面影响。以某山岭重丘区城市道路工程设计为例,通过采用优化路线平面线型、纵断面线型、横断面布置以及桥改路等技术措施,在保障技术和经济可行性、必要性基础上,达到减少弃方、增加土方利用的目的,最大限度地减少道路工程建设对自然环境的影响,为类似的山岭重丘区城市道路建设提供参考。

Urban road construction in mountainous areas will produce a large number of abandoned soil.If the abandoned soil are not properly disposed,it will not only increase project investment,but also cause negative effects such as soil erosion and environmental damage.Taking the urban road engineering design in a mountainous area as an example,this paper adopts technical measures such as optimizing the plane line type,longitudinal line type and Cross section arrangement,and changing the bridge into roadbed.On the basis of ensuring the technical and economic feasibility and necessity,it achieves the purpose of reducing the abandoned soil and increasing the use of earthwork,and minimizes the impact of road engineering construction on the natural environment,providing a reference for the urban road construction in similar mountainous and heavy hilly areas.