scholarly journals Numerical analysis of impact of fault and weak rock formation on mining-induced deformation of rock slope

2021 ◽  
Vol 861 (3) ◽  
pp. 032087
Author(s):  
C Zhang ◽  
C A Amagu ◽  
J. Kodama ◽  
A Sainoki ◽  
S Ogawa ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Rock Slope ◽  
Weak Rock ◽  
Rock Formation

scholarly journals Stability Analysis and Reinforcement of a High-Steep Rock Slope with Faults: Numerical Analysis and Field Monitoring

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Qibing Zhan ◽  
Xinjian Sun ◽  
Cheng Li ◽  
Yawei Zhao ◽  
Xinjie Zhou ◽  
...  
Keyword(s):  
Stability Analysis ◽  
Numerical Analysis ◽  
Rock Slope ◽  
Field Monitoring ◽  
Monitoring Data ◽  
Slope Surface ◽  
Monitoring Point ◽  
Reinforcement Measure ◽  
The Stability ◽  
External Forces

This study presents a stability analysis of a high-steep rock slope with two faults during excavations and evaluates the effectiveness of a proposed reinforcement method using prestressed anchor cables. A 3D finite difference model was established based on the strength reduction method using FLAC3D software. The influence of various fault conditions and the effectiveness of the reinforcement on the slope stability during the excavation process were analyzed and compared to field monitoring data. The numerical analysis and field monitoring results showed that the fault close to the slope surface (f20) was prone to the local instability under external forces caused by the excavation, but a fault further away from the slope surface (f14) had insignificant influence on the stability of the slope. Based on the numerical analysis results, the proposed reinforcement measure can increase the factor of safety (FOS) of the slope by 19.2%. The field monitoring data also showed that the displacement of the monitoring point gradually decreased after the reinforcement, and the deformation of the slope was effectively controlled.

Numerical Analysis of Stratified Rock Slope Stability Based on 3DEC

2013 ◽  
Vol 454 ◽  
pp. 133-139
Author(s):  
Zhi De Wang ◽  
Li Min Jiang ◽  
Yuan You Xia ◽  
Yao Yao Pei ◽  
Man Qing Lin
Keyword(s):  
Numerical Analysis ◽  
Yunnan Province ◽  
Rock Slope ◽  
Failure Modes ◽  
Horizontal Displacement ◽  
Vertical Displacement ◽  
Rock Slope Stability ◽  
Safety Coefficient ◽  
Practical Engineering ◽  
Stratified Rock

Discrete element software is used to simulate the excavation of a rock slope in Puli-Xuanwei Expressway in Yunnan Province. Through monitoring displacement development characteristics in different positions of slope, the result shows that the minimum horizontal displacement under excavation exists in the top of the slope, meanwhile the maximum horizontal displacement occurs in the foot and waist of the slope, and the maximum vertical displacement occurs in the top of the slope. Comparing rock slope in such conditions as different stratum angles, directions, rock characteristics and thickness, it concludes possible failure modes of slope and the variation law of safety coefficient under different conditions. This paper is instructive and offers reference for the practical engineering.

scholarly journals Numerical analysis of evaluation methods and influencing factors for dynamic stability of bedding rock slope

2017 ◽  
Vol 19 (3) ◽  
pp. 1937-1961 ◽  
Author(s):  
Yongquan Liu ◽  
Xinrong Liu ◽  
Yuming Lu ◽  
Xingwang Li ◽  
Peng Li
Keyword(s):  
Numerical Analysis ◽  
Dynamic Stability ◽  
Influencing Factors ◽  
Rock Slope ◽  
Evaluation Methods ◽  
Bedding Rock Slope

scholarly journals Numerical Analysis of Jointed Rock Slope in Practice.

2000 ◽  
Vol 41 (1) ◽  
pp. 24-33 ◽  
Author(s):  
Senro KURAOKA ◽  
Keiichi MONMA ◽  
Haruo SHUZUI
Keyword(s):  
Numerical Analysis ◽  
Rock Slope ◽  
Jointed Rock ◽  
Jointed Rock Slope

Rock Slope Stability Study of Numerical Analysis

2013 ◽  
Vol 753-755 ◽  
pp. 457-461
Author(s):  
Jing Jin ◽  
Jing Jiang
Keyword(s):  
Numerical Analysis ◽  
Research Method ◽  
Rock Slope ◽  
Stability Study ◽  
Comprehensive Analysis ◽  
Rock Slope Stability ◽  
Hydropower Station ◽  
Element Calculation ◽  
Analysis And Evaluation ◽  
Calculation Software

Combining the current research method of rock mass parameters, to the RuMei hydropower station in Tibet as the background, using the finite element calculation software, and using the two section for numerical analysis, considering all kinds of conditions under the condition of the simulated stress strain and displacement, the distribution of plastic failure, comprehensive analysis and evaluation of its stability.

Numerical Analysis of Tension-Type Stress - Concentration Cable and Stress-Dispersed Cable

2014 ◽  
Vol 1021 ◽  
pp. 148-151
Author(s):  
Jie Zhao ◽  
Ren Wang Liang
Keyword(s):  
Numerical Analysis ◽  
Stress Concentration ◽  
Bond Strength ◽  
Soil Layer ◽  
Cohesive Force ◽  
Weak Rock ◽  
Foundation Pit ◽  
Anchor Cable ◽  
Force Peak ◽  
Rock And Soil

Applications of stress concentration type cable in engineering are very common, but in some relatively weak rock and soil layer, it does not meet the requirements of bearing capacity. In addition to lessen the anchor cable anchorage length, we choose to use stress-dispersed anchor in many engineering[1]. In order to study the tensile anchorage segment bond distribution, this paper uses FLAC3D through changes in the design of foundation pit supporting anchor cable anchorage segment bond strength of the grouting body, analyzes the cohesive force in theanchorage segment of distribution and the size of the cohesive force peak.

Numerical Analysis of the 650,000 m2 Åknes Rock Slope based on Measured Displacements and Geotechnical Data

2008 ◽  
Vol 42 (5) ◽  
pp. 689-728 ◽  
Author(s):  
Vidar Kveldsvik ◽  
Herbert H. Einstein ◽  
Bjørn Nilsen ◽  
Lars Harald Blikra
Keyword(s):  
Numerical Analysis ◽  
Rock Slope ◽  
Geotechnical Data
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