How can we help on your next project?
Often, the greatest risks associated with a new project are unknowns below the ground surface. Exploration of the subgrade through geotechnical drilling, in situ testing, and sample collection play a pivotal role in acquiring subsurface data for site assessment and engineering design. This data enables your company to collaborate with the design team to make informed decisions and effectively solve problems when it comes to evaluating and constructing your facility.
Contract drilling services are often the earliest site work performed for many large-scale construction projects. Drilling provides subsurface data used in the geotechnical design of the foundations for structures like bridges, skyscrapers, and industrial facilities. Our experienced employees and specialized drilling rigs collect highly specific soil samples and perform in situ testing at your project sites to evaluate soil composition and engineering parameters for construction.
Geotechnical Drilling
Geotechnical drilling involves assessing the physical properties and structural integrity of subsurface materials. It is crucial in the planning and design of infrastructure and facility projects, as it helps engineers understand soil behavior, foundation requirements, and the potential for subsurface hazards such as soft or hard soils, undocumented fills, and karst.
Cone Penetrometer Testing (CPT)
Cone Penetrometer Testing (CPT) is a supplemental geotechnical investigation method that uses an instrumented cone, which is hydraulically advanced into the ground at a controlled rate, to measure geotechnical properties of the soils and to delineate soil stratigraphy. The CPT cone can contain numerous instruments capable of measuring such properties as tip resistance (Qt), sleeve resistance (Fs), pore pressure (u), and shear wave velocities (Vs) to develop geotechnical engineering properties. Additionally, the soil behavior type (SBT) will be inferred from established relationships between tip resistance, sleeve friction, and pore pressure which can assist with soil classification. Because the CPT is advanced continuously to the termination depth of the test, strata interfaces and changes in soil properties can be more distinctly defined than with intermittent sampling normally conducted through drilling alone.