Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dynamically and Statically Measured Small Strain Stiffness of Dense Toyoura Sand
Abstract Small strain stiffness of dense Toyoura sand was investigated by performing triaxial compression tests using large scale apparatus. The specimens were rectangular prismatic with dimensions of 50 cm high and 23.5 cm times 23.5 cm in cross-section. To measure the vertical stress σ1, a load cell is located just above the top cap inside the triaxial cell in order to eliminate the effects of piston friction. The vertical strain ε1 was measured not only externally but also locally with three pairs of vertical local deformation transducers (LDTs). Three tests were conducted using air-dried Toyoura sand (Dmax = 0.35 mm, D50 = 0.23 mm, Uc = 1.80, emax = 0.966, emin = 0.600 and Gs = 2.635) as the test material. The specimens were prepared by employing air pluviation method and keeping dry densities within the range of 1.62 – 1.63 g/cm3. Dynamic and static Young’s moduli were evaluated by wave velocity measurement and by conducting small unloading/reloading cycles, respectively.
Dynamically and Statically Measured Small Strain Stiffness of Dense Toyoura Sand
Abstract Small strain stiffness of dense Toyoura sand was investigated by performing triaxial compression tests using large scale apparatus. The specimens were rectangular prismatic with dimensions of 50 cm high and 23.5 cm times 23.5 cm in cross-section. To measure the vertical stress σ1, a load cell is located just above the top cap inside the triaxial cell in order to eliminate the effects of piston friction. The vertical strain ε1 was measured not only externally but also locally with three pairs of vertical local deformation transducers (LDTs). Three tests were conducted using air-dried Toyoura sand (Dmax = 0.35 mm, D50 = 0.23 mm, Uc = 1.80, emax = 0.966, emin = 0.600 and Gs = 2.635) as the test material. The specimens were prepared by employing air pluviation method and keeping dry densities within the range of 1.62 – 1.63 g/cm3. Dynamic and static Young’s moduli were evaluated by wave velocity measurement and by conducting small unloading/reloading cycles, respectively.
Dynamically and Statically Measured Small Strain Stiffness of Dense Toyoura Sand
Maqbool, Sajjad (Autor:in) / Sato, Takeshi (Autor:in) / Koseki, Junichi (Autor:in)
01.01.2007
10 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Compression Wave , Predominant Frequency , Vertical Strain , Compression Wave Velocity , Toyoura Sand Physics , Soft and Granular Matter, Complex Fluids and Microfluidics , Continuum Mechanics and Mechanics of Materials , Building Materials , Geoengineering, Foundations, Hydraulics , Numerical and Computational Physics
Dynamically and Statically Measured Small Strain Stiffness of Dense Toyoura Sand
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