铁道标准设计2018，Vol.62Issue(3)：18-22,5.DOI:10.13238/j.issn.1004-2954.201704170007
CRTSⅠ型板式无砟轨道先导段施工控制要点分析
Key Controlling Points in Construction of CRTSⅠSlab Ballastless Track Leading Segment
摘要
Abstract
Based on the construction of CRTSⅠ slab ballastless track leading segment, the key four aspects in construction controlling are summarized, including concrete base and convex platform construction,track slab laying,CA mortar grouting and convex resining. The results show that,with such key processes as re-measuring by different people, accurate lofting, accurate and firm template positioning and assembly without leakage,the construction accuracy of concrete base and convex platform can be improved; with such protection measures as rubber gasket/ring protection, square wooden guidance and simultaneous stress of fine adjustment device,the quality of the track slab is improved; the disturbance effect of CA mortar construction on the state of fine adjusted track slab is reduced by determining the grouting end of CA mortar with slab floating amount and installing pressure slab device at the inlet;by adjusting the amount of water to control the fluidity of CA mortar near the upper limit,the gaps at the four corners and at the high side of the curve section can be reduced.关键词
CRTSⅠ型板式无砟轨道/先导段/CA砂浆/施工/控制要点Key words
CRTS Ⅰ slab ballastless track/Leading segment/CA mortar/Construction/Key controlling points分类
交通工程引用本文复制引用
王涛,刘鑫,李洪刚,李海燕,邵丕彦..CRTSⅠ型板式无砟轨道先导段施工控制要点分析[J].铁道标准设计,2018,62(3):18-22,5.基金项目
国家自然科学基金(51408610) （51408610）
中国铁路总公司重大课题(2013G008-A-1) （2013G008-A-1）
