嘉绍大桥承台超大体积混凝土无冷却水管温控技术研究  

Technical Research on Temperature Control of Mass Concrete Without Coolling Water Pipe of Jiashao Bridge Pile Cap

作　　者：罗超云[1] 李志生[1] 周立[1] 

机构地区：[1]广东省长大公路工程有限公司,广州市511430

出　　处：《公路》2012年第7期101-106,共6页Highway

摘　　要：嘉绍大桥处于海洋环境,承台为深埋式,对混凝土耐久性要求高。主桥单个承台C30混凝土方量近8 000m3。通过对承台大体积混凝土配合比优化、原材料控制、浇筑过程控制及混凝土养护等方面进行详细分析和总结,并通过实时的温度监测数据分析,达到了海洋环境下高性能超大体积混凝土在取消冷却水管的条件下保证温控质量的目标。The Jiashao Bridge is located in the marine enviroment,which employed the form of deep-embedded pile cap.It requires highly durable concrete.The quantity of C30 concrete for one pile cap on the main bridge is approximately 8 000 cubic meter.This paper will give detailed analysis and summary in terms of optimization of mix design of mass concrete,control of raw material,supervision of casting process and concrete curing.It also reached the objective of temperature control for mass concrete in the marine environment with the absence of the coolling water pipe by adopting the real time alayisis of temperature inspection data.

关 键 词：嘉绍大桥 承台 高性能超大体积混凝土 取消冷却水管 温控 

分 类 号：U445.559[建筑科学—桥梁与隧道工程]