A novel suction-controlled true triaxial apparatus for unsaturated soils

2008 ◽  
pp. 83-88 ◽  
Author(s):  
A Puppala ◽  
L Hoyos ◽  
A Laikram
Keyword(s):  
Unsaturated Soils ◽  
True Triaxial ◽  
Triaxial Apparatus ◽  
True Triaxial Apparatus

A New True Triaxial Apparatus

Géotechnique ◽  
1969 ◽  
Vol 19 (2) ◽  
pp. 307-309 ◽  
Author(s):  
E. C. Hambly
Keyword(s):  
True Triaxial ◽  
Triaxial Apparatus ◽  
True Triaxial Apparatus

A Novel True Triaxial Apparatus to Study the Geomechanical and Fluid Flow Aspects of Energy Exploitations in Geological Formations

2016 ◽  
Vol 49 (12) ◽  
pp. 4647-4659 ◽  
Author(s):  
Minghui Li ◽  
Guangzhi Yin ◽  
Jiang Xu ◽  
Wenpu Li ◽  
Zhenlong Song ◽  
...  
Keyword(s):  
Fluid Flow ◽  
True Triaxial ◽  
Triaxial Apparatus ◽  
True Triaxial Apparatus ◽  
Geological Formations

Damping-ratio measurements by the spectral-ratio method

2006 ◽  
Vol 43 (11) ◽  
pp. 1180-1194 ◽  
Author(s):  
Yu-Hsing Wang ◽  
Wai Man Yan ◽  
Kai Fung Lo
Keyword(s):  
Damping Ratio ◽  
Near Field ◽  
Spectral Ratio ◽  
Ratio Method ◽  
Bender Elements ◽  
True Triaxial ◽  
Triaxial Apparatus ◽  
True Triaxial Apparatus ◽  
Spectral Ratio Method ◽  
Near Field Effect

In this paper, bender elements are used as sensors to measure the damping ratio of soil by the spectral-ratio method. The results of numerical and physical experiments suggest that adequate measurement precision can be achieved by reducing the two types of inherent biases arising from (i) the near-field effect and (ii) the different transfer functions of the two receiver bender elements. The first bias can be avoided by setting sensors to r1/λ ≥ 2.0 and r1/r2 ≥ 2.0, where r1 and r2 are the distances between the source and the first and second receivers, respectively; and λ is the wavelength. The second bias can be minimized by modifying the original spectral-ratio method to accommodate the self-healing technique. The damping ratios, measured by this modified method, obtained from the experiment conducted in a tailor-made, true-triaxial apparatus are very similar to those obtained from resonant column tests under the same state of stress.Key words: bender element, damping ratio, spectral-ratio method, near-field effect, true-triaxial apparatus.

Simulation of Pressuremeter Shearing Mode by True Triaxial Apparatus

2007 ◽  
Vol 30 (2) ◽  
pp. 100453
Author(s):  
LD Suits ◽  
TC Sheahan ◽  
TH Seah ◽  
D Shrestha
Keyword(s):  
True Triaxial ◽  
Triaxial Apparatus ◽  
True Triaxial Apparatus

A New Suction-Controlled True Triaxial Apparatus for Unsaturated Soil Testing

2020 ◽  
Vol 44 (4) ◽  
pp. 20190015
Author(s):  
Fang Zheng ◽  
Shengjun Shao ◽  
Yongxin Wang ◽  
Shuai Shao
Keyword(s):  
Unsaturated Soil ◽  
Soil Testing ◽  
True Triaxial ◽  
Triaxial Apparatus ◽  
True Triaxial Apparatus
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