The Evaluation of Dam Safety
Proceedings of the Engineering Foundation Conference on the Evaluation of Dam Safety, held in the Asilomar Conference Grounds, Pacific Grove, California, November 28 December 3, 1976....
Concentric Waste-Treatment Plant Saves Land
An activated-sludge treatment plant in Camden, N.Y. has several innovations: the principal one is the use of concentric tanks�� as distinct from the usual way of having separate, isolated...
Plastic Filter Fabrics Have Bright Future
There are thousands of existing installations using filter fabrics in North America and additional thousands in Europe, most built in the past 10 years. The momentum is gathering. Filter...
Paul Bunyan Among Offshore Steel Structures
The world's two largest drydocks, the larger 1,150 x 800 ft in plan were used to assemble on land the four steel jackets. They now stand in the North Sea in about 400-ft of...
Inverted Filter Stabilizes Soil, Stops Erosion
The inverted filter concept was invented by Karl Terzaghi to prevent dams from failing by water piping through the foundation. Laboratory and field testing have refined the necessary specifications...
Gabions, Perforated Pipe and Gravel Serve as Fish Screens
A type of structure to prevent juvenile salmon from diverting to irrigation ditches has been developed on the Merced River in central California. It was built after cost considerations...
Structural Failures and How to Prevent Them
Reducing failures of buildings and other structures requires compentent design; clear communication of that design to the contractor by means of engineering drawings, etc.; careful and...
Polyethylene Pipe Solutions to Sewer Outfalls
One of the primary concerns of the Chief of Naval Operations is to insure that environmental pollution standards are met in this country and abroad at those naval bases near oceans or...
Experts Critique the Olympic Structures of Montreal
At a panel discussion held recently in Montreal, a number of prominent architects and engineers critiqued the Montreal Olympic structures. Unlike some previous press reports, the blame...
Designing More Reliable Waste Treatment Plants
In the past, many municipal waste treatment plants have not operated reliably. A 1969 Federal Water Pollution Control Administration Study, for instance, showed that 25% of 1500 plants...
Civil Engineering History Gives Valuable Lessons
Many students, and others, feel the study of engineering history is a frill. Not so, this article suggests. A study of the past can give an engineer better ideas on how to solve a new...
Short Span Bridges
Short span bridges, seemingly simple and innocuous structures, in fact embody many interesting problems and developments: The need to replace hundreds of thousands of bridges (safety and...
Difficult Dam Problems - - Cofferdam Failure
Uniontown Locks and Dam on the Ohio River was under construction when the cofferdam failed ten days after being dewatered during a rising river period. The configuration of the failure...
A Fail-Safe Subaqueous Concrete Sewer
Describes the design and installation of a unique, tri-gasketed 87-in. (2210 mm) diameter reinforced concrete sewer force main. The total system is approximately 14,000 ft (4,300 m) long,...
Bailey's Crossroads: A/E Liability Test
In March 1973, a 24-story reinforced concrete building under construction at Bailey's Crossroads, Va., partially collapsed causing a total collapse of an adjoining parking...
Pipeline Design for Water and Wastewater
Lessons from Dam Incidents, USA
This report is primarily concerned with failures, accidents, damage during construction, and major repairs relating to dams in the USA. The purpose of this report is to present available...
Structural Design of Nuclear Plant Facilities 1973
Proceedings of the Specialty Conference on Structural Design of Nuclear Facilities, held in Chicago, Illinois, December 17-18, 1973. Sponsored by the Nuclear Structures and Materials Committee...
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