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深茂铁路跨新台高速钢桁梁采用在桥台后路基拼装,在主跨新台高速公路两侧设置临时支墩和滑道,一侧主墩设置拖拉平台,整体拖拉滑移就位。施工中采用大型有限元分析并模拟了拖拉滑移整个施工过程,研究了大吨位滑道支撑临时支墩、分段式滑道系统、大吨位同步纵向滑移系统和信息化实时监控监测等关键技术。
The new high-speed steel truss beam spanning the new high-speed railway of Shenzhen-Maucao Railway is assembled at the abutment subgrade. Temporary support piers and chutes are set on both sides of the main span Xintai Expressway. A dragging platform is set on the main pier on one side and the whole is dragged and slipped into place. Large-scale finite element analysis and simulation of the whole construction process of drag-and-slip are carried out in the construction. The key of temporary bollard with large tonnage supporting chute, sectional slide system, synchronous longitudinal slip system with large tonnages and real-time monitoring and monitoring of informatization are studied technology.