文官屯大桥连续梁挂篮近距离跨越既有铁路接触网防电措施设计研究

Research on Antielectricity Measures of Traveling Carriages for Continuous Girder to Overpass the Existing Railway Catenary of Wenguantun Bridge in Short Range

以工程实例为依据,通过对连续梁挂篮近距离跨越既有铁路接触网防电措施的方案选择,绝缘防护板的耐压计算,电极现场制作工艺、安装及实时监控测试等防电措施的设计研究,充分说明根据不同的绝缘防护要求,在较小的空间下既能满足现场施工要求,又能保证既有铁路的行车安全,且现场制作方便,施工速度快的防电措施设计方法,在类似的铁路工程施工中具有广泛的推广意义。

Based on case study and research on the antielectricity measures choosing of traveling carriages for continuous girder to overpass the existing railway catenary in short range,compressive strength calculation of the insulation protection board,electrode fabrication on site,and on installation and testing the real-time monitoring of the antielectrucity,this paper revealed that,according to different insulation protection requirements,site operation can be carried out while the railway traffic safety can be guaranteed.This antielectricity measure is also easy to be fabricated on site,and it is significant in popularization and application in similar railroad engineering construction.