Application of 3D-DEM with seepage analysis to numerical simulation of rainfall-induced slope failure

2010 ◽  
pp. 689-693
Author(s):  
Alexander Capriles ◽  
Tatsuya Ishikawa ◽  
Seiichi Miura
Keyword(s):  
Numerical Simulation ◽  
Slope Failure ◽  
Seepage Analysis

scholarly journals Numerical simulation of slope failure treatment of a tunnel portal section based on MIDAS GTS

2021 ◽  
Vol 1972 (1) ◽  
pp. 012026
Author(s):  
Yetao Wang ◽  
Guanyu Zhu ◽  
Linbo Ding ◽  
Dequan Zhuang ◽  
Wenwen Ba
Keyword(s):  
Numerical Simulation ◽  
Slope Failure ◽  
Failure Treatment ◽  
Tunnel Portal

Numerical simulation of an unsaturated slope failure during an earthquake

2010 ◽  
pp. 1093-1099
Author(s):  
R Uzuoka ◽  
K Maruyama ◽  
T Mori ◽  
M Kazama ◽  
T Unno ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Slope Failure

scholarly journals Analysis of Sluice Foundation Seepage Using Monitoring Data and Numerical Simulation

2019 ◽  
Vol 2019 ◽  
pp. 1-15 ◽  
Author(s):  
Fan Xuefeng ◽  
Zhenyu Wu ◽  
Liu Lijun ◽  
Yanfeng Wen ◽  
Shu Yu ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Response Surface ◽  
Water Levels ◽  
Monitoring Data ◽  
Seepage Analysis ◽  
Seepage Pressure ◽  
Permeability Coefficients ◽  
Flood Season ◽  
Surface Method ◽  
Periodical Variation

For sluices built on soil foundations, seepage safety of the foundation is one of the most concerns during operation of sluices. Monitoring data could reflect the real seepage behavior in the foundation, but of which the shortcoming is that generally only the local seepage states can be measured. The seepage field in the whole foundation can be analyzed by numerical simulation. The permeability coefficients of the foundation materials significantly affect the numerical simulation results; however, it is difficult to accurately determine the values of permeability coefficients. In this paper, an approach based on response surface method (RSM) for calibration of permeability coefficients was proposed, and the efficiency of parameter calibration is improved by constructing the response surface equation instead of time-consuming finite element calculation of foundation seepage. The seepage in a sluice foundation was analyzed using monitoring data and numerical simulation. The monitoring data showed that the seepage pressure in the foundation periodically varies with high value in flood season and low value in dry season. After calibration of the permeability coefficients of the foundation materials using the measured seepage pressure, the seepage fields in the foundation for different water levels were numerically simulated to investigate the cause for the periodical variation of the seepage pressure and the seepage safety of the foundation was assessed with the calculated seepage gradients. The methods adopted in this study could be applied to seepage analysis for sluice foundations with similar geologic conditions and antiseepage measures.

scholarly journals Analysis of shallow failures triggered by the 14-16 November 2002 event in the Albaredo valley, Valtellina (Northern Italy)

2005 ◽  
Vol 2 ◽  
pp. 305-308 ◽  
Author(s):  
S. Dapporto ◽  
P. Aleotti ◽  
N. Casagli ◽  
G. Polloni
Keyword(s):  
Pore Water ◽  
Slope Failure ◽  
Pore Water Pressure ◽  
Limit Equilibrium ◽  
Water Pressure ◽  
Coupled Analysis ◽  
Element Analysis ◽  
Seepage Analysis ◽  
The North ◽  
Pressure Distributions

Abstract. On 14-16 November 2002 the North Italy was affected by an intense rainfall event: in the Albaredo valley (Valtellina) more than 200 mm of rain fell triggering about 50 shallow landslides, mainly soil slips and soil slip-debris flows. Landslides occurred above the critical rainfall thresholds computed by Cancelli and Nova (1985) and Ceriani et al. (1994) for the Italian Central Alps: in fact the cumulative precipitation at the soil slips initiation time was 230 mm (in two days) with a peak intensity of 15 mm/h. A coupled analysis of seepage and instability mechanisms is performed in order to evaluate the potential for slope failure during the event. Changes in positive and negative pore water pressures during the event are modelled by a finite element analysis of water flow in transient conditions, using as boundary condition for the nodes along the slope surface the recorded rainfall rate. The slope stability analysis is conducted applying the limit equilibrium method, using pore water pressure distributions obtained in the different time steps by the seepage analysis as input data for the calculation of the factor of safety.

scholarly journals Mitigation through seepage reduction in dams

2020 ◽  
Vol 156 ◽  
pp. 01006
Author(s):  
Novy Haryati ◽  
Abdul Hakam
Keyword(s):  
Numerical Simulation ◽  
Field Tests ◽  
Soil Parameters ◽  
The Finite Element Method ◽  
Seepage Analysis ◽  
Variation Of Parameters ◽  
Study Results ◽  
The Stability ◽  
North Sumatra ◽  
Good Research

There are many landslide and damages have occurred at dams due to the seepage. In addition, dam works often took inattention of the underneath soil parameters. This careless works resulted in failure of the dam structure as well as landslides. Based on this reason, a good research to be applied to dams is needed. Further, the potential landslides can be avoided. In this study an analysis of seepage analysis at the bottom of the dam is carried out. The landslide analysis is done by varying the parameter to build up the seepage. The case studies analyzed is taken at the seepage that occurred in Sei Wampu Dam located in North Sumatra. Soil data are obtained from the field tests which have been carried out in the previous work. The numerical simulation using the finite element method is gained to conduct the analysis. During the analyses, the variation of parameters obtained from the seepage calculation was recorded. The obtained seepage parameters that affect the stability of dams are then elaborated. The study results can be used for the mitigation efforts at the dams that have the potential for landslides.

Seepage analysis of highway subgrade in Guizhou mountainous area based on numerical simulation

2021 ◽  
Author(s):  
Xu-zhi Liang ◽  
Yun-wei Meng ◽  
Guo-kai Gao ◽  
Wei-yong Gong ◽  
Guang-yan Qing
Keyword(s):  
Numerical Simulation ◽  
Mountainous Area ◽  
Seepage Analysis

scholarly journals Numerical simulation of volcanic soil slope failure under coupled freeze-thaw and rainfall infiltration effects

2015 ◽  
Vol 1 (7) ◽  
pp. 5-10 ◽  
Author(s):  
Srikrishnan Siva Subramanian ◽  
Tatsuya Ishikawa ◽  
Shoji Yokohama ◽  
Tetsuya Tokoro
Keyword(s):  
Numerical Simulation ◽  
Slope Failure ◽  
Rainfall Infiltration ◽  
Soil Slope ◽  
Volcanic Soil ◽  
Freeze Thaw
Sign in / Sign up

Export Citation Format

Share Document