过江通道盾构式管片生产工艺及质量控制  

Production Technic and Quality Control of Shield Segments for the Cross-river Tunnel

作　　者：檀秋芬[1] 潘春生 

机构地区：[1]芜湖职业技术学院建筑工程系,安徽芜湖241003 [2]中交二航局第四工程有限公司,安徽芜湖241006

出　　处：《北华大学学报（自然科学版）》2013年第3期367-372,共6页Journal of Beihua University（Natural Science）

摘　　要：结合南京纬三路过江通道工程N线工区C60混凝土盾构式管片生产过程,依据过江通道对管片质量的具体要求,对大直径过江隧道盾构式管片生产工艺和质量控制措施进行了研究与总结,明确提出钢筋骨架制作时钢筋切料误差及钢筋骨架成型精度,管片蒸养时间及升温、降温速率要求,管片混凝土浇筑条件与浇筑时入模板温度,钢筋混凝土管片成品水平拼装检验允许偏差值等,以期最大限度地提高管片的质量.Combined with the production of shield segments with C60 concrete in the working area Line N of the cross-river tunnel project on Nanjing Weisan Road,this thesis discusses and summarizes the production technic and quality control measures on large-diameter shield segments for cross-river tunnel,based on the specific requirement of segment quality for cross-river tunnel.This thesis also puts forward the deviation of reinforced cutting and the forming precision of steel skeleton,the requirement for segment steam curing time and the rate of warming and cooling,the pouring conditions and the template temperature of concrete segments,and the testing allowable deviation of the horizontal assembly of the concrete segments,hoping to improve the precision and quality of segments at utmost.

关 键 词：盾构管片 生产工艺 蒸汽养护 

分 类 号：TU528.06[建筑科学—建筑技术科学]