摘要
根据应力波在一维杆中传播的机理,利用关于应力波在不同界面和变截面状态下的反射与传播介质的关系,用反射系数与实测波幅进行定量计算,以此为依据结合基桩动刚度和导纳值进行桩身缺陷程度的判断。
Quantitative calculation has been done for the measured wave width resulted from pole vibration measuring according to the correlation of reflection and wave width weakening rate and calculation formulae on the basis of the analysis on the relationships between reflection, and energy dissipation of stress wave at different interface and variable cross 2 sections of the traveling of stress wave in one dimension pole in order to judge pile imperfection.
出处
《城市勘测》
2008年第4期150-153,共4页
Urban Geotechnical Investigation & Surveying
关键词
机械阻抗法
反射系数
透射系数
波阻抗
动刚度
Mechanical Impedance
Reflectance
Transmission
Wave Impedance
stiffness
