Case

Studies

GRL Engineers offer a wide range of deep foundation testing and consulting services, nationwide. Most GRL Engineers have achieved Advanced Level or higher on both the PDCA/PDI Dynamic Measurement and Analysis Proficiency Test.

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Florida High Speed Rail

GRL Engineers provided Predriveability Analyses with GRLWEAP, Pile Driving Monitoring during installation and CAPWAP analysis services for various bridge structures on the western portion of the Florida High Speed Rail.
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Trinity River Railroad Bridge

To accommodate the Trinity River Railroad Bridge replacement, GRL provided Thermal Integrity Profiling and Crosshole Sonic Logging for a 120-inch O.D. shaft. APPLE High Strain Dynamic Load Testing was performed following concrete curing to assess capacity of the shaft.
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Ports of Indiana - Burns Harbor

GRL Engineers provided GRLWEAP Analysis prior to installation and Dynamic Load Testing services during construction of the new ship berths for the Burns Harbor. Further CAPWAP Analyses were performed to assess pile load capacity.
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Tampa Bay Desalination Facility
ACIP piles were utilized to update the Tampa Bay Desalination Plant foundation. APPLE Dynamic Load Testing with a 5-ton system was performed and CAPWAP Analysis determined shaft and toe resistance. Additionally Low Strain Integrity Testing was performed before and after the drop tests.
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Extensive Load Test Drilled Shaft Program with Integrity Assessments
A large jobsite in central Ohio utilized a robust test program to determine shaft design, capacity and integrity. A 1000-ton 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.
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Ports of Indiana - Burns Harbor
GRL Engineers provided GRLWEAP Analysis prior to installation and Dynamic Load Testing services during construction of the new ship berths for the Burns Harbor. Further CAPWAP Analyses were performed to assess pile load capacity.
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Florida High Speed Rail
GRL Engineers provided Predriveability Analyses with GRLWEAP, Pile Driving Monitoring during installation and CAPWAP analysis services for various bridge structures on the western portion of the Florida High Speed Rail.
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Trinity River Railroad Bridge
To accommodate the Trinity River Railroad Bridge replacement, GRL provided Thermal Integrity Profiling and Crosshole Sonic Logging for a 120-inch O.D. shaft. APPLE High Strain Dynamic Load Testing was performed following concrete curing to assess capacity of the shaft.
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West Virigina Shaft Bottom Cleanliness Specifications
The West Virigina Department of Highways (WVDOH) implemented a requirement to inspect drilled shaft bottom cleanliness. GRL Engineers provide Drilled Shaft Bottom Cleanliness Evaluations and have provided services to many projects in the "Mountain State".
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Central 70 Highway Project
GRL Engineers performed testing on the concrete integrity of many caissons for the Central 70 Project, including Crosshole Sonic Logging and Thermal Integrity Profiling. Over a duration of 2 years, 50 plus drilled caissons were tested.
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Offshore Wind Farms in New Jersey
GRL Engineers provided a variety of testing services for Offshore Wind Farms off the New Jersey Coastline, including SPT Energy Calibration, Pile Driving Monitoring with a PDA, CAPWAP Analysis, Wave Equation Analysis with GRLWEAP, Compressive Static Load Testing with embedded instrumentation and Lateral Static Load Testing using a ShapeArray. Select "Download" to read the full paper.
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Scotts Hill Water Tower in Wilmington, NC
The foundation for the Wilmington Water Tower specified Dynamic Load Testing and Low Strain Integrity Testing on production drilled shafts. Utilizing Low Strain Integrity Testing identified an impedance, and the load test in combination with a CAPWAP Analysis assessed the pile load capacity.
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NASA Vehicle Assembly Building
The largest single-story building in the world, the Vehicle Assembly Building at Kennedy Space Center, underwent structural upgrades to accomodate the Artemis missions returning to the moon. GRL Engineers provided Thermal Integrity Profiling services to assess pile integrity, APPLE High Strain Dynamic Load Testing services on augercast piles to determine load capacity, and CAPWAP analyses to simulate a static load test.
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Radius Dilworth Overlook in Charlotte
Thermal Integrity Profiling was used to take thermal measurements during concrete hydration on the overlook project in Charlotte, NC. GRL Engineers performed integrity testing on 14 production shafts for the high-rise foundation.
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Unionport Bridge Replacement
In Bronx, New York, the Unionport bridge underwent a replacement which consisted of 43 drilled shafts. GRL Engineers provided Crosshole Sonic Logging, Bi-Directional Static Load Testing, Thermal Integrity Profiling, as well as Low Strain Integrity Testing.
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Toombs County Bridge Replacement over the Altamaha River
GRL performed Drilled Shaft Verticality Assessment, Shaft Base Cleanliness Assessment, as well as Bi-Directional Static Load Testing (“BDSLT”) services. A multi-level jack assembly configuration increased the complexity of shaft installation requirements, load test execution, and test data analyses. Thermal Integrity Profiling was also utilized during concrete curing to measure thermal data every 15 minutes.
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Pensacola Bay Bridge
The U.S. 98 Pensacola Bay Bridge replacement project began in 2017 to address hurricane evacuation traffic needs. The replacement required PDA Testing on test piles and production piles. Data was assessed via CAPWAP® data analyses to provide simulated static load testing. Hurricane Sally interrupted construction in 2020, and potential damages to production piles were assessed using Low Strain Integrity Testing.
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I-77 Canton Bridge Structures
The large aquifer in Canton, OH presented multiple drilled shaft installation challenges on the I-77 mainline bridge structures. GRL Engineers were involved in mulitple phases of construction, providing a variety of testing services including Dynamic Load Testing with an APPLE drop weight system, CAPWAP® Analyses to simulate static load testing, Drilled Shaft Base Cleanliness Evaluations, Thermal Integrity Profiling, and Static Load Testing on CFA piles. The project was considered monumental as it was the Ohio DOT's first time utilizing Dynamic Load Testing on a CFA pile.
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Bridge Abutment and Boardwalk at TI' awh ah dees Park
Test piles for the bridge abutments underwent GRLWEAP Pile Driveability Analysis to assess if the proposed hammer would be able to achieve specified driving depths. GRL Engineers provided Pile Driving Monitoring on the abutments and utilized CAPWAP® Analyses to simulate static load testing. Additionally, the new boardwalks were tested with Static Compression Load Tests using a hydraulic jack.
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Central Florida Expressway SR 528 and SR 436 Interchange Reconfiguration
This $118 Million interchange reconfiguration was initiated to create a smoother, more efficient transition for heavy airport traffic flow on the Beachline Expressway. GRL Engineers provided GRLWEAP Wave Equation Analysis for pre-construction, the Pile Driving Analyzer (PDA) during pile construction, and CAPWAP Analysis after installation. The project was completed eight months ahead of schedule.
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El Dorado National Forest Bike Trail
GRL Engineers performed Dynamic Load Testing and CAPWAP Analysis on a less common pile type- fiberglass. The fiberglass piles were implemented on a bike trail at El Dorado National Forest.
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Rehabilitating the Van Wyck Expressway
GRL Engineers proposed Dynamic Load Testing on micropiles for the Van Wyck Expressway. The initial micropiles were damaged and Thermal Integrity Profiling was utilized to assess the integrity of the alternate piles. CAPWAP Analysis was also provided after testing to further evaluate static pile capacity.
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