摘要
低应变反射波法目前在基桩完整性检测中应用广泛，但应用该方法检测尚存在测试信息量不足、缺陷特征反映不全面等问题。针对这些问题，提出了一种多信号基桩完整性检测系统，即多点激励、多点拾振，应用以多次覆盖原理为中心的数据处理方法。实践表明，多信号检测能够有效地抑制干扰，提高信噪比和测试精度，从向增加了判断桩身质量的准确性和可靠度，显示出良好的应用前景。并且该系统可以推广应用到结构的完整性检测中去，效果会更好。
The low-strain reflected stress wave test method is widely used in detecting the structural integrity and inner quality of foundation piles. However, insufficient and incomplete data obtained in practice make it difficult to accurately detect faults and cracks in foundation piles. Innovated multi-signal piles integrity detecting system, i.e., multiple points pulsing and multiple points receiving to process the obtained data on basis of on multiple superposition method, is proposed. It shows that the multi-signal foundation piles integrity detecting system can effectively restrain the signal interference and elevate the signal-to-noise （SNR） and testing precision of foundation piles through engineering practice, and thus it can improve the accuracy and reliability of foundation pile integrity tests. In addition, this method can also be applied to various types of structures and materials as expected.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2005年第A01期5262-5266,共5页
Chinese Journal of Rock Mechanics and Engineering
关键词
基桩工程
完整性检测
多信号测试
多次覆盖处理方法
pile engineering
integrity testing, multi-signal detecting： multiple superposition data processing method
