拼宽桥梁桥台锥坡拆除防护施工技术  

Construction Technology for Demolition of Conical Slope of Widened Bridge Abutment

作　　者：周乃圆 赵文飞 欧阳 郭伟 张涛 Zhou Nai-yuan;Zhao Wen-fei;Ou Yang;Guo Wei;Zhang Tao

机构地区：[1]浙江交工集团股份有限公司,杭州310051

出　　处：《建筑技术开发》2021年第9期75-76,共2页Building Technology Development

摘　　要：在改扩建高速工程中对桥梁工程进行改扩建时,需要将原有桥梁桥台拆除并重建,具体地说就是要将原有桥梁的锥坡及台后部分的路基进行拆除,在此过程中破坏路基稳定性的概率较大,此问题会造成台后路基的垮塌问题并且会破坏路面结构,增加出现结构安全事故以及交通安全事故的概率。阐述了在施工过程中采取合适的防护处理方案,如钢板桩防护等,有利于工程施工的开展,又能充分保证道路结构安全和交通安全。In the reconstruction and expansion of the bridge project,the original bridge abutment needs to be dismantled and rebuilt.Specifically,the conical slope of the original bridge and the subgrade behind the abutment should be demolished.In this process,there is a high probability of subgrade stability being damaged.This problem will cause the collapse of the subgrade and damage of the pavement structure,increasing the probability of structural safety accidents and traffic safety accidents.the appropriate protection measures taken during the construction process are elaborated,such as steel sheet pile protection,which is conducive to construction of the project,and can fully ensure the safety of road structures and traffic.

关 键 词：拼宽桥梁 锥坡拆除 支护 

分 类 号：U445.6[建筑科学—桥梁与隧道工程]