Evaluation methods for the "deformation characteristics and stability" of rock mass structures: deformation anisotropy and simple shear.
Essential evaluations in pre-construction surveys, seismic design, and maintenance management of rock mass structures.
【Deformation Anisotropy】 "Method for identifying the orthotropic elastic properties of rock masses through uniaxial testing" - Can identify three principal axes + 9 parameters (not possible with conventional techniques) - Significantly fewer tests required (3 cylindrical specimens) - Applicable to prismatic specimens as well - Low cost, high precision 【Simple Shear】 "Simple shear testing of rock prismatic specimens using torsion" - The only testing method available in the country - Clarifies the deformation characteristics of rocks during earthquakes - Obtains data necessary for seismic design - Evaluation of repeated "shear" - Traffic loads from vehicles and trains - Foundations of offshore wind power affected by wave action
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This technology is a research outcome from Saitama University. We hope to collaborate with companies for practical application through joint research and development. If you have any requests for product development in collaboration with university technology, please feel free to contact us.
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(Expected Applications) - Evaluation of rock mass characteristics - Foundation construction - Seismic design - Maintenance management (Patent Information) Patent Application No. 2021-113748 Method for identifying orthotropic elastic properties of rocks Patent Application No. 2022-002046 Material testing device and material testing method for friction-reducing materials used in the construction of underground structures
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