Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Direct and Indirect Local Deformations of Sand in Undrained Cyclic Triaxial Tests by Image Analysis Technique
Abstract A series of undrained cyclic triaxial liquefaction tests were conducted to observe directly and indirectly the local deformations of sand specimen through a transparent membrane. Black-colored silica sand, mixed in white-colored silica sand, was used for the direct evaluation. Black-colored dots, used for observing the local deformations indirectly, were pasted on membrane with a constant interval of 5 mm. Digital photographs were taken in front of the triaxial cell to evaluate the deformations of sand particles patterns and dots by Particle image Velocimetry method. The results indicated that image analysis is an efficient method for direct and indirect measurements of local deformation. Comparison of direct and indirect evaluations revealed that relative movement between sand particles pattern and an adjacent dot on the membrane had a leap when excess pore water pressure ratio reached unity.
Direct and Indirect Local Deformations of Sand in Undrained Cyclic Triaxial Tests by Image Analysis Technique
Abstract A series of undrained cyclic triaxial liquefaction tests were conducted to observe directly and indirectly the local deformations of sand specimen through a transparent membrane. Black-colored silica sand, mixed in white-colored silica sand, was used for the direct evaluation. Black-colored dots, used for observing the local deformations indirectly, were pasted on membrane with a constant interval of 5 mm. Digital photographs were taken in front of the triaxial cell to evaluate the deformations of sand particles patterns and dots by Particle image Velocimetry method. The results indicated that image analysis is an efficient method for direct and indirect measurements of local deformation. Comparison of direct and indirect evaluations revealed that relative movement between sand particles pattern and an adjacent dot on the membrane had a leap when excess pore water pressure ratio reached unity.
Direct and Indirect Local Deformations of Sand in Undrained Cyclic Triaxial Tests by Image Analysis Technique
Zhao, Chuang (Autor:in) / Koseki, Junichi (Autor:in) / Miyashita, Yukika (Autor:in)
01.01.2017
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
| British Library Online Contents | 2018
Numerical simulation of undrained cyclic triaxial tests of Nanjing flake-shaped fine sand
| British Library Online Contents | 2009
UNDRAINED AND DRAINED TRIAXIAL TESTS OF FIBER-REINFORCED SAND
| British Library Conference Proceedings | 2008
Undrained Cyclic and Monotonic Triaxial Behaviour of Saturated Loose Sand
| Online Contents | 1994