In designing river-crossing pipelines with large spans,pipelines cannot rely solely on pier self-support,prompting designers to add steel trusses as support sections.In complex terrain,the challenges of large-span truss hoisting and large-diameter water pipeline hoisting are considerable.Taking the construction project of the Second Waterworks factory pipeline(eighth section)in Xixian New District,Xi'an City,Shaanxi Province as an example,a sliding installation technique for large-scale pipelines within high-altitude,river-crossing trusses is proposed to address the difficulties encountered in large-diameter,large-span water pipeline construction inside trusses.This technique involves setting sliding tracks within the truss,using BIM software for scenario simulation,and implementing a push-pull sliding installation method with a combination of permanent and temporary supports.This approach resolves the issue of one-time lifting and installation of pipelines following overall truss hoisting,ensuring construction quality and safety,improving construction efficiency,reducing the use of non-structural materials,and lowering construction costs.
关键词
复杂地形/大口径输水管道/跨河桁架/推拉滑行
Key words
complex terrain/large-diameter water supply pipeline/river-crossing truss/push-pull sliding
维普
万方数据