Videos/Animation
Dynamic Testing – PDA Services
GRL Engineers perform dynamic testing for driven piles using a Pile Driving Analyzer (PDA) and simulate static load tests with CAPWAP software to compare compression and tension stresses.
How Engineers Monitor Pile Driving with the PDA
High strain dynamic load tests are performed by installing accelerometers and strain sensors on a pile and using a Pile Driving Analyzer (PDA) to monitor pile driving and hammer impact.
Assessing Drilled Shaft Integrity with Crosshole Sonic Logging
Concrete quality is tested by GRL Engineers using crosshole sonic logging (CSL) methods.
Integrity Testing – Crosshole Sonic Logging (CSL)
GRL Engineers perform csl testing to evaluate the integrity and relative concrete quality of drilled shafts. The test is performed after concrete has cured to determine potential anomalies.
Crosshole Sonic Method (CSL)
GRL Engineers assess the concrete integrity of a drilled shaft using crosshole sonic (CSL) method. After the concrete has been poured, the probes are lowered into the shaft, and pulled simultaneously to scan the length of the shaft.
Non-Destructive, Low Strain Integrity Testing for Deep Foundations
Low strain integrity testing is a non-destructive integrity method performed using the Pile Integrity Tester (PIT).
How Engineers Perform Low Strain Integrity Tests with PIT systems
The low strain tests, also known as PIT tests, are performed after foundation installation and curing, and require minimal pile preparation.
Drilled Shaft Verticality Assessment with the SHAPE
GRL Engineers assess drilled shaft verticality and shaft of shaft using a SHAPE device.
Drilled Shaft Radius, Volume and Verticality Services with SHAPE
GRL Engineers, Inc., offer SHaft Area Profile Evaluator (SHAPE) services to measure and report the characteristics of a wet pour, drilled shaft excavation.
GRL Engineers Drilled Shaft Cleanliness Evaluations with SQUID Animation
In this animation, see how GRL Engineers determine shaft base cleanliness in drilled excavations.
Evaluating Base Cleanliness of Drilled Shafts using SQUID Testing Device
SQUID is used to measure force and displacement at the bottom of a drilled hole, to quantitatively assess the drilled shaft cleanliness.
How Engineers Measure Shaft Bottom Cleanliness with the SQUID
Using the Shaft Quantitative Inspection Device (SQUID), GRL Engineers measure debris thickness located at the bottom of a drilled shaft.