摘要
哈大客运专线采用CRTS-I型板式无砟轨道,无砟轨道的轨道板为预制的后张双向预应力结构,具有抗冻性能和抗裂性能好的特点,很好的满足了严寒地区对轨道板的性能和施工要求。主要介绍哈大客运专线CRTS-I型板式轨道板的结构特点、制作工艺和生产过程中混凝土的关键控制技术。
The slab of CRTS-I ballastiess track on Hada pasaer,ger line was designed to be post tensioned biaxial streas construction, which complied with the requirements of construction and characteristic in heavy frost region for the good resistance to the freezing and cracking, in this paper, the construction features and production process of slab were introduced, and the quality control of concrete was specially presented.
出处
《建材世界》
2010年第1期29-32,共4页
The World of Building Materials
