【摘要】 根据波动理论探讨了弹性波在砼桩中的传播衰减规律及反射特征，提出了判断桩基质量的有关理论依据，并结合工程实例应用弹性波反射法讨论了时域、频域分析法的基本原理及存在问题．更多还原

【Abstract】 Based on the theory,the propagation and attenuation laws and reflection characteristics of elastic wave in concrete piles are studied and the theoretical criterions for judging pile quality are proposed.By elastic wave reflection method, the basic principles of analytical method in time domain and frequency domain and problems existed in the method are discussed combined with some engineering examples.更多还原