摘要
道床板裂缝是CRTSⅠ型双块式无砟轨道施工质量控制的难点,通过对裂缝产生原因的理论分析,指出混凝土收缩、温差和不当施工工艺等是产生裂缝的主要原因,提出原材料质量控制、优化混凝土配合比和施工工艺等方面控制裂缝的技术措施。
The control of cracks in the slab is key issue in the construction of CRTSⅠdouble block ballastless track. The theoretical analysis indicates that the shrinkage of concrete, temperature difference and the improper construction process are the main causes of cracks. Specific technical countermeasures are put forward in terms of quality control of raw materials, optimization of concrete mixture ratio and improvement of construction processes.
出处
《铁道标准设计》
北大核心
2015年第4期16-18,23,共4页
Railway Standard Design
关键词
无砟道床
裂缝
成因分析
控制措施
Ballastless track bed
Crack
Cause analysis
Countermeasures
