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采用工频涡流法与早强型防冻剂法相结合,在—25℃条件下施工了120米长的黑龙江省速滑馆C_(40)级预应力钢筋混凝土水平拉杆共28根,取得了良好的技术效果,所用技术参数可供相似工程冬期施工参考。
A total of 28 C_(40) prestressed concrete horizontal tie rods of the 120-meter-long Heilongjiang Provincial Speed Skating Center were constructed using the industrial-frequency vortex method combined with the early-strong antifreeze method and achieved good conditions. The technical effect and the technical parameters used can be used for the reference of similar projects in winter construction.