scholarly journals Numerical Simulation for the Effect of Joint Inclination to the Stability of Stratified Rock Slope

2012 ◽  
Author(s):  
Qihong Wu ◽  
Zhiyong Kou ◽  
Shiming Wan
Keyword(s):  
Numerical Simulation ◽  
Rock Slope ◽  
The Stability ◽  
Joint Inclination ◽  
Stratified Rock

scholarly journals The numerical simulation on the stability of steep rock slope by DDA

2017 ◽  
Author(s):  
Jianye Zhu ◽  
Yiguo Xue ◽  
Yufan Tao ◽  
Kai Zhang ◽  
Zhiqiang Li ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Rock Slope ◽  
The Stability

scholarly journals Modified Limiting Equilibrium Method for Stability Analysis of Stratified Rock Slopes

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Rui Yong ◽  
Chang-Dong Li ◽  
Jun Ye ◽  
Man Huang ◽  
Shigui Du
Keyword(s):  
Three Gorges Reservoir ◽  
Rock Slope ◽  
Bedding Plane ◽  
Three Gorges ◽  
Shear Strength Parameters ◽  
Strength Parameters ◽  
Bedding Planes ◽  
Equilibrium Method ◽  
The Stability ◽  
Stratified Rock

The stratified rock of Jurassic strata is widely distributed in Three Gorges Reservoir Region. The limit equilibrium method is generally utilized in the stability analysis of rock slope with single failure plane. However, the stratified rock slope cannot be accurately estimated by this method because of different bedding planes and their variable shear strength parameters. Based on the idealized model of rock slope with bedding planes, a modified limiting equilibrium method is presented to determine the potential sliding surface and the factor of safety for the stratified rock slope. In this method, the S-curve model is established to define the spatial variations of the shear strength parameterscand  φof bedding plane and the tensile strength of rock mass. This method was applied in the stability evaluation of typical stratified rock slope in Three Gorges Reservoir Region, China. The result shows that the factor of safety of the case study is 0.973, the critical sliding surface for the potential slip surface appears at bedding plane C, and the tension-controlled failure occurs at 10.5 m to the slope face.

Numerical Simulation Study on High Dip Bedded Soft Rock Slope Stability of Surface Mine

2013 ◽  
Vol 868 ◽  
pp. 391-394
Author(s):  
Bao Yong Liu ◽  
Di Yang
Keyword(s):  
Numerical Simulation ◽  
Rock Slope ◽  
Soft Rock ◽  
Scientific Basis ◽  
Control Measures ◽  
Rock Slope Stability ◽  
Surface Mine ◽  
Deformation And Fracture ◽  
The Stability ◽  
Fracture Processes

According to the actual progress of a certain Surface Mine and based on strength reduction method, the deformation and fracture processes of the high dip bedded soft rock slope was simulated with RFPA-SRM, the stability of the slope was calculated. By analyzing the numerical simulation results, the characters of the deformation of high dip bedded soft rock slope and the landslide mode were demonstrated, which could provide a scientific basis for reasonable landslide control measures.

Numerical simulation on the stability of rock slope based on an improved SPH Method

2021 ◽  
Vol 18 (7) ◽  
pp. 1937-1950
Author(s):  
Shu-yang Yu ◽  
Xu-hua Ren ◽  
Ji-xun Zhang ◽  
Hai-jun Wang ◽  
Zhao-hua Sun ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Rock Slope ◽  
Sph Method ◽  
The Stability ◽  
Stability Of Rock Slope

Numerical Simulation of Fractured Rock Slope with Shear-Slip Behavior

2014 ◽  
Vol 548-549 ◽  
pp. 673-677
Author(s):  
Qin Gao ◽  
Gui He Wang
Keyword(s):  
Numerical Simulation ◽  
Rock Slope ◽  
Pore Water Pressure ◽  
Fractured Rock ◽  
Water Pressure ◽  
Analysis Method ◽  
Element Simulation ◽  
Slip Planes ◽  
Shear Slip ◽  
The Stability

The development of shear-slip cracks and motion trend of fracture water were presented for discussing the shear-slip behavior and analyzing the stability of fractured rock slope under hydraulic action. Seepage behavior of epigenetic cracks and the positions of slip or collapse were also investigated by monitoring pore water pressure using DEM. The analysis method of discrete element simulation for fractured rock slope was proposed. The results of numerical simulation indicated that interpenetrating fractures are more likely to be slip planes.

scholarly journals Particle Swarm Optimization Algorithm in Numerical Simulation of Saturated Rock Slope Slip

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Bowen Liu ◽  
Zhenwei Wang ◽  
Xiaoyong Zhong
Keyword(s):  
Numerical Simulation ◽  
Particle Swarm Optimization ◽  
Optimization Algorithm ◽  
Rock Slope ◽  
Particle Swarm Optimization Algorithm ◽  
Particle Swarm ◽  
Pso Algorithm ◽  
Swarm Optimization ◽  
Saturated Rock ◽  
The Stability

With the continuous popularization and development of highway traffic in mountainous areas, the number of rock slopes is also increasing. In order to improve the stability of rock slope and reduce the harm caused by slope slip, this paper carries out numerical simulation of rock slope sliding based on particle swarm optimization algorithm. Firstly, this paper combines the differential evolution algorithm and simplex method to improve the global and local search ability of particle swarm optimization (PSO) algorithm and analyzes the performance of the algorithm. ABAQUS software is used to simulate rock slope sliding, the finite element method is used to analyze the stability of rock slope, and LS-DYNA program is used to simulate rockfall impact rock slope. During the numerical simulation, the improved algorithm is used to analyze all the data. Experimental data show that the improved PSO algorithm converges after nearly 100 iterations and the convergence speed and optimization accuracy are high. In the numerical simulation, the average failure probability of the left and right sides of the main section at the top, middle, and foot of the slope is 0.0820 and 0.0723, 0.0772 and 0.0492, and 0.0837 and 0.0677, respectively, indicating that the overall instability probability of the left side of the rock slope is higher than that of the right side. The rock slope with the same direction through joint is mainly affected by the joint at the toe of the slope, the rock slope with reverse through joint is mainly affected by the joint in the slope, and the sliding occurs from the middle to both ends. In addition, with the increase of the size and height of rockfall, the total energy of rock slope is also increasing, and the possibility and degree of rock slope sliding are higher. This shows that the improved particle swarm optimization algorithm can effectively analyze some factors affecting slope slip in numerical simulation of saturated rock slope slip.

Study of Stability Analysis and Reinforcing Technique on Counterrendency Fracture Rock Slope

2011 ◽  
Vol 90-93 ◽  
pp. 692-700
Author(s):  
Hou Li Fu ◽  
Chun Hui Qin ◽  
Jie Han
Keyword(s):  
Numerical Simulation ◽  
Stability Analysis ◽  
Rock Slope ◽  
Slope Parameter ◽  
Rock Slopes ◽  
Fracture Rock ◽  
Retaining Structure ◽  
Stability Of Slope ◽  
The Stability

According to the essential features of countertendency fracture rock slopes and the geology condition of engineering. The stability of slope is calculated and evaluated by the following methods, including the stability analysis of slope with multiple-steps and Goodman-Bray's stability analysis of toppling slope. Moreover, we can put forward retaining structure which is based on grid beam, this is rely on results that have calculated according to the above theory, such as the characteristics of slope, parameter of rock and supporting density, and simulation the retaining structure in the method of numerical simulation.

scholarly journals Stability Assessment of a Bedding Rock Slope Using Q-slope and Seismic Tomography: A Case Study in the Ecuadorian Amazon

2021 ◽  
Author(s):  
Jorge Ronny Espin ◽  
Sebastián Araujo
Keyword(s):  
Seismic Tomography ◽  
Rock Slope ◽  
Input Parameter ◽  
The Road ◽  
Core Recovery ◽  
Well Differentiated ◽  
The Stability ◽  
Stratified Rock

Roads are generally affected by slope failures, and these failures can increase when there are weathered materials and high rainfall. These circumstances occur in the sub-Andean zone of Ecuador. This is the region where the study area is located. The stability of a stratified rock slope, which is affecting a section of highway E45, was evaluated. The study slope is exposed to the road, but the upper part is covered by a soil-type material and dense vegetation that makes it challenging to study. We applied the Q-slope method and seismic tomography; these methods used together worked well, because they allowed to correlate and infer information about the quality of the rock mass, even in a fast and economical way. We also performed core drilling with core recovery in the crown of the slope and SPT test. The slope presented two well-differentiated zones; therefore, Q-slope values were calculated for each of these zones. The results show that the slope is unstable. The application of seismic tomography as an input parameter for calculating Q-slope was important because it allowed evaluating the stability where it is impossible to collect geomechanical information, correlate information taken at the foot of the slope, and define the depth of the bedrock.

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