Videos/Animation

Concrete quality is tested by GRL Engineers using crosshole sonic logging (CSL) methods.

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.

Low strain integrity testing is a non-destructive integrity method performed using the Pile Integrity Tester (PIT).

GRL’s APPLE dynamic load testing systems can be configured for a wide range of weights and delivered to projects anywhere in the continental USA.

The low strain tests, also known as PIT tests, are performed after foundation installation and curing, and require minimal pile preparation.

GRL Engineers assess drilled shaft verticality and shaft of shaft using a SHAPE device.

SQUID is used to measure force and displacement at the bottom of a drilled hole, to quantitatively assess the drilled shaft cleanliness.

Using the Shaft Quantitative Inspection Device (SQUID), GRL Engineers measure debris thickness located at the bottom of a drilled shaft.

Static load tests are performed to assess pile movement responses to applied load which help validate foundation designs for construction projects.

Using the Offshore Wave version of the wave equation analysis of piles software program GRLWEAP, GRL evaluates if the proposed driving system is suitable for the project and anticipates installation conditions that may require special precautions.

GRL performs static load testing to meet the need of project designs for construction quality assurance.

GRL Engineers perform GRLWEAP Wave Equation Analysis to find the relationship between bearing capacity, pile stress and blow count, known as the “bearing graph.”