There are four main types of pile driving analyzers:
1. Pile driving analyzer (PDA): A PDA measures the force and velocity of the hammer and calculates the resistance of the pile. This data can be used to estimate the capacity of the pile and to monitor the performance of the pile during driving.
2. Sonic / sonic echo pile testing: This test uses low-frequency sound waves to identify the length of a pile and possible defects in the pile length. The data collected from this test can be used to assess the capacity of the pile.
3. Crosshole sonic logging (CSL): This test involves transmitting a sound wave between two or more tubes or boreholes cast in the concrete pile. This data can be used to evaluate the integrity of the concrete, and to identify any defects.
4. Thermal integrity profiling (TIP): TIP uses the heat generated by curing concrete to create a temperature profile of the pile cross-section. This data can be used to assess the integrity of the concrete, and to identify any voids, defects or weak spots.
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