PDA是（Pile Driving Analysis）的缩写，大应变检测（也叫高应变检测）的目的与作用是测出桩的桩身完整性和承载力； PIT是（Pile Integrity Testing）的缩写， 小应变检测 桩身结构完整性；

Pile Dynamic Analyzer（PDA）试验是一种用于评估桩基质的工程试验方法。 它是通过在桩顶施加冲击负荷，然后监测桩体的响应来进行的。 PDA试验可用于确定桩的动态特性，如自振频率、阻尼比和动力荷载传递函数。

The Pile Driving Analyzer® (PDA) system is the most widely employed system for Dynamic Load Testing and Pile Driving Monitoring in the world. High Strain Dynamic Load Tests, also called PDA tests, assess the capacity of several piles in a single day.

2018年9月25日 · High strain dynamic pile testing is performed using Pile Driving Analyzer (PDA) together with strain Sensor and accelerometers. PDA is used to verify the mobilized capacity of all types of drilled and driven piles.

2016年3月24日 · Dynamic Load Testing or PDA testing, is a fast, reliable and cost effective method of evaluating foundation bearing capacity. SSG can perform Dynamic Load Testing on driven piles, drilled shafts, auger-cast piles, micropiles, helical …

The High Strain Dynamic Tests are performed using the Pile Driving Analyzer (PDA) PAK, PAL-K or PAX Model manufactured by Pile Dynamics Inc. (POI), USA, which utilizes the Case Method~ to obtain quick quantitative results at the site.

PDA Testing utilizes the Pile Driving Analyzer@ (PDA) and is based on the theory of Stress Wave Propagation on Piles (CASE Method). Force (strain) and velocity (acceleration) measurements taken near the top of a pile during impact provide the necessary information to determine:

高应变测试（pda）是一种对单桩竖向抗压承载力和桩身完整性进行判定的检测方法，实验时用重锤冲击桩顶，实测力和速度曲线，通过波动理论对其进行分析。由于涉及到精密计算，我们在pda测试前，需要输入一些参数如桩身截面尺寸、重密度等，在测试后case法 ...

2015年12月4日 · PDF | PDA is a commonly used test which shows exactly what is happening as a pile is being driven. It is cheap and quick to set up and shows a vast... | Find, read and cite all the research you...

The document provides a method statement for conducting a Pile Driving Analyzer (PDA) test. It outlines: 1) The introduction and purpose of PDA testing for evaluating deep foundation piles. 2) The testing apparatus which includes a PDA model, strain transducers, accelerometers, and connection cables.