Triaxial creep tests and back analysis of time-dependent behavior of Siah Bisheh cavern by 3-Dimensional Distinct Element Method

2011 ◽  
Vol 26 (1) ◽  
pp. 155-162 ◽  
Author(s):  
S. Nadimi ◽  
K. Shahriar ◽  
M. Sharifzadeh ◽  
P. Moarefvand
Keyword(s):  
Distinct Element ◽  
Back Analysis ◽  
Distinct Element Method ◽  
Time Dependent ◽  
Creep Tests ◽  
3 Dimensional ◽  
Dependent Behavior ◽  
Triaxial Creep ◽  
Triaxial Creep Tests ◽  
Element Method

Observed and calculated pore pressures and deformations induced by an earth balance shield

1993 ◽  
Vol 30 (3) ◽  
pp. 476-490 ◽  
Author(s):  
X. Yi ◽  
R. Kerry Rowe ◽  
K.M. Lee
Keyword(s):  
Finite Element ◽  
Numerical Technique ◽  
Field Measurements ◽  
Time Dependent ◽  
Creep Tests ◽  
Viscoplastic Model ◽  
Pore Pressures ◽  
Triaxial Creep ◽  
Consolidation Analysis ◽  
Triaxial Creep Tests

The observed pore pressures and deformations induced by an earth balance shield used to construct the Furongjiang sewer tunnel in soft saturated ground in Shanghai, China, are briefly described. A numerical technique for predicting these pore pressures and deformations is outlined. This approach adopts a coupled viscoplastic-consolidation analysis to describe the time-dependent deformations and strain-hardening behaviour of the soil using parameters obtained from triaxial creep tests. A comparison is then made between numerical results and the results of field measurements, and it is shown that there is encouraging agreement between the calculated and observed response. Key words : tunnelling, finite element, settlements, viscoplastic model, consolidation, field measurement.

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