Dynamic Load Testing
Dynamic Load Testing (DLT) is a quick method to evaluate the bearing capacity of a pile for loads similar to the design load. It can be used for prefabricated piles, cast-in-place concrete piles and steel piles. DLT is considerably faster than static tests, and at a fraction of the cost.
To apply a load, an impact ram or a heavy block (drop hammer) is dropped onto the prepared pile head. The generated compression wave travels down the pile and reflects upwards. This reflected wave contains information about the shaft friction, toe resistance and pile defects. The measured signals are processed and automatically stored by the Profound PDA/ DLT monitoring system. The data can be easily retrieved for further review, graphical presentations or reporting.
The complete PDA/DLT package makes it possible to carry out PDA or DLT tests. In case you want to determine pile (ultimate) capacity and load displacement behaviour we advise to include the program DLTWAVE for signal matching. |