This is the injection testing center (within the Geotechnical Research Institute).
This is the injection testing center.
Aiming for high-quality reliability, we have established a dedicated injection testing center to support the main construction work.
The ground improvement, liquefaction countermeasures, and seismic reinforcement using the permanent grout injection method as part of the main construction work require a lasting improvement effect. Therefore, preliminary mixing tests are crucial. In 2007, we established the main injection testing center, which has testing research capabilities, data accumulation functions, and consulting functions. At this center, we conduct preliminary mixing tests using soil samples taken from the site, and by adding insights gained from years of joint research between industry and academia to the data obtained, we provide a higher reliability quality to construction companies, clients, and other stakeholders. Currently, ground improvement work using the permanent grout injection method is on the rise, with over 1,200 construction achievements and injection volumes exceeding 600 million liters. The Ground Injection Development Organization, established in 2003, is one of the largest corporate organizations in the field of ground improvement using chemical injection methods, continuously conducting research and development. As a result, we are working to promote integrated technology that combines practical injection materials and methods as the permanent grout main injection method. By cooperating and collaborating with the Ground Injection Development Organization at the main injection testing center, we aim to promote the permanent grout injection method and improve technology, accurately responding to everyone's needs.
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basic information
Facilities and Test Contents 【Sample Preparation】 - Samples are prepared using appropriate methods such as confined pressure permeation and vacuum permeation, depending on the purpose of the tests. 【Permeation Testing Methods】 - In addition to one-dimensional permeation tests using long molds, two-dimensional and three-dimensional permeation tests are conducted to verify the permeation and solidification properties of the chemical solution. 【Physical Tests】 - Soil particle density test - Granulometry test - Maximum and minimum density tests, etc. 【Chemical Tests】 - pH test - Silica content test - Calcium content test, etc. 【Mechanical Tests】 - Uniaxial compression test - Triaxial compression test - Triaxial repeated compression test 【Others】 - Accelerated tests - Compatibility tests, etc. *Some tests are conducted by external organizations.
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Applications/Examples of results
Purpose of Improvement for Test Implementation and Structures ■ Purpose of Improvement - Liquefaction countermeasures - General reinforcement - Seismic reinforcement - Restoration reinforcement ■ Structures - Revetted slopes, quay walls - Foundations - Underground structures - Roads, railways - Airports *For specific inquiries about tests, please feel free to contact us through the inquiry form on our website.*
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Company information
Since its establishment in 1969, Kyoka Soil Engineering has embraced the three keywords of Creativity, Challenge, and Collaboration, under the corporate philosophy of "Continuity is Strength." We have been committed to technological innovation and the creation of new markets in the field of ground reinforcement through collaborative research with academia and joint research across different industries. Our strengths lie in our ability to plan and develop cutting-edge technologies in the field of ground improvement and reinforcement, as well as our capability to communicate these technologies to the market through our ground injection development mechanisms. We are determined to advance our efforts towards social contribution through the various intellectual properties we possess.