低应变反射波法检测桩基结构完整性的应用

Application of the method of reflecting wave to test integrity of pile

桩基检测是一项非常重要的工作,其不可预见影响因素非常复杂.例如,检测桩的桩头处理、传感器的安装、激振频率的选择情况以及桩周土阻力等,都对检测数据产生一定的影响,这就要求检测人员在检测过程中,分析克服外界不利影响因素,寻求最佳检测手段,追求最准确的判断.文章通过对低应变反射波法在桩基检测中的应用分析,针对现场数据采集及检测波形判读中一些值得注意的问题,作了初步的探讨.

Pile's test is an all-important work. Forecasting influencial factors is extraordinary complex, for example, the test data may be affected by the disposal of the test pile' s top, the accelerometer attachment, and the hammer' s frequency, etc. So, it requires the test personnel during testing and analysing to overcome the disadvantageous factors of the outside in the course of test, and to seek best test method and exact estimate. The paper discusses a number of noticeable problems ,on local data collection and test wave analysis by applying the method of reflecting wave.