双块式无砟轨道冬季施工技术分析
Construction Technology of Double-block Ballastless Track in Winter
罗雨森1
作者信息
- 1. 中铁十一局集团第四工程有限公司,湖北 武汉 430070
- 折叠
摘要
目前,中国高铁飞速发展,工程质量和效率要求不断提高,无砟轨道作为高铁建设的节点工程受工期影响往往需要冬季施工.混凝土保温及养护会直接影响混凝土强度等实体质量,是无砟轨道冬季施工需要面临的主要问题.传统冬施采用覆盖棉被保温的方式,养护效果较差,早期强度提升较慢,严重制约施工工效.双块式无砟轨道冬季施工技术通过搭设暖棚、蒸汽养护、薄膜保湿、棉被保温、塑料布锁水、沙袋防风等一整套措施,保证了无砟轨道冬季施工质量和效率.
Abstract
At present,the rapid development of China's high-speed rail,continuously improve project quality and efficiency requirements,no frantic jumble orbit as the node of high-speed rail construction project is affected by the requirement of time limit for a project is often the need for preservation and maintenance of concrete in winter construction will directly affect the concrete strength and other physical quality,is a fran-tic jumble orbit of the main problems in the winter construction need to adopt traditional winter cover the way heat preservation quilt,curing effect is poorer,early strength increase slower,restricted construction efficiency double block without a frantic jumble rail set-up greenhouses steam curing winter construction technology by membrane wet quilt insulation plastic water lock A complete set of measures,such as sandbag windbreak,can ensure the construction quality and construction efficiency of ballastless track in winter.
关键词
无砟轨道/冬季施工/质量/工效Key words
Ballastless track/Winter construction/Quality/Work efficiency引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据