Geotechnical Design Over Karst. It's All About the Water
Karst is a type of topography which is formed over soluble rocks, such as limestone, dolomite, or gypsum. An irregular bedrock surface is typical of most karst areas, along with sinkholes,...

Karst-Related Sinkholes: Dynamic Compaction as an Effective Remediation Option
The paramount issue to address before constructing at sites underlain by karst topography is identification and remediation of sinkholes which exist close to the surface, and specifically...

On the New Waterfront
The Hoboken South Waterfront along the Hudson River is being relandscaped to create parks and streets on new and existing deck structures in a joint project of the city of Hoboken, New...

Surface Irrigation
Surface irrigation refers to a large group of irrigation methods in which water is distributed by gravity over the surface of the field. Water is typically introduced at the high point...

On the Texas Fast Track
When Texans do something, they do it big, and they do it fast. So it comes as no surprise that the second largest sports facility in the U.S., Texas International Raceway, is currently...

Analysis of Exceptional Meteorological Conditions on July and August in Conakry
Conakry is a zone that receives more precipitation than other countries in West Africa. Sometimes the quantity is more than 4,000 mm per year. Strong rainfalls are observed between July...

Development of Islandwide Groundwater Pollution Potential for Taiwan
Using the modified DRASTIC and existing and newly surveyed data, groundwater pollution potentials for all 10 groundwater basins in Taiwan were calculated on 2 km by 2 km grids. This paper...

Simulation of Catchment Response Using RC Network
This paper describes a simple physically-based distributed parameter hydrologic model of catchment response using a network of capacitors and resistors. The effect of topography is modeled...

Mapping History
Difficult, environmentally sensitive terrain combined with the fact that Canadian Western Natural Gas's new Banff pipeline will be laid in archaeologically rich ground posed a challenge...

Observations Related to the Use of the Sigma Coordinate Transformation for Estuarine and Coastal Modeling Studies
One of the common techniques used in application of time-dependent, three-dimensional models addressing estuarine and coastal environmental problems is the sigma coordinate transformation....

Plain flooding: near field and far field simulations
The paper deals with the problems met in the attempt of simulating the plain submersion produced by a levee breaking in the inertia dominated region (near field), scaling with the typical...

Free surface flow modelling on a complex topography
The aim of this paper is to describe the different construction stages and the validation of a free surface flow model on a complex topography. This model is based on the two dimensional...

Geometric Design Projects for Highways
An Introduction
This book provides an introduction to geometric design of highways by means of examaples and projects that emphasize basic specifications, approaches to preliminary route selection, alignment,...

The Singularity of Spanish Railway High Speed
The Madrid-Seville line has been the main target in many action programmes pursuing the improvement of its insufficient capacity. In 1987, the Government proposed a high speed line (250...

Patos Lagoon
Patos Lagoon is one of South America's most important lagoonal environments. There is a complex of basins, controlled by the coastal lagoons Mirim and Patos, whose salinity regime is influenced...

Mountainous Precipitation Estimation Using Multivariate Statistical Analysis and Geographic Information Systems
Using rotated principal component analysis (PCA), unique, orthogonal spatial patterns of daily and monthly precipitation on a well-instrumented, mountainous watershed in Idaho (USA) were...

Hydraulic Performance of a Flexible Curtain Used for Selective Withdrawal ? A Physical Model and Prototype Comparison
Reclamation (U.S. Bureau of Reclamation) studied a 1:120 scale undistorted density stratified physical model to develop a lightweight flexible curtain barrier that would control the outflow...

3D Hydrodynamic Model Validation Through Simulations of Dynamic Processes
Two test cases with idealized geometry and forcing functions were performed to validate a three dimensional hydrodynamic model for use in coastal waters. The tests involve the barotropic...

Wind Tunnel Modeling of Time-Dependent Drift Topography
The aeolian wind tunnel is a useful tool for investigating not only the saltation physics of wind-driven sand, soil or snow, but also for determining the time-dependent development of...

Coastal Dune Blowouts?Dynamics and Management Implications
New approaches to coastal dune management have been advocated recently, including dune grading and dune destabilization. A management concern in the case of destabilization involves the...

 

 

 

 

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