摘要
根据青藏铁路重难点控制工程三岔河特大桥的施工情况 ,采用了我国高寒铁路的最新科研成果———低温早强耐久高性能混凝土的施工技术和利用了我国成功研制的DZ外加剂 ,不仅能使搅拌出的砼强度满足设计要求 ,而且能确保混凝土灌注 2 4h内防止被冻等 ,取得了冬季施工的巨大成功 ,填补了国内铁路桥梁施工技术的一项空白 。
Based on the construction status of Qinghai-Tibet Railway, the updated achievements in scientific research for our railway in frigid zones have been adopted in the key and difficult engineering, San Cha He Specially Long Span Bridge. The construction technology in cryogenic, early strength and corrosion-resisting high performance concrete with the application of our successfully developed DZ applied agent not only makes the strength of mixed concrete meet the designed requirement, but also prevents the poured concrete from freezing within 24 hours. The great accomplishment for winter construction has filled in a gap in domestic construction technology of railway bridges as well as created a miracle in the world history of railway bridges in frigid zones.
出处
《广西交通科技》
2003年第2期16-19,共4页
Guangxi Communication Science & Technology
