南京南站网架高空不同步顶升就位技术

Not Synchronized Jacking Technology of Nanjing South Station Grid

京沪高铁南京南站屋盖网架面积为90 337 m^2,总重8113t。施工时采取分段滑移就位的方法,共有9个滑移单元,最重单元达1260 t,共设置4条滑移轨道。滑移单元沿滑移轨道滑移到位后高于设计标高,采取分轴线不同步顶升就位技术将其顶升就位。

The area of Nanjing South Station Grid of Beijing-Shanghai High-speed Railway is 90337m2, total weight is 8 113 t. We took segmentation sliding method to construct it. There are nine slipping units, of which the heaviest unit weights 1260 t, and there are four slipping tracks. When slipping unit slips to the right place along the tracks, it is higher than designed elevation, so takes not synchronized jacking technology to jack the unit to the designed elevation.