TY - JOUR AU - Yuhei Kurimoto, AU - Seiji Kobayashi, AU - Takashi Tsunemoto, AU - Feng Zhang, PY - 2016/10/26 Y2 - 2024/03/29 TI - UNIAXIAL COMPRESSION TEST OF UNSATURATED MASADO UNDER CONSTANT DEGREE OF SATURATION CONDITION AND ITS MODELING JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 12 IS - 31 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/1089 SP - 83-87 AB - <p>Soils in surface ground are usually unsaturated. Proper modeling of the characteristics of<br>unsaturated soil is therefore absolutely needed. However, due to its complicated mechanical behavior,<br>establishing a constitutive model for unsaturated soil is far more difficult than that for saturated soil. In this<br>research, uniaxial compression tests were firstly conducted on unsaturated Masado (Decomposed granite)<br>under constant degree of saturation condition to investigate the mechanical behavior of the soil at different<br>degree of saturation. Then, based on the test data, the performances of previously proposed elastoplastic<br>constitutive model for unsaturated soil were checked carefully, taking the Bishop-type skeleton stress and the<br>degree of saturation as the state variables. It is found that the mechanical behavior of the unsaturated Masado<br>can be properly described by the proposed elastoplastic constitutive model that takes the skeleton stress and<br>the degree of saturation as the state variables.<br>Keywords: Unsaturated Soil, Degree of Saturation, Constitutive Model, Uniaxial Compression Test</p> ER -