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钢刃角超前支护是一种新型既有线防护体系,基本原理是顶进断面实施网格化,化整为零,从而达到既便于施工,又有利于行车安全的目的。结合乌准线乌北至小黄山段平交道口改立交工程,介绍钢刃角超前支护的工作机理、优缺点、稳定性计算及线路加固、反拉系统设置等情况,对于不宜使用施工便梁施工(或纵横抬梁)的道岔区、其他线路防护方式投资较大的站场,电气化铁路,高路基地段等,钢刃角超前支护均有较好的适应性。
Steel blade angle ahead of support is a new type of existing line protection system, the basic principle is the top section of the implementation of the grid, 整整 to zero, so as to achieve both construction, but also conducive to driving safety purposes. Combining the Wu’erzhuang to Xiaohuangshan section of Wuzhuguang crossing, the working principle, advantages and disadvantages, stability calculation, line reinforcement and anti-pull system setting are introduced. It is not suitable for the construction of the beam Construction (or vertical and horizontal beam) turnout area, other lines of defense investment in larger stations, electrified railway, high embankment sections, advanced steel blade angle support has better adaptability.