Pile Load Test – Pile Driving Analyzer Test (PDA Test)
PDA Test, Pile Load Test – Pile Driving Analyzer Test is computer analysis to process data from dynamic test for each pilling by Case Method equation. There is many various parameter in the pile from the effect of transferred energy. Case Method equation is based on 1 dimension Wave Theory, the ratio of diameter (width side) with long side of pile is 1 : 10.
PDA Test Procedure
The Advantages of Pile Load Test – Pile Driving Analyzer Test (PDA Test) :
- Value of Ultimate capacity directly shown at the monitor screen.
- The Pile, which is impossible to be tested by conventional loading can be done easily.
- Know the value of ultimate capacity of pile during the driving process.
Pile Load Test – Pile Driving Analyzer Test (PDA Test) Tools :
- PDA with PAK model and PAL model
- Accelerometer. To count accelerating and integrity of pile to be speed (V).
- Strain tranducer. To count strain of pile ? PDA will analyze it to be force (F)
- Conection Cable
- Hand Bore Machine (to put an accelerometer dan strain tranducer on the pile)
- Hand emery wheel (making smooth the surface of pile to put anchor and installing accelerometer and strain tranducer)
- Tool kit
- Crawel Crane (to lift and put the load)
- Load Box
Pile Load Test – Pile Driving Analyzer Test (PDA Test) Preparations :
- Definite points which will tested ( 2 points)
- Definite some parameters to pile which will tested.
- Make 2 number of holes to put strain transducer at the both side of pile with spacing 1.5 – 2 diameter. And make a hole to put accelerometer, 2.5” from strain transducer.
- Accelerometer and strain transducer at the both side of pile connected with the cable to the PDA computer.
- Accelerometer and strain transducer calibrating.
- Filling pile data in PDA.
Pile Load Test – PDA Test Procedure :
- Setting up the cylinder with Crawler crane at definite point.
- Balancing the cylinder flens as a base top of pile.
- Dropping load hammer from height elevated between 0.5, 1, 2, and 3 meters
- Read the result of PDA tool in computer every each punch until get an ultimate average value for a pile.