Videos/Animation
How Engineers Perform Dynamic Load Tests with Drop Weight Systems
Using APPLE drop weight systems, GRL Engineers can perform high strain dynamic load tests on drilled shafts and driven piles.
Estimating Top-Load Movement and Base Resistance with Bi-Directional Static Load Testing
GRL Engineers offers bi-directional static load tests using a pressurized GRL-CELL.
How Engineers Use Bi-Directional Static Load Testing with Pressurized Cells on Drilled Shafts
GRL Engineers use the Bi-Directional Static Load Test on deep foundations to determine load capacity.
Safe and Economical Dynamic Pile Monitoring
GRL Engineers perform Dynamic Pile Monitoring to obtain and evaluate driving system performance, driving stresses, pile integrity, as well as the soil resistance magnitude and resistance distribution.
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.