【摘要】 分析了桩在静荷载作用下的性态以及桩土系统的动刚度，介绍了机械阻抗法的基本原理。和静荷载试验相结合，并引入静动对比系数，动测法对有效地检测桩基承载力和综合评价桩身质量都是切实可行的，并在工程实例中得到验证。更多还原

【Abstract】 In this paper,the pile′s performance under static load and the dynamic stiffness of pilesoil system are analyzed,and the fundamental principle of mechanical impedance method is presented.By combining with static load test and introducing statictodynamic stiffness ratio,the vibrating test method proves to be practical in engineering examples for predicting pile′s bearing capacity effectively and evaluating pile′s quality comprehensively.更多还原