Simulation of landslide-induced surges and analysis of impact on dam based on stability evaluation of reservoir bank slope

Landslides ◽  
2018 ◽  
Vol 15 (10) ◽  
pp. 2031-2045 ◽  
Author(s):  
Yaoru Liu ◽  
Xiaoming Wang ◽  
Zheshu Wu ◽  
Zhu He ◽  
Qiang Yang
Keyword(s):  
Stability Evaluation ◽  
Bank Slope ◽  
Reservoir Bank Slope

scholarly journals Effects of Rapid Water-Level Fluctuations on the Stability of an Unsaturated Reservoir Bank Slope

2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
Jin-Zhu Mao ◽  
Jia Guo ◽  
Yong Fu ◽  
Wei-Peng Zhang ◽  
Ya-Nan Ding
Keyword(s):  
Finite Element ◽  
Stability Analysis ◽  
Water Level ◽  
Coupling Effect ◽  
Water Pressure ◽  
Water Level Fluctuations ◽  
Stability Factor ◽  
Bank Slope ◽  
The Stability ◽  
Reservoir Bank Slope

The instability of reservoir slope is likely to cause some severe natural hazards such as surge and barrier lake. In this study, the changes in seepage field and the distribution of the unsaturated zone of a reservoir bank slope subjected to rapid water-level fluctuations are investigated using the finite element method. The stability analysis of a reservoir slope under water-level fluctuation with a rate of 2 m/day is performed. The stability analysis is based on the theory of unsaturated soil mechanics and saturated-unsaturated seepage and accounts for the hydromechanical coupling effect. The changes in shear stress and strain as well as pore water pressure due to rapid water-level fluctuations are explicitly examined. Furthermore, the stability factor of safety, the underlying failure mechanism, and relevant influence factors are discussed. Based on the finite element analysis, it is found that the rapid loss of matrix suction would give rise to the surface landslide near the slope toe.

The Stability Analysis on Reservoir Bank Slope of Granite Stained Subgrade

2011 ◽  
Vol 250-253 ◽  
pp. 1711-1716
Author(s):  
Li Chao Wang ◽  
Ping Gen Zhou
Keyword(s):  
Stability Analysis ◽  
Rigid Body ◽  
Limit Equilibrium ◽  
Limit Equilibrium Method ◽  
Dynamic Compaction ◽  
Sliding Surface ◽  
Bank Slope ◽  
The Stability ◽  
Safety Operation ◽  
Reservoir Bank Slope

The limit equilibrium method for rigid body is used to analyze the stability of subgrade reservoir bank slope of granite stained. The sliding of subgrade reservoir bank slope reinforced by dynamic compaction along the interface will not be happened. In the most unfavorable conditions , the sliding surface will be formed inside the stained subgrade, which threatened to the safety operation of the expressway.

scholarly journals Satellite remote sensing-based detection of the deformation of a reservoir bank slope in Laxiwa Hydropower Station, China

Landslides ◽  
2012 ◽  
Vol 10 (2) ◽  
pp. 231-238 ◽  
Author(s):  
Dexuan Zhang ◽  
Gonghui Wang ◽  
Tinjun Yang ◽  
Mingchu Zhang ◽  
Shihang Chen ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Satellite Remote Sensing ◽  
Hydropower Station ◽  
Bank Slope ◽  
Reservoir Bank Slope

Effect of Permeability Coefficient of Reservoir Bank Slope on Pile Displacement and Ground Deformation

2013 ◽  
Vol 275-277 ◽  
pp. 304-309
Author(s):  
Guo Dong Zhang ◽  
Peng Du ◽  
Qing Ling Yi ◽  
Wen Luo ◽  
Xiao Hu Yu
Keyword(s):  
Deformation Mechanism ◽  
Permeability Coefficient ◽  
Ground Deformation ◽  
Safety Evaluation ◽  
Horizontal Displacement ◽  
Deformation Characteristics ◽  
Reservoir Water ◽  
Reservoir Water Level ◽  
Bank Slope ◽  
Reservoir Bank Slope

Due to effect of reservoir water, the deformation mechanism of reservoir bank slope has a great of influence to the buildings which locate on the bank slope. Considering the changes of permeability coefficient of ground, the deformation characteristics of bank slope ground and pile are analyzed based on the method of pile-soil interaction under the condition that the reservoir water level changing speed is invariable. The results revealed that the larger horizontal displacement of the ground and piles happened when the ground has a smaller permeability coefficient, and the larger settlement of the ground and pile happened, especially the pile which has greater differential settlement when the permeability coefficient of ground is larger. The results have certain reference significance on the safety evaluation and design of buildings which locate on reservoir bank slope.

Analysis and modeling of the combined effects of hydrological factors on a reservoir bank slope in the Three Gorges Reservoir area, China

2020 ◽  
Vol 279 ◽  
pp. 105858
Author(s):  
Da Huang ◽  
Shi-Lin Luo ◽  
Zhu Zhong ◽  
Dong-Ming Gu ◽  
Yi-Xiang Song ◽  
...  
Keyword(s):  
Three Gorges Reservoir ◽  
Three Gorges Reservoir Area ◽  
Combined Effects ◽  
Three Gorges ◽  
Reservoir Area ◽  
The Three Gorges Reservoir ◽  
Bank Slope ◽  
The Three Gorges ◽  
Reservoir Bank Slope
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