摘要
在高原高寒、富水地层修建隧道,是综合技术较难的一大难题,冻融对隧道的影响,一直困扰着广大的隧道施工人员.文章以国道569曼德拉至大通公路宁缠隧道进口施工为背景,介绍了高原高寒地区隧道冬季寒冷条件下的保温施工技术,着重阐述了隧道防排水、混凝土冬季施工保温以及通过蒸汽升温(一种专利技术)等保温技术,有效确保了高原高寒条件下隧道施工的质量,可为高原高寒隧道冬季施工保温提供借鉴.
It is a complicated problem to construct tunnels in water—rich strata of cold plateau region,the impact of freezing and thawing on the tunnel,has been puzzling the majority of the tunnel construction personnel.Taking the entrance construction of Ningchan Tunnel on Mandala—Datong Highway of the National Road 569 as the background,the paper introduced the insulation technology of the tunnel under the cold winter conditions in the alpine region,elaborated the insulation technologies of tunnel waterproof and drainage,concrete construction in winter and heat preservation by steam heating(a patented technology),which effectively ensured the quality of tunnel construction under high altitude and cold conditions.It could provide a reference for heat protecting of tunnel construction in cold plateau region.
作者
董跃锋
Dong Yuefeng(China Railways 16th Bureau Group 1th Engineering Co.Ltd.,Beijing 101300,China)
出处
《铁道建筑技术》
2018年第A01期201-204,共4页
Railway Construction Technology
基金
中铁十六局集团科技资助(2016-01c).
关键词
高原高寒
预防病害
冬季施工
保温技术
cold plateau region
prevention of disease
winter construction
insulation technology
