Business Details
50 Years
experience
Expert Deep Foundation Testing Services
GRL Engineers is the largest professional engineering firm dedicated to specialized deep foundation testing, analysis, and consulting services. Founded in 1976, we pioneered dynamic pile testing through the Case Method and continue to lead the industry with innovations like the Pile Driving Analyzer (PDA) and Thermal Integrity Profiling. Our expertise spans 50 years, offering solutions for drilled shafts, driven piles, and specialty foundations across North America, the Caribbean, and global offshore projects. We combine advanced technologies such as Crosshole Sonic Logging and Bi-Directional Static Load Testing with a commitment to research and education, ensuring cost-effective, high-quality results. Our team of Advanced Level-certified engineers delivers responsive service for small-scale evaluations and large-scale infrastructure projects.With headquarters in Cleveland, Ohio, and offices nationwide, we provide 24/7 support for construction control, load testing, and integrity assessments. Our work on landmark projects like the Gordie Howe Bridge and Raritan River Bridge replacement demonstrates our ability to tackle complex engineering challenges. We maintain industry leadership through continuous innovation, adherence to ASTM standards, and partnerships in offshore wind and megaproject developments. Our mission remains focused on improving foundation solutions, optimizing construction timelines, and reducing costs while upholding the highest standards of safety and reliability.
Services
Dynamic Pile Testing
Integrity Evaluation
Load Testing
Thermal Profiling
Bi-Directional Testing
Details
- Year established: 1976
Highlights and features
- We have 50 years of experience in deep foundation engineering.
- Our engineers hold Advanced Level certifications in dynamic testing.
- We pioneered the Case Method and PDA technology.
- We operate in 15+ countries with global project experience.
- Our services comply with ASTM D8169 standards.
What people say
Technical expertise
Global project experience
Innovative testing methods
Reliable results
Responsive service
Services
Dynamic Pile Testing
Our Dynamic Pile Testing evaluates foundation capacity using advanced PDA technology. This method measures pile stresses during installation, providing real-time data for construction control. We apply this to driven piles, drilled shafts, and specialty foundations, ensuring compliance with design specifications while optimizing installation efficiency.
Thermal Integrity Profiling
Thermal Integrity Profiling assesses concrete quality in drilled shafts through heat signature analysis. Our TIP technology identifies anomalies in real-time during curing. This non-destructive method ensures structural integrity for bridge foundations, high-rise buildings, and offshore platforms while meeting ACI mass concrete standards.
Bi-Directional Load Testing
Bi-Directional Static Load Testing with GRL-Cells measures shaft and toe resistance separately. This ASTM D8169-compliant method provides precise load distribution data for drilled shafts and CFA piles. We use it for critical infrastructure projects requiring capacity validation without traditional reaction systems.
Crosshole Sonic Logging
Crosshole Sonic Logging evaluates drilled shaft quality using acoustic wave transmission. Our CSL method detects defects through multiple tube configurations. This technique ensures compliance with design specifications for bridge piers, building foundations, and marine structures requiring high-load capacity.
Remote Testing Services
Remote Testing Services enable real-time monitoring through SiteLink technology. We perform SHAPE verticality assessments and SQUID base cleanliness evaluations from remote locations. This reduces mobilization costs while maintaining data accuracy for offshore and international projects.
Questions
What deep foundation testing methods do you offer?
We provide dynamic pile testing, thermal integrity profiling, crosshole sonic logging, bi-directional load testing, and remote monitoring solutions for all foundation types.
Do you work on international projects?
Yes, we operate in 15+ countries with offshore capabilities and regional offices across the United States.
How do you ensure testing accuracy?
Our engineers use ASTM-standard methods, maintain Advanced Level certifications, and employ proprietary technologies like GRL-Cells and SiteLink monitoring systems.
Can you test existing foundations?
Yes, we evaluate unknown foundations using low-strain integrity testing and gamma-gamma logging for condition assessment.
What industries do you serve?
We work with transportation, energy, marine, and commercial construction sectors on bridges, offshore wind farms, and infrastructure megaprojects.
How quickly can you mobilize for projects?
Our regional offices enable 24/7 mobilization with minimal notice for emergency assessments or scheduled testing programs.
Videos
