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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.

GRL Engineers use the Shaft Area Profile Evaluator (SHAPE) to determine drilled excavation area and verticality prior to concrete pour. With remote testing capabilities, verticality assessments can be made quickly from any location.

The Ohio Office of GRL Engineers provides pile and drilled shaft testing services and analyses in Ohio, Michigan, Kentucky, West Virginia, Western New York*, Western Pennsylvania, and Ontario.

The Southwest Florida International Airport in Fort Myers Florida underwent a $1.1 Billion expansion in the second phase of the airport’s reconstruction project. The airport expansion was an effort to accommodate an expected growth in passenger traffic, and was led by the Lee County Port Authority. The first phase of the project was a $331 million expansion on the airport terminal. The second phase of this project looks to accommodate 10,000-15,000 travelers daily. GRL Engineers provided integrity testing on the auger cast in place piles which would be the foundation of the new structures.

The YWCA of Toledo wanted to add 11,000+ sf of usable space by installing a foundation through the existing basement swimming pool to support two new floors. Due to low clearance restrictions within the building structure, micropiles were used in the initial foundation design. The specialty contractor realized potential cost savings by utilizing helical piles for the foundation and provided a redesign. GRL Engineers used a dynamic load testing system, known as APPLE to confirm the helical pile capacity.

The Illinois office of GRL Engineers provided various testing services for major highway, I-69. Dynamic Load Testing with CAPWAP Analyses was utilized to monitor pile driving during installation. Static Load Testing was implemented on test piles to assess pile capacities, and integrity methods such as Crosshole Sonic Logging, Thermal Integrity Profiling, and Low Strain Integrity Testing were utilized to assess drilled shaft foundations.

Establishing a comprehensive understanding of the soil and foundation was pertinent to the construction of the new Corvallis Van Buren Bridge. GRL Engineers were hired to analyze the foundation’s capacity using Bi-Directional Static Load Testing services. Additionally, Drilled Shaft Verticality was assessed prior to concrete installation. Thermal Integrity Profiling was utilized to monitor concrete curing and identify potential anomalies. Crosshole Sonic Logging was utilized when a thermal wire did not record data.

This program utilized a variety of testing methods. Static Load Testing was performed as well as Dynamic Load Testing using an APPLE system. Thermal Integrity Profiling and Low Strain Integrity Testing services were provided to assess concrete. CAPWAP Analyses were utilized to review capacity.