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Experimental Research on Backward Erosion Piping Progression
(MDPI, 2023-07-29)Internal erosion is caused by seepage body forces acting on the soil particles. One of the most dangerous modes of internal erosion at hydraulic structures is backward erosion piping, which usually initiates at the downstream ... -
Dam Incidents and Failures – Cases in the Czech Republic
(Sciendo, 2023-03-31)Dam incidents and failures mainly occur during extreme floods. In the Czech Republic (CR), large-scale regional floods were recorded in different regions in 1985, 1987, 1997, 2002, 2006, 2010, and 2013, while local floods ... -
Quantification of Groundwater Hazards Related to Fluvial Floods via Groundwater Flow Modelling: A Review
(MDPI, 2023-03-15)Flood-related issues include the impact of groundwater on flood protection measures and other subsurface structures in a protected area. At the same time, subsurface elements of flood protection structures may significantly ... -
Discharge coefficient, effective head and limit head in the Kindsvater-Shen formula for small discharges measured by thin-plate weirs with a triangular notch
(Institute of Hydrology of the Slovak Academy of Sciences, 2023-02-04)The paper deals with the determination of the discharge coefficient, effective head and newly the limit head in the Kindsvater-Shen formula for the determination of a relatively small discharge of clear water using a ... -
Influence of Rainfall Events and Surface Inclination on Overland and Subsurface Runoff Formation on Low-Permeable Soil
(MDPI, 2022-04-20)This paper presents the results of laboratory tests that allowed us to determine the effect of the soil surface inclination and its initial moisture content on the formation of overland and subsurface runoff. The experiments ... -
Multicriterial analysis used for the optimisation of dike system management
(Chartered Institution of Water and Environmental Management and John Wiley & Sons, 2022-05-20)Levees are the most frequently used flood protection measure worldwide. In central Europe, they have been built systematically since the beginning of the 19th century. After the extreme regional floods in 1997, 2002 and ... -
The application of a minimum specific energy concept for a fish ladder design
(Polish Academy of Sciences, 2022-05-13)Structural solutions in terms of fish ladders and the use of natural materials to construct them often raise concerns regarding the possibility of using the standard calculation methods. The fish ladder being designed on ... -
Investigation on the temperature of the asphalt-concrete facing of embankment dams
(Chinese Society of Pavement Engineering, 2016-01-12)Asphalt concrete is a traditional material used for the constructions of upstream sealing of reservoir dams, particularly in upper reservoirs of pumped storage hydroelectric plants. The asphalt layer is often exposed to ... -
Hydraulic design of storm water infiltration facility including uncertainties
(Mendel University in Brno, 2016-05-04)For a design of the volume of the rainfall infiltration facility, the coefficient of infiltration is determined by an infiltration test. The use of the coefficient of infiltration brings certain uncertainties into the ... -
Assessing the Impact of Lining Polluted Streams on Groundwater Quality: A Case Study of the Eastern Nile Delta Aquifer, Egypt.
(MDPI, 2021-06-20)In this study, we aim to evaluate the impact of the Bahr El Baqar drain system on groundwater quality in the Eastern Nile Delta, Egypt. MODFLOW was used to create a numerical model to simulate groundwater flow in an aquifer ... -
The Application of Cluster Analysis and Scaling Analysis Methods for the Assessment of Dams in Terms of Heritage Preservation
(Taylor & Francis, 2021-03-30)Heritage preservation is a broad topic that affects virtually all fields of human activity. One of them is industrial heritage which is, among others, represented by the construction of dams. The assessment of such ... -
A simple model for the estimation of the number of fatalities due to floods in central Europe
(Copernicus Publications, 2014-07-30)In this paper a model for the estimation of the number of potential fatalities is proposed based on data from 19 past floods in central Europe. First, the factors contributing to human losses during river floods are listed ... -
Study of Dam-break Due to Overtopping of Four Small Dams in the Czech Republic
(Mendel University in Brno, 2015-07-01)Dam-break due to overtopping is one of the most common types of embankment dam failures. During the floods in August 2002 in the Czech Republic, several small dams collapsed due to overtopping. In this paper, an analysis ... -
Citlivostní analýza vybraných vstupních parametrů numerického modelu HEC-RAS při hydraulických výpočtech proudění vody v korytech toků a záplavových územích
(VÚV TGM, 2021-04-19)Hydraulické výpočty proudění vody v korytech vodních toků a záplavových územích se v současné inženýrské praxi provádějí primárně s použitím 1D, 2D a spřažených 1D/2D numerických modelů. Matematický model je v případě ... -
Heat transfer by seepage in sand: Influence of saturated hydraulic conductivity and porosity
(University of Ljubljana, 2021-06-06)Heat transfer within the soil is a complex process in the presence of seepage flow. In such conditions, the soil’s thermal behavior is influenced by the thermal and hydraulic properties of the medium as well as the initial ... -
The influence of roughness on the discharge coefficient of a broad-crested weir
(Institute of Hydrology SAS, 2012-06-01)The use of environmentally-friendly materials in hydraulic engineering (e.g. the stone lining of weirs at levees) calls for the more accurate estimation of the discharge coefficient for broad-crested weirs with a rough ... -
Performance of a shallow-water model for simulating flow over trapezoidal broad-crested weirs
(VEDA, SLOVAK ACAD SCIENCES, 2019-12-19)Shallow-water models are standard for simulating flow in river systems during floods, including in the nearfield of sudden changes in the topography, where vertical flow contraction occurs such as in case of channel ... -
Unsteady Flow and River Bed Stratification Mutual Impact on Scour at the Abutments
(University of Split, 2020-04-08)The floods of different probability, sequence, frequency, duration, and the riverbed with different grain sizes, numbers, sequences, and thickness of the layers are one of the reasons for the bridge`s abutments failure ... -
Comparison of Hydraulic Conductivity Values Obtained from Empirical Formulae and Laboratory Experiments
(Mendel University in Brno, 2020-08-30)Hydraulic conductivity determination plays an essential role in the investigation of groundwater flow regime which can then influence many field problems such as pumping capabilities in the area, transport of contaminant ... -
The design of the technical flood protection measures on Svitava River, Czech Republic
(IOP Publishing, 2020-10-15)The paper present the design of the technical flood protection measures on Svitava River in Březová above Svitava town. The current state of the study area was evaluated and determined based on related documents available ...
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