scholarly journals Degradation of the State of a Ball Track at the ZP 6600

2017 ◽  
Vol 25 (1) ◽  
pp. 68-75
Author(s):  
Petr Klouda ◽  
Vlastimil Moni ◽  
Jan Blata ◽  
Lubomír Donát ◽  
František Helebrant
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Computation ◽  
The State ◽  
Mining Machine ◽  
Bottom Part ◽  
Element Method

Abstract The article deals with the examination of the state of the ball track of the heavy mining machine ZP6600/Z79. It gives results of material exams which were taken on given samples and describes the progress and results of the numerical computation of the state of tenseness by finite element method of the bottom part of the ball track when it touches the ball.

scholarly journals Analysis of slope instability processes though comparative between limit equilibrium and finite element methods

2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Luis Carlos Leguizamón Barreto ◽  
Juan José Ménendez Tellez
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Limit Equilibrium ◽  
The State ◽  
Slope Instability ◽  
Mechanical Resistance ◽  
Actual Behavior ◽  
The Finite Element Method ◽  
Material Stability ◽  
Element Method

Introduction: The article presents research results on the analysis of slope instability processes, conducted at the Universidad Pedagógica y Tecnológica de Colombia in 2019. Problem: Slope instability processes are permanently present in the state of Boyacá – Colombia. The stability analysis through the application of conventional limit equilibrium methods does not reflect the real conditions of mechanical resistance of the materials found. Aim: Analyze slope instability processes utilizing the finite element method in two critical spots located on the road that connects the city of Tunja with the town of Miraflores. Methods: Start with the search and compilation of information from critical spots with relevant geotechnical characterization on roads in the state, thereby permitting the identification of two unstable critical spots. With the use of geological, geotechnical and hydrological information, the mechanical behavior of the materials is modelled through the software Slide and Midas GTS NX. Results: The estimation of material stability through the finite element method shows more reliable results compared to the actual behavior of the studied locations and compared to the methods based on limit equilibrium. Conclusion:The use of this numerical simulation technique is recommended to replace conventional methods, being an affordable and effective tool for the analysis of instability processes. Originality: Most analyses of instability processes conducted in the state of Boyacá – Colombiado not use the finite element method. Limitations: The estimation of material stability is based on a constitutive model for soil and another for rock.

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