조립재료 동적물성 산정을 위한 대형삼축압축시험장비 구축 및 검증Development and Verification of Large Triaxial Testing System for Dynamic Properties of Granular Materials

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Coarse granular material is used as important fill material in most of large embankments such as railway, road, dam and so on. Therefore, the accurate design parameters of the coarse granular material are necessarily required in design and construction. The behavior of the coarse granular material was not well understood because of the lack of large testing equipment capable of coarse granular material. A large triaxial testing system was developed in this research, capable of large specimens of 500 mm, 300 mm and 150 mm in diameter. In the new large triaxial testing system, the load cell is installed inside the triaxial cell and axial displacement is measured locally on a specimen in order to improve control and measurement in small strain level. Urethane specimens of 300 mm and 50 mm in diameter were prepared. The large triaxial tests were performed on the 300 mm diameter urethane specimens while RC/TS and impact echo tests on the 50 mm diameter urethane specimens to verify this testing system. In this verification test results, we could ascertain the reasonable test results of the KRRI large triaxial testing system.
Publisher
한국지반공학회
Issue Date
2010-12
Language
Korean
Citation

한국지반공학회논문집, v.26, no.12, pp.5 - 17

ISSN
1229-2427
URI
http://hdl.handle.net/10203/103368
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