Quick assessment method for the slope stability factor of waste deposit dams

2020 ◽  
pp. 709-710
Author(s):  
Maria Lazar ◽  
Losif Andras
Keyword(s):  
Slope Stability ◽  
Assessment Method ◽  
Stability Factor ◽  
Quick Assessment ◽  
Waste Deposit

Analysis of the Relative Position of the Slope and Underground Mining Area and its Influence Properties

2013 ◽  
Vol 634-638 ◽  
pp. 3277-3281 ◽  
Author(s):  
Shi Guo Sun ◽  
Hong Yang ◽  
Chun Sheng Li ◽  
Bao Lin Zhang ◽  
Jia Wang ◽  
...  
Keyword(s):  
Slope Stability ◽  
Underground Mining ◽  
Mining Area ◽  
Open Pit ◽  
Stability Factor ◽  
Mining Depth ◽  
Extracellular Region ◽  
Geological Conditions ◽  
Slope Rock ◽  
The Stability

The stability state of slope rock mass is relating to each other’s relative location during the transformation from open-pit to underground mining, it’s the most disadvantageous influence on the slope stability when the underground mining area is located in the toe of slope, and it’s the best influence as in the slope extracellular region. Slope stability factor changes with the geometric dimensions of underground mining increased, but not in direct proportion. Under the condition of constant geometric dimensions of mining area, the influence on slope stability is changing with the mining depth increased. Thus indicating that the influence on slope stability by underground mining has its spatial property, and to determine the specific influence value requires a combination of many factors, such as the relationship of relative spatial position, the geometric dimensions of mining area, engineering geological conditions and so on.

Studies on the Changes in the Parameters Stability of Hinge Joint Concrete Block Slope

2012 ◽  
Vol 166-169 ◽  
pp. 1639-1643 ◽  
Author(s):  
Yu Qing Zhang ◽  
Yong Ning Mi ◽  
Lu Wang ◽  
Jin Ting Zhao ◽  
Zhen Guo Wang ◽  
...  
Keyword(s):  
Slope Stability ◽  
Slope Angle ◽  
Concrete Block ◽  
Friction Angle ◽  
Stability Factor ◽  
Foundation Engineering ◽  
Safety Coefficient ◽  
Hinge Joint ◽  
Shenyang City ◽  
Cohesion Force

Slope protection is to ensure the security of levee foundation engineering. This article take the actual project--the Bird Island Park of Shenyang City hinge joint concrete block slope,as an example, use of FLAC software and strengthen reduction method, calculated by 29°slope angle, 45kg block the effect slope stability factor of safety. In view of the different parameters (slope, block quality, bulk density, cohesion force, internal friction angle), discussion of various parameters on slope stability of safety coefficient, and obtained the best slope and block quality combination, so as to the slope protection design and application reference.

Three-Dimensional Slope Stability Analysis Methods Based on GIS Technology

2012 ◽  
Vol 594-597 ◽  
pp. 2356-2360
Author(s):  
Xiao Dong Pan ◽  
Li Hong Yang ◽  
Sheng Ye Zhang ◽  
Wei Pu ◽  
Ming Sun
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Three Dimensional ◽  
Slope Stability Analysis ◽  
Stability Factor ◽  
Gis Technology ◽  
Grid Data ◽  
Borehole Data ◽  
Slide Block ◽  
Data Layer

By using imbalance thrust force method, the slope stability factor based on three-dimensional slide block was deduced. According to the borehole data of highway, the TIN data layer and grid data layer for three-dimensional slope stability analysis were carried out by use of ArcMap. The value of each gird cell of different layers are picked up as slide block, it makes convenience in the slope stability analysis. Considering the property of bedding landslide, the three-dimensional slope stability analysis program based on VBA of ArcGIS is put forward in this paper. Taking one of the large rocky landslides as an example, the results of the three-dimensional stability analysis with slope before and after excavation, as well as the different water level conditions are compared. Furthermore, the directive significance of the three-dimensional method in landslide harness engineering was discussed.

Slope Stability Analysis Based on Strength Reduction Method FEM from the Perspective of Mechanics

2012 ◽  
Vol 424-425 ◽  
pp. 1187-1190
Author(s):  
Yue Zhai ◽  
Kun Long Yin
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Reduction Method ◽  
Limit Equilibrium ◽  
Limit Equilibrium Method ◽  
Strength Reduction ◽  
Stability Factor ◽  
Strength Reduction Method ◽  
Equilibrium Method ◽  
Calculation Results

With the anti-shear parameters reduction, the nonlinear strength reduction FEM model of slope turns to unstable status and the numerical non-convergence occurs simultaneously. Hence, the safety stability factor obtained based on c-φ reduction algorithm can be regarded as equal to stability factor obtained using limit equilibrium method. In this paper, stability analysis of one reservoir slope is made and the calculation results show that the strength reduction method matches the traditional grid limit equilibrium method well, yet with much more available information. Efficient and accurate, the strength reduction FEM is feasible to examine slope stability and analyze slope movement patterns.

Sensibility Analysis of Mechanical and Geometrical Parameters On Soil Slope Stability

2011 ◽  
Vol 268-270 ◽  
pp. 1712-1716 ◽  
Author(s):  
Xu Sheng Yang
Keyword(s):  
Slope Stability ◽  
Influencing Factor ◽  
Slope Angle ◽  
Friction Angle ◽  
Grey System Theory ◽  
Stability Factor ◽  
Geometrical Parameters ◽  
Grey System ◽  
Dilatancy Angle ◽  
Grey Correlation Analysis

Based on the FLAC2D finite difference software, We can use strength reduction theory to gained the stability factor of the 48 soil slopes under the different conditions, Grey Correlation Analysis Method of the Grey System Theory is employed to analyze the sensitivities of factor influencing slope stability. The matrix of correlation data is setup, the elements of which are transformed to dimensionless parameters. The grey correlative factors and grey correlative degrees which respect to the influencing factor and the slope stability factor are computed, and the sensible factors influence slope stability are decided. The results show that the cohesion of the soil. The density and the internal friction angle are the most sensitive factors to the slope stability, and the dilatancy angle, slope angle and the slope height are taken second place, which provide a reference to the reasonably and effectively design of the actual slope works.

scholarly journals In-situ tests for slope stability of solid waste deposit

2015 ◽  
Vol 3 (2) ◽  
pp. 56-59
Author(s):  
Kiyoshi Omine ◽  
Satoshi Sugimoto ◽  
Atsushi Yamawaki
Keyword(s):  
Slope Stability ◽  
Solid Waste ◽  
In Situ Tests ◽  
Waste Deposit

Slope Stability Comparatively Analyzed with 2D and 3D FEM

2012 ◽  
Vol 220-223 ◽  
pp. 2908-2911
Author(s):  
Jie Qun Liu ◽  
Jin Long Liu
Keyword(s):  
Slope Stability ◽  
Safety Factor ◽  
3D Model ◽  
Model Analysis ◽  
Stability Factor ◽  
Surface Load ◽  
3D Fem ◽  
The Stability ◽  
2D And 3D ◽  
2D Model

A typical slope has been comparatively analyzed with 2D and 3D FEM, it is showed that the length of surface load at top surface of slope shorted, the stability factor of slope of 3D model increased, which is far more than that of 2D model. In a certain degree, the safety factor got by 3D model is bigger than that of 2D model, so the safety factor of slope is underestimated by 2D model analysis sometimes.

Determination of Critical Height of Slope Filled by Red-Bed Soft Rock under Seismic Loading

2011 ◽  
Vol 261-263 ◽  
pp. 1655-1659
Author(s):  
Guo Xiong Wu ◽  
Xiang Shou Chen ◽  
Jing Sheng Ding ◽  
Wang Fei Ding
Keyword(s):  
Slope Stability ◽  
Soft Rock ◽  
Seismic Loading ◽  
Stability Factor ◽  
Critical Height ◽  
Seismic Loadings ◽  
Linear Slope ◽  
The Stability ◽  
Fill Slope ◽  
Red Bed

The combined influence of the earthquakes and the widespread red-bed soft rock as fill material necessitates the increasing attention on the slope stability in the west region of Yunnan province. To determine the critical height of slope filled by such soft rock under seismic loading, this paper establishes a model simulating a fill slope based on the finite element method and the strength reduction theory. The influence of different slope configurations, including different slope ratios, heights, and side forms on the slope stability is analyzed, and with the stability factor equal or greater than 1.1 as designated in the specifications, the slope critical heights are back calculated. The results show: (1)seismic loading has a significant influence on the slope stability, although its decreasing magnitude slows down with the increase of the slope height.; (2)the fill slope 16m in height is most instable under seismic loading, so the slope at or greater than 16m high is not recommended; (3)whatever the loading forms on the slope, either under the gravity loading only or the combined gravity and seismic loadings, the linear slope is most instable, with increasing stability for concave and step slopes.

scholarly journals A concise algorithm for computing the factor of safety using the Morgenstern–Price method

2005 ◽  
Vol 42 (1) ◽  
pp. 272-278 ◽  
Author(s):  
D Y Zhu ◽  
C F Lee ◽  
Q H Qian ◽  
G R Chen
Keyword(s):  
Slope Stability ◽  
Factor Of Safety ◽  
High Efficiency ◽  
Limit Equilibrium ◽  
Limit Equilibrium Method ◽  
Scaling Factor ◽  
Stability Factor ◽  
Equilibrium Method ◽  
Safety Limit ◽  
Present Algorithm

A concise algorithm is proposed in this paper for the calculation of the factor of safety of a slope using the Morgenstern–Price method. Based on force and moment equilibrium considerations, two expressions are derived for the factor of safety Fs and the scaling factor λ, respectively, both in relatively simple forms. With this algorithm and assumed initial values of Fs and λ, the solutions for Fs and λ are found to converge within a few iterations. Compared to other procedures, the present algorithm possesses the advantages of simplicity and high efficiency in application. It is rather straightforward to implement this algorithm into a computer program.Key words: slope, stability, factor of safety, limit equilibrium method.

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