Evaluation of top-down cracking potential for asphalt pavements with 4.75 mm nominal maximum aggregate size mixture layer using full-scale field tests and finite element analysis

2017 ◽  
Vol 19 (5) ◽  
pp. 1089-1101 ◽  
Author(s):  
Sanghyun Chun ◽  
Kukjoo Kim ◽  
James Greene ◽  
Bouzid Choubane
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Field Tests ◽  
Aggregate Size ◽  
Asphalt Pavements ◽  
Maximum Aggregate Size ◽  
Top Down ◽  
Element Analysis ◽  
Cracking Potential ◽  
Scale Field

Experiment Study and Finite Element Analysis of the Failure for 75000 m3 Wet Gasholder

2010 ◽  
Vol 97-101 ◽  
pp. 3332-3335
Author(s):  
Zhi Qiang Li ◽  
Xiao Hu Yao ◽  
Long Mao Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Field Tests ◽  
Finite Element Code ◽  
Experiment Study ◽  
Element Analysis ◽  
Coal Gas ◽  
The People ◽  
Material Component ◽  
Gas Leak

In our city, 75000 m3 Wet Gasholder generated coal gas leak during the work due to the crack of tower wall , which directly endangered life and property security of the people. In the paper, the cause on the failure of gasholder was made much conjecture. Firstly, physicochemical examination and mechanics property on gasholder material component were conducted. Weld conditions between pillar and joist were observed on spot. Secondly, stress of gasholder was analyzed by using finite element code. Thirdly, field tests on the vibration of gasholder were also carried out by means of vibration apparatus. Finally, the principal cause of the failure is determined, and some propose on the maintenance and construction of gasholder is provided.

Étude par éléments finis du comportement à l'arrachement des ancrages injectés dans le roc

1990 ◽  
Vol 17 (2) ◽  
pp. 129-141 ◽  
Author(s):  
Brahim Benmokrane
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Rock Mass ◽  
Field Tests ◽  
Element Analysis ◽  
Great Cost ◽  
Quadrilateral Elements ◽  
Failure Loads ◽  
Rock Anchors ◽  
Éléments Finis

The uplift behavior of grouted rock anchors is little known despite their increasing use within the last few years and during which their field of application has been greatly broadened. The behavior of anchors is usually controlled at great cost after installation through field tests. Generally, their design is based on experience and an engineer with lesser experience finds it extremely difficult to design one. Furthermore, present methods for dimensioning anchors generally result in oversizing the anchors' grouted length without a corresponding improvement in the safety factor. To provide a more fundamental approach to designing grouted rock anchors, a finite element analysis of the uplift behavior has been carried out. The results of the analysis using isoparametric quadrilateral elements with eight nodes are presented in this article. Results of failure loads and modes obtained from anchors installed in the field are well predicted by the model. Key words: rock mass, grouted anchor, cement grout, finite elements, uplift of an anchor.

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