scholarly journals Dynamic behavior of pile-supported wharves by slope failure during earthquake via centrifuge tests

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Jung-Won Yun ◽  
Jin-Tae Han
Keyword(s):  
Slope Failure ◽  
Inertial Force ◽  
Horizontal Displacement ◽  
Retaining Walls ◽  
Inertial Forces ◽  
Ground Model ◽  
Centrifuge Model ◽  
Centrifuge Tests ◽  
Deck Plate ◽  
Centrifuge Model Tests

AbstractThe effects of earthquakes on pile-supported wharves include damage to piles by inertial forces acting on the superstructure, and damage caused by horizontal displacement of retaining walls. Piles can also be damaged through kinematic forces generated by slope failure. Such forces are significant but it is difficult to clearly explain pile damage during slope failure since the inertial force of superstructure and the kinematic force by slope failure can occur simultaneously during an earthquake. In this study, dynamic centrifuge model tests were performed to evaluate the effect of the kinematic force of the ground due to slope failure during earthquake on the behavior of a pile-supported wharf structure. Experimental results indicate that the slope failure in the inclined-ground model caused the deck plate acceleration and pile moment to be up to 24% and 31% respectively greater than those in the horizontal-ground model due to the kinematic force of the ground.

Centrifuge Model Tests on Seismic Slope Failure

2012 ◽  
pp. 501-510 ◽  
Author(s):  
Chiharu Mikuni ◽  
Satoshi Tamate ◽  
Tomohito Hori ◽  
Naoaki Suemasa
Keyword(s):  
Slope Failure ◽  
Model Tests ◽  
Centrifuge Model ◽  
Centrifuge Model Tests

Offshore Wind Turbine Mono-Bucket Foundations in Sand

2021 ◽  
Author(s):  
Han Eng Low ◽  
Fangyuan Zhu ◽  
Henning Mohr ◽  
Phillip Watson ◽  
Carl Erbrich ◽  
...  
Keyword(s):  
Wind Turbine ◽  
Offshore Wind ◽  
Offshore Wind Turbine ◽  
Large Rotation ◽  
Bucket Foundation ◽  
Dense Sand ◽  
Centrifuge Model ◽  
Centrifuge Tests ◽  
Rotational Response ◽  
Centrifuge Model Tests

Abstract Single (or mono) suction buckets have been put forward by others as possible offshore wind turbine (OWT) foundations. This paper presents a series of centrifuge model tests conducted in dense sand to investigate their monotonic response for a range of drainage conditions. The results from the centrifuge tests suggest that the mono-bucket rotational response at large rotation in dense sand is dependent on drainage conditions but does not seem to be affected by the contact condition between the bucket invert and the seabed. A final comparison between results from an equivalent set of uplift tests suggests, however, that multi-bucket foundation systems are likely to be more efficient foundation solutions, although suggestions are made which might improve mono-bucket foundation response.

Numerical Simulation and Analysis of Centrifuge Model Tests with Nonhomogeneous Materials in Geotechnical Engineering

2013 ◽  
Vol 353-356 ◽  
pp. 495-501
Author(s):  
Lie Xian Tang ◽  
Lian Jun Guo ◽  
Da Ning Zhang ◽  
Jian Ming Zheng
Keyword(s):  
Numerical Simulation ◽  
Model Test ◽  
Geotechnical Engineering ◽  
Model Tests ◽  
Centrifuge Model Test ◽  
Test Model ◽  
Geotechnical Centrifuge ◽  
Centrifuge Model ◽  
Centrifuge Tests ◽  
Centrifuge Model Tests

The primary methods are antetype observation and model tests which to check the actual engineering status in geotechnical engineering field. The antetype observation is the best direct and convictive method, but approach miscellaneous and spend hugely. The general model tests can not fulfil the same stress between model and antetype. Geotechnical centrifuge model test can not only minish the measure of model and fulfil the comparability condition, but also can found all kinds of non-symmetrical models and simulation all kinds of complicated engineering. So the geotechnical centrifuge model test is applied widely in the geotechnical engineering. This paper used the RFPA-Centrifuge and recured to the principle of geotechnical centrifuge model test, evaluated the safety of model only by increase the physical strength. Though the numerical calculating in nonhomogeneous models with different scales showed that stress, displacement and failure mode were accord with conform ratio of centrifuge model tests. Showed the advantage that the results of RFPA can be validated each other with results of physical tests. For some specifical complicated items in geotechnical engineering, make a good test model is not only very hard and have to spend much time, but also need expensive test equipment and much money for test materials. It is very good if we can use a method to conquer these shortages. So it is advisable that using the mechod which geotechnical centrifuge tests combine RFPA-Centrifuge numerical simulation analysis method.

scholarly journals DYNAMIC CENTRIFUGE MODEL TESTS ON TWO TYPES OF RETAINING WALLS REINFORCED WITH ANCHORS DIDDERING IN WALL RIGIDITY

2006 ◽  
Vol 62 (4) ◽  
pp. 767-779 ◽  
Author(s):  
Satoshi ICHIKAWA ◽  
Naoaki SUEMASA ◽  
Toshiyuki KATADA ◽  
Yasuo TOYOSAWA ◽  
Syunsuke SHIMADA
Keyword(s):  
Retaining Walls ◽  
Model Tests ◽  
Centrifuge Model ◽  
Centrifuge Model Tests
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