改进型低应变法检测既有公路桥梁桩基完整性的数值分析  

Numerical Analysis on the Improved Low Strain Method to Detect Integrity of Existing Highway Bridge Piles

作　　者：孙晓立 鲁昌河 

机构地区：[1]广东华路交通科技有限公司,广州510420

出　　处：《广东公路交通》2014年第2期17-19,共3页Guangdong Highway Communications

基　　金：广东省交通运输厅科技项目(编号:2009-02-012)

摘　　要：与新建公路桥梁桩基检测相比,由于实际条件的限制,常规低应变法无法有效检测既有公路桩基的完整性。提出了改进型低应变法,通过合理设置传感器位置,有效避免承台对信号传输的干扰。数值分析结果表明:改进型低应变法可以较好地检测既有公路桩基的完整性,具有较好的工程应用前景。Compared with the new highway bridge pile testing, due to practical limitations, conventional low strain methods cannot effectively detect integrity of operating highway bridge pile. This paper presents an improved low-strain method, by a reasonable set of sensor position, effectively avoid interference of beating platform on signal transmission. Numerical results show that： the improved low-strain method can better detect the integrity of the existing highway pile, with good engineering applications.

关 键 词：改进型低应变法 既有公路 桩基 完整性 

分 类 号：U446.3[建筑科学—桥梁与隧道工程]