Enables high-precision ground response analysis! Introducing high-quality sand and gravel sampling techniques.
"Original Position Freezing Sampling" is a technique for collecting undisturbed samples from sandy and gravelly soil layers. Sampling is conducted in a frozen state through core drilling from the frozen ground. Furthermore, by handling the samples in a frozen state from the time of sampling until just before the soil tests, we can provide high-quality samples with minimal disturbance effects. This technique is applicable to non-cohesive soils such as sandy soils, gravelly soils, and rock materials. [Ground Conditions and Sampling Conditions] ■ Ground with high saturation necessary for freezing ■ Ground with low fine particle content ■ Ground that can achieve moderate confining pressure ■ Freezing occurs in a state where pore water can escape outward from the freezing pipe ■ Sampling is conducted from areas away from the freezing pipe *For more details, please refer to the PDF document or feel free to contact us.
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**Examples and Contributions** ■ Contribution to Total Cost Reduction: High-rise buildings, bridge foundations, joint trenches, etc. (Reduction of liquefaction countermeasure construction costs and foundation construction costs through detailed examination of the strength and deformation characteristics of sand layers and gravel layers) ■ Contribution to Improved Safety and Reliability: Nuclear power plants, other important structures, Kyushu Shinkansen, etc. (Realization of highly reliable bearing capacity design through detailed examination of liquefaction strength of sand layers and high-precision seismic design) ■ Contribution to Seismic Design Guidelines: Architectural foundation structural design guidelines, Road Bridge Design Specifications V Seismic Design Edition, Railway Structure Design Standards for Seismic Design *For more details, please refer to the PDF materials or feel free to contact us.*
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【Application】 ■ Suitable for non-cohesive ground such as sandy soil, gravelly soil, and rock materials. *For more details, please refer to the PDF document or feel free to contact us.
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Since our establishment, our company has adhered to the corporate philosophy of "providing accurate and high-quality ground information," offering consistent technology from ground to foundation to building for our customers. In addition, with a broad perspective on the future of society, we are committed to the refinement and development of technology, the sustainable provision of high-quality information, and the training of engineers who support these efforts, contributing to the reduction of our customers' risks and the improvement of their outcomes. Please feel free to contact us if you have any requests.