优化铁路支挡工程完善绿色通道设计的研究

研究目的:山区铁路不可避免会出现大量路堑高边坡,开挖工程中为保证高边坡的稳定,会采用悬臂式支挡类结构进行预加固。悬臂式抗滑桩支挡结构的实施必然会造成支挡工程的增大,视野绿化景观的影响。为了优化支挡工程,完善建立铁路的绿色通道的理念,对于悬臂式预加固支挡措施与边坡平台埋入式预加固支挡措施进行各方面比较,分析出更适应于路风景脆弱区的高边坡预加固支挡模式。研究结论:通过对悬臂式支挡与边坡平台埋入式支挡在结构设计、力学分析、工程投资、景观要求等几方面进行对比分析后,得出在路堑顶地形相对平缓的高边坡加固工程中,埋入式预加固桩相比悬臂式预加固桩可以节省工程投资50%、达到完全绿化边坡的效果。

Research on Optimization of Railway Retaining Engineering and Improvement of Design of Green Corridors

Research purposes: It is inevitable that the mountain railway has a large number of cutting high slope.The cantilever-type retaining structure is used for reinforcement in order to ensure the stability of the slope during the excavation.Using the cantilever-type anti-slide pile retaining structure will inevitably result in increase of the retaining works and impacting the visual green landscape.In order to optimize the the retaining engineering,the concept of green railway corridor should be set up and improved.The comparison is made between using the cantilever-type retaining structure for pre-reinforcement and the slope platform submerged retaining works in all aspects to get the suitable retaining mode for reinforcing high slope in the fragile area for good landscape. Research conclusions:From the comparison and analysis of the cantilever-type retaining structure and the slope platform submerged retaining works in areas of the structure design,mechanical analysis,project investment and landscape requirements,it is concluded compared with the cantilever-type retaining structure,using the slope platform submerged retaining works can save the project investment by 50% and the effect of greening the slope can be achieved.