Fuzzy Reliability Analysis of Geocell Protective Slope Stability

2012 ◽  
Vol 166-169 ◽  
pp. 1917-1921 ◽  
Author(s):  
Guang Yue Wang ◽  
Yan Han
Keyword(s):  
Probability Density Function ◽  
Failure Probability ◽  
Soil Property ◽  
Structural Performance ◽  
Reliability Model ◽  
Fuzzy Reliability ◽  
Performance Function ◽  
Stability Of Slope ◽  
The Stability ◽  
Calculated Model

In order to analyze the uncertainty existing in the stability of slope with geocell, the fuzziness of soil property parameters should be considered. In this paper, probability density function of structural performance function and membership function of the stability of slope with geocell was determined. The fuzzy reliability model of the stability of slope with geocell was established. The fuzzy reliability and fuzzy failure probability of slope with geocell instability were calculated, and the practicability of the calculated model was verified.

scholarly journals Parametric Analysis of Slope Stability for River Embankment

2020 ◽  
Vol 4 (3) ◽  
pp. 196
Author(s):  
Dhrubo Haque ◽  
Md Isteak Reza
Keyword(s):  
Slope Stability ◽  
Soil Property ◽  
Failure Surface ◽  
Worst Case ◽  
Creative Commons ◽  
Stability Of Slope ◽  
The Stability ◽  
Underlying Soil ◽  
Open Access Article ◽  
Stiff Soil

This paper has aimed to investigate the slope stability for various conditions like embankment geometry, water level and soil property. The analysis has been performed by using the XSTABL program for different slope heights, slope angles and flood conditions with a fixed soil cohesion value. Since the rapid drawdown is the worst case for a particular embankment therefore, the analysis has been further performed with different cohesion values. From this investigation it has been noticed that the increase of cohesion of soil can increase the stability to a great extent. All the analysises have been performed for twenty bore logs. It has been found that the underlying soil affects the stability of slope as the failure surface intersects the soil of this region. It has been also observed that the loose, liquefiable sandy soil decreases the stability while the stiff soil with sufficient cohesion value stabilizes the slope of embankment.  This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited. 

Non-Probabilistic Reliability Research on Slope Stability Based on Interval Analysis

2013 ◽  
Vol 838-841 ◽  
pp. 835-839
Author(s):  
Xiao Chun Lu ◽  
Liang Gan
Keyword(s):  
Slope Stability ◽  
Reliability Analysis ◽  
Uniform Distribution ◽  
Safety Factor ◽  
Failure Probability ◽  
Interval Analysis ◽  
Evaluation System ◽  
Safety Evaluation ◽  
Structural Performance ◽  
Performance Function

In this paper, slope stability considering non-probabilistic reliability analysis based on interval analysis was discussed. We can get safety factor, safety factor interval, non-probabilistic reliability by slope stability computation based on interval analysis. Based on the hypothesis that interval variable of structural performance function numerical value obeys uniform distribution, failure probability based on interval analysis was put forward. These form plural evaluation system about slope stability; it perfects safety evaluation for slope stability.

Stability Analysis for Pillars during the Process of Panel Mining Based on Dynamic Fuzzy Reliability

2011 ◽  
Vol 120 ◽  
pp. 263-268
Author(s):  
Shi Jiao Yang ◽  
Hui Luo ◽  
Jian Yong Dai ◽  
Chang Zhen Wu
Keyword(s):  
Strain State ◽  
Fuzzy Reliability ◽  
Pillar Stability ◽  
Performance Function ◽  
Material Parameters ◽  
Entire Process ◽  
Lead Zinc ◽  
Zinc Mine ◽  
Finite Element Numerical Simulation ◽  
The Stability

Panel mining requires constructing lots of artificial pillars in underground metal mines. Along with the development of the mining process the stress-strain state of pillars changes constantly. Finite element numerical simulation with Midas/GTS software is used to analyze the stability of the pillar during the entire process of panel mining and consider randomness and fuzziness for material parameters of concrete and ore rock to get stress distribution in the pillar. In this paper, the performance function and equation of dynamic fuzzy reliability for a pillar in the whole mining process are established and are solved by a program developed with the MATLAB software. Applying the proposed theory and procedures to dynamic fuzzy reliability analysis and calculation of the pillar was set in panel mining under complex conditions in Zhao Tong Lead-Zinc mine. The results indicate that dynamic fuzzy reliability can better reflect the pillar stability during the entire process of panel mining and the proposed theory and procedures are effective in evaluating the dynamic fuzzy reliability.

Reliability Analysis for Stiffened Plate on the Maximum Entropy Method

2012 ◽  
Vol 525-526 ◽  
pp. 361-364
Author(s):  
Jian He ◽  
Xiao Yan Chen
Keyword(s):  
Probability Density Function ◽  
Probability Density ◽  
Maximum Entropy ◽  
Density Function ◽  
Failure Probability ◽  
Maximum Entropy Method ◽  
Random Variables ◽  
Entropy Method ◽  
Stiffened Plate ◽  
Performance Function

Stiffened plate is widely used in vessel structure because of its high bearing capacity and low weight so the research of failure probability for stiffened plate under explosion load has important engineering meaning. Stiffened plate under near-field explosion is taken as research subject, dynamite density and yield stress of plate are selected as random variables, the original values of one hundred groups of random variables are gotten through the random number generation program, and the moments of random variables are obtained. Based on failure criterion of displacement ductility, the performance function of structure is established, probability density function of performance function is fitted using maximum entropy method then the failure probability of stiffened plate structure is obtained. So as to solve the problem of calculate failure probability when the sample size is small and the probability density function is unknown.

Some Relationship between Safety Factor of Earthquake Slope and Related Parameters

2011 ◽  
Vol 422 ◽  
pp. 688-692
Author(s):  
Xiao Hei He ◽  
Geng You Han ◽  
Rui Hua Xiao
Keyword(s):  
Numerical Simulation ◽  
Rock Mechanics ◽  
Safety Factor ◽  
Limit Equilibrium ◽  
Static Method ◽  
Acceleration Coefficient ◽  
The Wenchuan Earthquake ◽  
Stability Of Slope ◽  
The Stability ◽  
The Relationship

Abstract:Since the Wenchuan earthquake happened, the slope stability had been paid much more attention. The safety factor is an important parameter that can be used to evaluate the stability of slope. The pseudo-static method that based on limit equilibrium and the method of numerical simulation can calculate the safety factor accurately, but the velocity that gets the result is slow. If we can establish the relationship between safety factor and some other parameters, then we can calculate the safety factor by using the relationship more quickly. This paper establishes much relationship, such as the relationship between the rock mechanics parameters and the average danymic safety factor, the relationship between the rock mechanics parameters and the ratio of average danymic safety factor to static safety factor, the relationship between the rock mechanics parameters and the average earthquake acceleration coefficient, the relationship between the average earthquake acceleration coefficient and the ratio of average danymic safety factor to static safety factor, and the relationship between the earthquake acceleration coefficient and the ratio of danymic safety factor to static safety factor on the condition of different rock mass.

A grid-based physical model to analyze the stability of slope unit

Geomorphology ◽  
2021 ◽  
pp. 107887
Author(s):  
Shaojie Zhang ◽  
Zhigang Ma ◽  
Yongjian Li ◽  
Kaiheng Hu ◽  
Qun Zhang ◽  
...  
Keyword(s):  
Physical Model ◽  
Slope Unit ◽  
Stability Of Slope ◽  
The Stability ◽  
Grid Based

Study on Fuzzy Reliability of Shaft Fixing Grinding Wheel in Internal Grinding

2006 ◽  
Vol 304-305 ◽  
pp. 218-221
Author(s):  
Chun Xiang Ma ◽  
Z.H. Qu ◽  
Q.J. Wu ◽  
Zhen Ruan ◽  
Li Ming Xu
Keyword(s):  
Probability Theory ◽  
Fatigue Strength ◽  
Set Theory ◽  
Fuzzy Set Theory ◽  
Grinding Wheel ◽  
Reliability Model ◽  
Fuzzy Probability ◽  
Fuzzy Reliability ◽  
Internal Grinding ◽  
Fuzzy Probability Theory

The fuzzy allowable intervals of the deflection, the vibration frequency and the fatigue strength of the shaft fixing grinding wheel are proposed in present paper based fuzzy set theory. According to fuzzy probability theory, the fuzzy reliability model of the rigidity, the fuzzy reliability model of the vibration and the fuzzy reliability model of the fatigue for the shaft fixing grinding wheel in internal grinding are given. The method is put into real example.

scholarly journals Evaluation on the Stability of Slope at Faculty of Engineering and Built Environment (FKAB) using Slope/w

2016 ◽  
Vol 28 (1) ◽  
pp. 79-86 ◽  
Author(s):  
Salmah Salween ◽  
◽  
Khairul Anuar Mohd Nayan ◽  
Mohammad Omar Faruk Murad
Keyword(s):  
Built Environment ◽  
Stability Of Slope ◽  
The Stability

Landslide Simulation Using Limit Equilibrium and Finite Element Method

2016 ◽  
Vol 857 ◽  
pp. 555-559 ◽  
Author(s):  
Zuhayr Md Ghazaly ◽  
Mustaqqim Abdul Rahim ◽  
Kok Alfred Chee Jee ◽  
Nur Fitriah Isa ◽  
Liyana Ahmad Sofri
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Factor Of Safety ◽  
Slip Surface ◽  
Limit Equilibrium ◽  
Main Concern ◽  
Analysis Method ◽  
Stability Of Slope ◽  
The Stability ◽  
Element Method

Slope stability analysis is one of the ancient tasks in the geotechnical engineering. There are two major methods; limit equilibrium method (LEM) and finite element method (FEM) that were used to analyze the factor of safety (FOS) to determine the stability of slope. The factor of safety will affect the remediation method to be underdesign or overdesign if the analysis method was not well chosen. This can lead to safety and costing problems which are the main concern. Furthermore, there were no statement that issued one of the analysis methods was more preferred than another. To achieve the objective of this research, the soil sample collected from landslide at Wang Kelian were tested to obtain the parameters of the soils. Then, those results were inserted into Plaxis and Slope/W software for modeling to obtain the factor of safety based on different cases such as geometry and homogenous of slope. The FOS obtained by FEM was generally lower compared to LEM but LEM can provide an obvious critical slip surface. This can be explained by their principles. Overall, the analysis method chosen must be based on the purpose of the analysis.

Sign in / Sign up

Export Citation Format

Share Document