反射波法在桩身完整性检测中的应用  

Application of Reflection Method in Pile Integrality Detection

作　　者：李斌[1] 

机构地区：[1]中国煤炭地质总局地球物理勘探研究院,河北涿州072750

出　　处：《中国煤炭地质》2009年第A02期118-119,共2页Coal Geology of China

摘　　要：反射波法已成为混凝土桩成桩质量检测的一种必要手段,在实际检测工作中,检测人员在做好前期工作的同时,应依据地质资料、成桩资料、施工记录进行初试以确定传感器、激振方法等各种参数的选择。传感器的选择应考虑桩型及桩长,采样频率应依据时域分析精度和频域分析精度要求确定,而信号放大及滤波处理则以采样信号不失真为宜。The reflection method is already an essential means in concrete piling quality detection. In practices, detectors should carry out initial test to determine various selections of sensor and excitation mode parameters according to geological data, piling data and operation records simultaneously with prophase works. The selection of sensors should pay regard to pile type and length, sampling frequency determination should consider time domain and frequency domain analytical precisions, while signal amplification and filtering process, so as to be satisfied for no distortion of sampled signals.

关 键 词：混凝土桩 传感器 激振方式 采样频率 滤波处理 反射波法 

分 类 号：TU473[建筑科学—结构工程]