低应变法检测既有建筑地基基础的研究

Research on low strain method to detect existing building foundation

随着城市化进程的不断加快,近年来我国建筑行业在发展过程中,出于对建筑质量的考虑,需要在建筑工程施工完成后选择相应的方法对地基基础进行检测,其中常见的检测方法之一就是低应变法。低应变法利用低能量的瞬态对地基的顶部进行振动,根据振动的速度时间曲线和导纳曲线分析地基是否完整。

With the continuous acceleration of the urbanization process,in recent years,due to the consideration of building quality,it is necessary to select the corresponding method to detect the foundation after the construction project.One of the detection methods is the low strain method.The low-strain method is to vibrate the top of the foundation by using a low-energy transient.According to the vibration velocity-time curve and the admittance curve,it can be analyzed whether the foundation is complete.