Videos/Animation

Bi-Directional Static Load Testing (BDSLT) is a method of evaluating deep foundation performance by applying load from within the foundation element using a GRL-Cell jack assembly. The test simultaneously mobilizes shaft resistance above the jack assembly and shaft and toe resistance below it, providing detailed insight into foundation behavior under load.

Obtain critical foundation performance data quickly and efficiently with GRL’s Dynamic Load Testing services. Using the APPLE® Load Testing System, GRL engineers generate the forces needed to assess mobilized geotechnical resistance and evaluate deep foundation performance. Available with modular weights ranging from 1 to 80 tons, APPLE systems provide a flexible alternative to traditional static load testing and can be configured to meet a wide range of project requirements.

GRL Engineers offer end-to-end project support and coordination with expertise in advanced analysis of TIP data. From initial project planning to installation, monitoring, analysis and reporting of collected TIP data, as well as providing consultation if TIP results indicate further evaluation is necessary, the GRL Advantage is carried from start to finish.

This Pennsylvania Office of GRL Engineers provides pile and drilled shaft testing services and analyses in Eastern Pennsylvania, Eastern New York*, New Jersey, Eastern Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont, Delaware, Maryland, District of Columbia, and Northern Virginia.

Dynamic Load Testing is a fast, reliable and cost effective method of evaluating foundation bearing capacity. GRL can perform Dynamic Load Testing on driven piles, drilled shafts, auger-cast piles, micropiles, helical piles, and other cast in place foundations.

GRL Engineers provide static load testing services throughout the US. This animation covers the three main types of load testing that GRL performs: compressive static load testing, lateral load testing and tensile load testing.

The Bi-Directional Static Load Test comes in multiple configurations to provide load capacity assessments. The load cell assembly is assembled into the shaft’s rebar cage and is then cast into concrete. Hydraulic pressure presses bi-directionally against the concrete until it breaks, providing information on the soil resistance from the applied load.

APPLE Systems are used by GRL Engineers to provide Dynamic Load Testing services for drilled shafts, helical piles, augered-cast-in-place piles and other deep foundations.

APPLE Systems are used by GRL Engineers to provide Dynamic Load Testing services for drilled shafts, helical piles, augered-cast-in-place piles and other deep foundations.

During a bi-directional static load test, the deep foundation element is instrumented to provide information about soil and foundation response to load. GRL cells can be installed in drilled shafts, augercast piles, drilled displacement piles and barrettes.

Static Load Tests provide pertinent information regarding load capacity, movement, and elasticity. GRL Engineers offers axial compressive testing, axial tension testing, and lateral load testing.

In this animation, see how GRL Engineers determine shaft base cleanliness in drilled excavations.