临空条件下铁路顺层边坡的加固设计

通过总结渝怀铁路、株六铁路、内昆铁路等铁路顺层边坡处理工点的成功经验及失败教训,论述可能产生顺层滑动的几种情况以及设计应注意的问题。首次提出顺层情况下二面临空及三面临空的概念,应特别注意二面临空及三面临空情况下更容易发生顺层滑动。论述顺层边坡开挖的影响范围问题,分析总结相应的加固处理措施。

Consolidation Design of Railway Bedding Slope Subject to Empty Space

This paper summarizes the successes and failures in bedding slope treatment on Chongqing-Huaihua Railway, Zhuzhou-Liupanshui Railway, Neijiang-Kunming and other railway lines and discusses the possible bedding sliding and issues to be addressed in the design. The concept is put forward the first time of the bedding facing two and three empty spaces,where the bedding is more likely to slide. The effect of bedding slope excavation and corresponding consolidation measures are also analyzed.