摘要
针对丰沙铁路K49+160～+890段边坡特征,进行边坡防护方案的比选;根据现场的地形特征,划分不同防护区域开展落石分析,得到了落石的最大速度、弹跳高度、冲击能量等主要参数和落石运动的轨迹。根据分析结果,对不同的防护区域,进行柔性防护的选型及布置,既保证了防护效果,也节约了防护造价,且对铁路的安全运行影响很小。
Against the characteristics of the slope between K49＋160~＋890 on Fengtai-Shacheng Railway,the scheme of slope protection is compared and selected.According to the terrain feature in the field,the protection areas are divided to carry out rockfall analysis,and then the maximum speed,bounce height,impact energy and other main parameters as well as the trace of rock falling are obtained.According to the analysis result,the flexible protection is selected and arranged in connection with different protection areas so that the protecting effect can be guaranteed,the cost can be saved,and the influence on safe operation of railway is little.
出处
《路基工程》
2012年第1期188-191,共4页
Subgrade Engineering
关键词
柔性防护
落石
既有线
边坡
flexible protection
rockfall
existing railway
slope
