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电力系统从美国引进的PDA仪和凯斯法波动方程软件,是目前国际上较为先进的一种动力试桩设备和方法。PDA仪包括桩分析仪、磁带记录仪、示波器、微处理机、纸带打印机、数字绘图仪、数字储存器、力和加速度传感器以及现场电信系统。PDA仪动力试桩可提供30多种动力试验成果,能在打桩过程中进行监测,改善打桩质量,并测定桩身应力,检验桩的质量,确定单桩承载力,主要功能有:
Power system PDA instrument and Case wave method software imported from the United States are currently more advanced in the world as a kind of power test equipment and methods. PDA instruments include pile analyzers, tape recorders, oscilloscopes, microprocessors, tape printers, digital plotters, digital storage, force and acceleration sensors, and on-site telecommunication systems. The PDA instrument power test pile can provide more than 30 kinds of dynamic test results, can monitor during the pile driving process, improve the pile driving quality, measure the pile stress, check the pile quality, and determine the bearing capacity of single pile. The main functions are: