桥梁桩低应变反射波法检测及分析探讨  

LOW-STRAIN REFLECTION WAVE DETECTION OF BRIDGE PILE AND THE RESULT ANALYSIS

作　　者：周满兵[1] 刘东甲[1] 许峰 卢志堂[1] 

机构地区：[1]合肥工业大学资源与环境工程学院,安徽合肥230009 [2]汕头公路工程质量监督站,广东汕头515021

出　　处：《安徽地质》2010年第2期138-142,共5页Geology of Anhui

基　　金：广东省交通厅科技项目(2009-02-020)

摘　　要：低应变反射波法检测技术作为一种成熟的桩身完整性检测方法,正在被广泛的应用到工程实践中。本文结合铜陵市沿新路互通立交工程桩低应变检测实例,简要介绍了低应变反射波法的基本原理,假定桩为一维线弹性直杆,建立了桩-土动力模型,结合现场测试数据对几个典型实测波形进行了分析,并且通过拟合计算,分析了桩的完整性。Low-strain reflection wave detection is being widely applied to engineering practices as a mature method for checking the intactness of a pile.This paper based on an example from an interconnection overpass at Yanxin Road,Tongling City,briefly introduced the basic principle of low-strain reflection wave method assuming that the pile is a one-dimension elastic straight bar,on which pile-soil dynamic model is established,analysed several typical measured waveforms using spot testing data and then discussed the integrity of the pile through fitting calculation.

关 键 词：低应变动测 桥梁桩基 计算分析 曲线拟合 

分 类 号：U433.15[交通运输工程—道路与铁道工程] U446[建筑科学—桥梁与隧道工程]