Investigation of the dynamic behaviour of a storage tank with different foundation types focusing on the soil-foundation-structure interactions using centrifuge model tests

2017 ◽  
Vol 46 (14) ◽  
pp. 2301-2316 ◽  
Author(s):  
Heon-Joon Park ◽  
Jeong-Gon Ha ◽  
Sun-Yong Kwon ◽  
Moon-Gyo Lee ◽  
Dong-Soo Kim
Keyword(s):  
Storage Tank ◽  
Dynamic Behaviour ◽  
Model Tests ◽  
Centrifuge Model ◽  
Soil Foundation ◽  
Foundation Structure ◽  
Centrifuge Model Tests

Analysis on Excavation Procedure in Large Soft Soil Foundation Pit of Shanghai Expo Axis

2011 ◽  
Vol 243-249 ◽  
pp. 2909-2914
Author(s):  
Xiang Yuan ◽  
Quan Mei Gong ◽  
Shun Hua Zhou
Keyword(s):  
Numerical Calculation ◽  
Soft Soil ◽  
Model Tests ◽  
Diaphragm Wall ◽  
Foundation Pit ◽  
Centrifuge Model ◽  
Wall Deformation ◽  
Soil Foundation ◽  
Soft Soil Foundation ◽  
Centrifuge Model Tests

On the basis of the large soft soil foundation pit of Shanghai Expo axis and the Section 1 of underground complex project, this paper proposes the appropriate excavation procedure according to the results obtained by using centrifuge model tests and time hardening creep model, which uses ANSYS to compute foundation pit deformation caused by different excavation timeline, sequence and longitudinal excavation width of remained berm. The results of numerical calculation were approximately close to the horizontal displacement of the underground diaphragm wall measured both on site and from centrifuge model tests, so numerical calculation could well reflect the deformation behavior of excavation. The study also showed that more than 80% of underground diaphragm wall deformation caused by soil creep occurred within 60 days after the remained berm being excavated. In order to decrease the deformation, it would be useful to conduct plate structures as soon as the remained berm started being excavated. Remained berm and middle plate had good control over underground diaphragm wall deformation. When the remained berm was excavated by jumpily digging method, it would be advisable to firstly excavate the vicinity of underground diaphragm wall where there were no required protected objects nearby. The longitudinal excavation width of remained berm was proposed to be 20 meters in the north part and 30 meters in the south part.

Centrifuge Model Tests of Embankment on Soil Foundation

2012 ◽  
Vol 446-449 ◽  
pp. 1842-1845
Author(s):  
Xiao Yue Wang ◽  
Jie Cao ◽  
Rui Hua Zheng
Keyword(s):  
Moisture Content ◽  
Deformation Process ◽  
Cohesive Soil ◽  
Model Tests ◽  
Dry Density ◽  
Centrifuge Model ◽  
Moisture Contents ◽  
Soil Foundation ◽  
Centrifuge Model Tests ◽  
Peak Value

Centrifuge model tests were conducted to investigate the behavior of cohesive soil foundations during a construction of an embankment, considering different dry densities and moisture contents of the soil. During the construction, the deformation of soil foundation gradually increased and reached the peak value at the top of the foundation near the center of embankment. After the embankment was completed, the deformation of the foundation continued increasing. The dry density and moisture content of the soil significantly affected the deformation process of the foundation.

Centrifuge Model Tests of Embankment on Soil Foundation

2012 ◽  
Vol 446-449 ◽  
pp. 1842-1845
Author(s):  
Xiao Yue Wang ◽  
Jie Cao ◽  
Rui Hua Zheng
Keyword(s):  
Model Tests ◽  
Centrifuge Model ◽  
Soil Foundation ◽  
Centrifuge Model Tests

Evaluation of the seismic response of stone pagodas using centrifuge model tests

2014 ◽  
Vol 12 (6) ◽  
pp. 2583-2606 ◽  
Author(s):  
Heon-Joon Park ◽  
Dong-Soo Kim ◽  
Yun Wook Choo
Keyword(s):  
Seismic Response ◽  
Model Tests ◽  
Centrifuge Model ◽  
Centrifuge Model Tests

scholarly journals Evaluation of seismic behavior of box culvert buried in the ground through centrifuge model tests and numerical analysis

2019 ◽  
Vol 4 (2) ◽  
pp. 147-167 ◽  
Author(s):  
Hitoshi Yatsumoto ◽  
Yasuo Mitsuyoshi ◽  
Yasuo Sawamura ◽  
Makoto Kimura
Keyword(s):  
Numerical Analysis ◽  
Seismic Behavior ◽  
Model Tests ◽  
Centrifuge Model ◽  
Box Culvert ◽  
Centrifuge Model Tests

scholarly journals Modelling the embedment process during offshore pipe-laying on fine-grained soils

2013 ◽  
Vol 50 (1) ◽  
pp. 15-27 ◽  
Author(s):  
Z.J. Westgate ◽  
D.J. White ◽  
M.F. Randolph
Keyword(s):  
Deep Water ◽  
Small Amplitude ◽  
Model Tests ◽  
Soil Parameters ◽  
Sea State ◽  
Field Surveys ◽  
Centrifuge Model ◽  
Fine Grained ◽  
Displacement Patterns ◽  
Centrifuge Model Tests

Subsea pipelines are becoming an increasingly significant element of offshore hydrocarbon developments as exploration moves into deep-water environments further from shore. During the lay process, pipelines are subject to small amplitude vertical and horizontal oscillations, driven by the sea state and lay vessel motions. Centrifuge model tests have been used to simulate these small-amplitude lay effects, with varying degrees of idealization relative to the real lay process. In the soft soils found in deep water, pipe embedment can exceed a diameter or more, thus significantly affecting the lateral pipe–soil interaction, axial resistance, and thermal insulation. In this paper, results from centrifuge model tests are used to calibrate a model for calculating the dynamic embedment of a subsea pipeline. The model uses elements of plasticity theory to capture the effects of combined vertical and horizontal loading, and incorporates the softening of the surrounding soil as it is remoulded due to the pipeline motions. Influences from the lay rate, lay geometry, and sea state are included in the calculation process. The model is compared with observed as-laid pipeline embedment data from field surveys at three different offshore sites. Using site-specific soil parameters obtained from in situ testing and idealized pipe loads and motions to represent the load and displacement patterns during offshore pipe-laying, respectively, the model is shown to capture well the final as-laid embedment measured in the field surveys.

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