Zone of Intrusion for Permanent 9.1-degree Single-slope Concrete Barriers
Author : Cale J. Stolle
Publisher :
Page : 176 pages
File Size : 25,12 MB
Release : 2014
Category : Roads
ISBN :
Author : Cale J. Stolle
Publisher :
Page : 176 pages
File Size : 25,12 MB
Release : 2014
Category : Roads
ISBN :
Author :
Publisher :
Page : 194 pages
File Size : 22,38 MB
Release : 2010
Category : Roads
ISBN :
Author : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety
Publisher :
Page : 560 pages
File Size : 15,33 MB
Release : 1989
Category : Roads
ISBN :
Author : Malcolm H. Ray
Publisher :
Page : 116 pages
File Size : 14,13 MB
Release : 2018
Category : Bridges
ISBN :
Author : Jacob Bear
Publisher : Springer Science & Business Media
Page : 652 pages
File Size : 25,57 MB
Release : 2013-03-09
Category : Science
ISBN : 9401729697
Coastal aquifers serve as major sources for freshwater supply in many countries around the world, especially in arid and semi-arid zones. Many coastal areas are also heavily urbanized, a fact that makes the need for freshwater even more acute. Coastal aquifers are highly sensitive to disturbances. Inappropriate management of a coastal aquifer may lead to its destruction as a source for freshwater much earlier than other aquifers which are not connected to the sea. The reason is the threat of seawater intrusion. In many coastal aquifers, intrusion of seawater has become one of the major constraints imposed on groundwater utilization. As sea water intrusion progresses, existing pumping wells, especially those close to the coast, become saline and have to be abandoned. Also, the area above the intruding seawater wedge is lost as a source of natural replenishment to the aquifer. Despite the importance of this subject, so far there does not exist a book that integrates our present knowledge of seawater intrusion, its occurrences, physical mechanism, chemistry, exploration by geo physical and geochemical techniques, conceptual and mathematical modeling, analytical and numerical solution methods, engineering measures of combating seawater intrusion, management strategies, and experience learned from case studies. By presenting this fairly comprehensive volume on the state-of-the-art of knowledge and ex perience on saltwater intrusion, we hoped to transfer this body of knowledge to the geologists, hydrologists, hydraulic engineers, water resources planners, managers, and governmental policy makers, who are engaged in the sustainable development of coastal fresh ground water resources.
Author : National Research Council
Publisher : National Academies Press
Page : 135 pages
File Size : 23,8 MB
Release : 2007-09-22
Category : Science
ISBN : 0309108098
President Carter's 1980 declaration of a state of emergency at Love Canal, New York, recognized that residents' health had been affected by nearby chemical waste sites. The Resource Conservation and Recovery Act, enacted in 1976, ushered in a new era of waste management disposal designed to protect the public from harm. It required that modern waste containment systems use "engineered" barriers designed to isolate hazardous and toxic wastes and prevent them from seeping into the environment. These containment systems are now employed at thousands of waste sites around the United States, and their effectiveness must be continually monitored. Assessment of the Performance of Engineered Waste Containment Barriers assesses the performance of waste containment barriers to date. Existing data suggest that waste containment systems with liners and covers, when constructed and maintained in accordance with current regulations, are performing well thus far. However, they have not been in existence long enough to assess long-term (postclosure) performance, which may extend for hundreds of years. The book makes recommendations on how to improve future assessments and increase confidence in predictions of barrier system performance which will be of interest to policy makers, environmental interest groups, industrial waste producers, and industrial waste management industry.
Author : American Water Works Association
Publisher : American Water Works Association
Page : 286 pages
File Size : 44,30 MB
Release : 2008
Category : Science
ISBN : 1583215492
This comprehensive manual of water supply practices explains the design, selection, specification, installation, transportation, and pressure testing of concrete pressure pipes in potable water service.
Author : James E. Bryden
Publisher : Transportation Research Board
Page : 131 pages
File Size : 47,6 MB
Release : 2002
Category : Automobile driving at night
ISBN : 0309067650
Author : American Association of State Highway and Transportation Officials
Publisher : AASHTO
Page : 275 pages
File Size : 30,38 MB
Release : 2009
Category : Social Science
ISBN : 1560514167
Author :
Publisher :
Page : 344 pages
File Size : 19,67 MB
Release : 1992
Category : Technology & Engineering
ISBN :