Grout Placement Operations
This chapter discusses grout placement operations. The procedures for drilling, proportioning and mixing, and injection used in underground grouting are basically the same as those employed...
Coastal Benefits and Impacts of Dismantling Matilija Dam
A numerical shoreline evolution model was used to examine the shoreline changes associated with the release of 2.3 million cubic meters of beach quality sediment from behind Matilija Dam....
Applicability of Scour Equations in Tidal Areas
Bridge scour and waterway instability in the coastal region where waterways are subjected to tidal flow can be subjected to mass density stratification, water salinity, sedimentation...
Geochemical Modeling of Lead in Vadose Zone
In recent years, researchers have used multicomponent reactive transport models to study the mobility of potentially toxic heavy metals in the subsurface. In this study, such a mathematical...
A Screening Level Model for Estimation of Vadose Zone Leaching and Saturated Zone Mixing: VLEACHSM
A screening level computer model has been developed for the evaluation of pollutant migration through the vadose zone and subsequent mixing within the saturated zone. The model, called...
Hysteresis Effect of Karst Vadose Zone in Spring Kr5, Mt. Kr?uterin, Austria
Hysteresis effect is considerable in Spring Kr5, involving a chain of processes of recharge-infiltration-discharge. The lag time of each process to another can be briefly summarized and...
CHEMFLO Modeling of Aquifer Bioremediation in Vadose Zone
This paper deals with bioremediation in the vadose zone with an emphasis on using numerical models as a tool to ensure that the concentration of nutrients is maintained at a required level....
Coastal Dynamics '95
Demands to both utilize and preserve the beaches of the world require improved understanding of the underlying dynamics of the coast, as well as better modeling capabilities. To these...
Coastal Groins and Nearshore Breakwaters
Technical Engineering and Design Guides, as adapted from the U.S. Army Corps of Engineers No. 6. This book provides guidance for the design and placement...
Flood Control vs. Flood Management
For the last 130 years, flood policy in the U.S. has been dominated by the belief that floods can be controlled by structural methods, such as levees, dikes and embankments. These efforts...
Groundwater Development and Related Issues
Optimum development and management of ground water resources requires consideration of all elements of the groundwater system and their inter-relations with total hydrologic cycle along...
Coastal Dynamics `94
During the past decade, numerical models of coastal dynamics have provided far more information than could be validated with field and laboratory measurements. Lack of data has restricted...
Medium Classic Rail Traffic: How to Forecast the New High Speed Rail Traffic
This paper describes the current situation of the transport flows by modes in the international relations between Spain and the rest of Europe. Explains the geographic zoning adopted for...
Local, State and Federal Approvals in Developing High Speed Rail Systems in the U.S.
The implementation of high speed ground transportation systems in the United States will require numerous reviews and approvals at the local, state and federal levels. It is important...
The Northern Coast of the State of Rio De Janeiro
This work presents a general characterization of a portion of the coastline of the State of Rio de Janeiro, based on observations made between 1988 and 1992, as part of Littoral Rio project....
Argentine Deltas Morphology
Only two deltas are located along the Argentine coast, both of them at Buenos Aires state. The northern one is the Parana Delta at the Rio de La Plata estuary (34.99' Lat. Sur) and the...
The Economics of Managing Coastal Erosion
In the race to develop prime coastal land, many structures have been built in high hazard areas which are prone to coastal erosion. In a real sense, erosion is not generally viewed to...
Managing Beach Erosion in Fortaleza, Brazil
The littoral of the metropolitan region of Fortaleza City, State of Ceara in the Northeastern part of Brazil, has suffered significant morphological changes during this century. There...
Historical Shoreline Position Change for the Mainland Beach in Harrison County, Mississippi
Historical shoreline position change (1851/52 to 1986) associated with the mainland beach in Harrison County, Mississippi, are controlled by engineering activities associated with beach...
Oil in the Intertidal and Subtidal Sediment of the Saudi Arabian Coast One Year After the Gulf War Oil Spill
One year after the Gulf War oil spill, studies were conducted on the distribution and fate of oil in intertidal and shallow, subtidal habitats along the Saudi Arabian cost. These studies...
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