Custom Engineered Scientific Drilling Tools for IDRAS Offer New Geotechnical Drilling Applications
When developing the custom core drilling equipment for the scientific drilling IDRAS project that enables quality core drilling services in water-saturated soils while leaving the water in situ, it was clear the new technology would also offer benefits in geotechnical drilling applications. When designing, engineering and fabricating custom equipment, DOSECC engineers always seek to extend the extend its capability beyond the immediate apparent demands of the project to expand study capabilities across other disciples as well.
For example, when designing custom equipment to drill at any remote location, our team does not always have data to verify exactly how hard a rock is anticipated to meet the needs of the research, so we fabricate the equipment to be able to drill through harder materials and collect core from more consolidated clays than anticipated. In the case of IDRAS, it will likely be primarily sands or organic sediments, and may not require penetration of anything harder than clay material, yet the DOSECC team must factor in the uncertainty. In addition, there are other geotechnical drilling applications for this tool that may require the equipment be prepared for harder soils. As a result, the team has prepared the equipment for much harder soils and rock as part of the IDRAS project.
Accurately Measuring Soil Bearing Capacity with Geotechnical Drilling
When geotechnical engineers are tasked with determining the property of the soils which will support a new structure, the tool originally developed for IDRAS now may allow those researchers to better evaluate the saturation level of the sands they encounter. With sand material, the soil bearing capacity fluctuates widely depending on the water saturation. The sand alone may have a bearing capacity that is compromised by 2 or 3 times due to the water saturation.
Currently, geotechnical engineers use what call an SPT or CPT technology and then are left with making inferences as to how water affects the soil bearing-conditions. The geotechnical drilling tool DOSECC has custom-developed for the IDRAS project may give them more of a direct approach to more readily make accurate assessments.
For more information on geotechnical drilling capabilities, including custom design, engineering, and fabrication of new drilling technologies, please contact us.