scholarly journals Assessing River Embankment Stability Under Transient Seepage Conditions

2016 ◽  
Vol 158 ◽  
pp. 350-355 ◽  
Author(s):  
Guido Gottardi ◽  
Carmine Gerardo Gragnano ◽  
Irene Rocchi ◽  
Marco Bittelli
Keyword(s):  
Transient Seepage ◽  
River Embankment ◽  
Embankment Stability

scholarly journals Probabilistic analysis of flood embankment stability: the case study of the Adige River embankment in Italy

2020 ◽  
Vol 195 ◽  
pp. 01003
Author(s):  
Alessia Amabile ◽  
Fabio De Polo ◽  
Alessandro Tarantino
Keyword(s):  
Stability Analysis ◽  
Probabilistic Approach ◽  
Flood Hazards ◽  
Probabilistic Distribution ◽  
Worldwide Phenomenon ◽  
The Stability ◽  
River Embankment ◽  
Flood Defence ◽  
Embankment Stability

Flooding is a worldwide phenomenon. Over the last few decades the world has experienced a rising number of devastating flood events and the trend in such natural disasters is increasing. Furthermore, escalations in both the probability and magnitude of flood hazards are expected as a result of climate change. Flood defence embankments are one of the major flood defence measures and stability assessment for these structures is therefore a very important process. Traditional deterministic approaches to stability analysis do not allow taking into account and quantifying the uncertainties in soil characterisation. For this reason they may not be sufficient to capture the failure of flood embankments. The paper presents a probabilistic approach for the stability analysis of flood embankments taking into account the probabilistic distribution of soil hydro-mechanical properties. The approach is validated against the failure case study of the Adige river embankment in Italy, by comparing the probability of failure of two sections, within and outside the failure segment respectively.

An Extended Pressure Application for Transient Seepage Problems with a Free Surface

2005 ◽  
Vol 8 (6) ◽  
pp. 613-625 ◽  
Author(s):  
M. Tamer Ayvaz ◽  
Mustafa Tuncan ◽  
Halil Karahan ◽  
Ahmet Tuncan
Keyword(s):  
Free Surface ◽  
Pressure Application ◽  
Transient Seepage

Analyses of groundwater flow and plant evapotranspiration in a vegetated soil slope

2013 ◽  
Vol 50 (12) ◽  
pp. 1204-1218 ◽  
Author(s):  
A.K. Leung ◽  
C.W.W. Ng
Keyword(s):  
Groundwater Flow ◽  
Pore Water Pressure ◽  
Water Pressure ◽  
Three Dimensional ◽  
Root Water Uptake ◽  
Dry Season ◽  
Climatic Data ◽  
Wet Season ◽  
Soil Slopes ◽  
Transient Seepage

Understanding seasonal hydrogeological responses of vegetated soil slopes is vital to slope stability because pore-water pressure (PWP) varies from positive values upon rainfall in wet seasons to negative values upon plant evapotranspiration (ET) in dry seasons. There are, however, few case histories that report seasonal performance of vegetated soil slopes. In this study, a vegetated slope situated in Hong Kong was instrumented to analyse (i) groundwater flow during rainfall in the wet season and (ii) effects of plant ET on PWP in the dry season. Two- and three-dimensional anisotropic transient seepage analyses are conducted to identify groundwater flow mechanism(s) during a heavy rainstorm. Through water and energy balance calculations, measured plant-induced suction is interpreted with plant characteristic and climatic data. During the rainstorm, substantial recharge of the groundwater table was recorded, likely due to preferential water flow along relict joints and three-dimensional cross-slope groundwater flow. During the dry season, the peak suction induced by plant ET is up to 200 kPa and the depth of influence is shallower than 200% of the root depth. For the range of suctions monitored, root-water uptake is revealed to have been restricted by suction not very significantly and was driven mainly by the climatic variation.

scholarly journals Key issues on seepage analysis in mountain river embankment

2018 ◽  
Vol 189 ◽  
pp. 052041
Author(s):  
Wenjia Tang ◽  
Jiamin Hong ◽  
Xinzhou Huang ◽  
Jian Huang
Keyword(s):  
Mountain River ◽  
Seepage Analysis ◽  
Key Issues ◽  
River Embankment

Research on Optimal Index Set Based on Consequence-Reverse-Diffusion Method of Yellow River Downstream Embankment

2014 ◽  
Vol 955-959 ◽  
pp. 3020-3025
Author(s):  
Feng Feng ◽  
Hong Tao Jia ◽  
Xiao Ming Rong
Keyword(s):  
Index System ◽  
Influence Factor ◽  
Yellow River ◽  
Influence Factors ◽  
Safety Evaluation ◽  
Diffusion Method ◽  
The Yellow River ◽  
Index Set ◽  
Main Factors ◽  
River Embankment

Constructing a scientific, reasonable, all-encompassing, and representative-strong index system is an important premise and guarantee for the good embankment-safety-evaluation of Yellow River. Therefore, the embankment safety-influencing-factor identification has been raised based on consequence-reverse-diffusion method, which can be used to seek the main factors leading to accidents by reverse-thinking and reverse-diffusion way. The main factors which lead to the embankment accident shall be found out according to the accident form, then spreading to the specific influence-factor. As a result, the author has made a classification and extraction for the identified safety-influence-factors, and constructed the optional index-set and index-system for the Yellow River embankment-safety-evaluation after analyzing the content of the safety-influence-factors, which has laid a solid foundation for further embankment safety assessment for the Yellow River embankment construction.

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