冻土地区桥涵基础早期病害的防治  

Prevention and Treatment of Early Diseases of Bridge and Culvert Foundation in Frozen Earth Regions

作　　者：史超 李得森 

机构地区：[1]青海省湟源高速公路养护处,湟源812100 [2]青海威远路桥有限责任公司,西宁810008

出　　处：《青海交通科技》2015年第5期51-54,共4页Qinghai Transportation Science and Technology

摘　　要：结合共玉公路桥涵基础施工中的总结,从基坑开挖时的冻土防治措施,基底处理的措施预防冻土破坏,模板工程和防腐措施,负温混凝土配合比的优化和施工工艺控制的措施,负温混凝土的生产和施工中的措施,冻土地基和台背回填的防治措施等七个方面概述了冻土地区桥涵基础早期病害的防治。in this paper, combining with the construction of bridge and culvert foundation of Gonghe-Yushu highway, the prevention and treatment measures of early diseases of bridge and culvert foundation in frozen earth regions are clarified from the following 6 aspect： 1. Prevention and treatment measures of frozen earth during the excavation of foundation pit; 2. Foundation treatment measures ; 3. Templete engineering and anticorrosion meas- ures; 4. Optimization on mix proportion of negative temperature concrete and its process control measures; 5. Measures during the producing process and construction of negative temperature concrete ; 6. Measures of frozen earth foundation and back filling behind abutments.

关 键 词：道路工程 桥涵基础 冻土 病害防治 

分 类 号：U445.71[建筑科学—桥梁与隧道工程]