The stress - wave reflection method exist limitation in testing the quality of foundation pile. The direction of defects in pile body exerts a tremendous influence on testing results.
应力波反射法在检测基桩质量的应用上存在着方法上的局限，且桩身缺陷的方向性对检测结果影响极大。
It not only makes the theories of pile vibration more practical, but also provides a new theoretical support for anti-seismic design of pile foundation and dynamic testing of pile.
这不仅使得桩基振动理论更为完善，也为桩基抗震、防震设计及桩基动态检测提供了全新的理论支持。
In this paper, based on the highway bridge pile foundation construction, the key issues needing attention are analyzed, and the main technology of the current pile testing is summarized.
本文就公路桥梁柱基施工，分析了桩基施工中应注意的关键事项，并概述了目前桩基检测的主要技术。
According to the theory of grey system, the different time steps model of GM (1 1) in the pile foundation engineering is established, and a testing method of this model is provided.
根据灰色系统理论，首次建立了时间非等步长的桩基工程GM(1 1)模型，提出了时间非等步长的桩基工程GM(1 1)模型的检验方法。
This not only makes the theory of pile vibration more perfect, but also provides a totally new theoretical support for pile foundation seismic design and pile dynamic testing.
这不仅使桩基振动理论更为完善，也为桩基抗震、防震设计以及桩基动测提供了全新的理论支持。
The results of plate loading test and low strain dynamic testing show that the quality of CFG pile composite foundation is good and subgrade bearing capacity has been improved successfully.
现场载荷试验及反射波法低应变动力检测试验表明，CFG桩桩身完整性很好，复合地基的承载力提高显著，证明该工程的CFG桩复合地基设计及施工是成功的。
In the paper, the structure and the feature of USBI and the development method of USB software and hardware system are studied. A pile foundation nondestructive testing system with USBI is designed.
研究了USB接口的结构、特点和US B软硬件系统的开发方法，设计了基于USB接口的桩基无损检测系统。
With the implementation of dynamic testing of pile around the world, theory of stress wave has been applied in many fields in the quality detection of building foundation piles.
随着桩基动测技术在各国的推广，应力波理论已应用于桩基质量检测的多个领域。
With the implementation of dynamic testing of pile around the world, theory of stress wave has been applied in many fields in the quality detection of building foundation piles.
随着桩基动测技术在各国的推广，应力波理论已应用于桩基质量检测的多个领域。
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