长江流域新建铁路工程水土流失防治技术

On the Preventative and Treating Techniques Against Water and Soil Erosion of the Newly-Built Railway Projects in the Yangtze River Valley

铁路工程建设和生产过程中对原地表进行的扰动、破坏,使得原地貌的土壤受到破坏、侵蚀和运移,并产生大量的水土流失,引起生态环境恶化。以新建武汉至咸宁城际铁路工程为例,结合工程施工区布局,将该项目划分为路基防治区、站场防治区、桥涵防治区、隧道防治区、弃土场防治区、施工便道区和施工生产生活防治区7个水土流失防治分区,并从不同角度提出了水土流失防治的原则和相应的防治措施。研究成果对其他铁路工程水土保持研究具有较好的参考与指导意义。

The construction and production of railway projects may disturb and undermine the original ground surface^ causing the soil of the original ground to be undermined, eroded, or moved,which may result in serious water loss and soil erosion, thus worsening the ecological environment. With the newly-built project of the Wuhan-Xianning Inter-municipal Railway as a practi-cal example,and also taking account of the layout of the construction district of the project,the whole project is divided into al-together seven water-loss-and-soil-erosion-preventing-and-controlling areas：the sub-grade control area,the yard control area,the bridge and culvert preventative area,the tunnel control area,the spoil preventative area,the area for make -shift roads,and the construction, production and living control area. Meanwhile,the principle of water-loss-and-soil-erosion-prevention and the corresponding preventative measures are put forward respectively from the angles of the engineering measures,the vegetation measures and the temporary measures. The fruits of our research may well serve as a useful reference for the study of water and soil conservation in other railway projects.