软土地基桥梁病害成因分析及加固技术研究  

Research on Causes of Diseases of Bridge on Soft Foundation and Reinforcement Technology

作　　者：王技[1] 钟海辉[1] 

机构地区：[1]中交第一公路勘察设计研究院有限公司,陕西西安710075

出　　处：《筑路机械与施工机械化》2014年第12期90-93,共4页Road Machinery & Construction Mechanization

摘　　要：针对软土地基的桥梁在施工完成后墩台出现开裂、支座产生剪切变形病害的情况,以大理至丽江段高速公路某桥的加固工程为依托,对软土地基桥梁墩台的受力特点、病害形成原因以及病害发展规律进行分析探讨,并提出多种加固设计方案。最终确保了工程的后续施工安全及运营安全,所总结的软土地基桥梁加固的设计经验可为类似工程提供借鉴。Aimed at the diseases of bridge built on soft foundation after construction such as cracks on the abutment and shear deformation on the support, the stress characteristics, causes of diseases and the developing rule of diseases were analyzed based on the reinforcement of a bridge on Dali-Lijiang Expressway, and several measures for reinforcement were proposed. The safety of later construction and operation of the bridge was guaranteed, and the successful experience provides reference for similar projects.

关 键 词：软土地基 桥台开裂 支座变形 加固设计 

分 类 号：U443.17[建筑科学—桥梁与隧道工程]