Preventing the Underground Movement of Methane from Sanitary Landfills
Alternatives for controlling methane gas migration from sanitary landfills are evaluated. The conditions leading to explosions and fires from concentrations of methane are discussed. Advantages...
Field Control Replaces Design Conservation At World's Largest Underground Powerhouse
The excavation of 16,000,000 yd� of rock at LG-2, part of the La Grande hydropower project in Canada, has been completed. The world's largest underground powerhouse, with...
Epoxies � Miracle Materials Don't Always Give Miracle Results
In civil engineering applications, in the past 15 years epoxies have become widely used and have given excellent performance in floor surfacing, corrosion protection, repair of cracked...
Big Thompson Flood Exposes Need for Better Flood Reaction System to Save Lives
The actions people took in response to warnings of disaster in the Big Thompson flood of 1976 affected their chances for survival. No one who climbed the side of the canyon was killed...
Bypassing Sand at Coastal Inlets
To reduce dredging requirements and to provide calm navigation channels, the U.S. Corps of Engineers often constructs jetties and breakwaters. These structures block sand drifting along...
Dam Anchored to Foundation to Withstand Floods
Federal Power Commission Order No. 315 required a safety review of Conowingo Dam and Powerhouse by an independent board of consultants. As recommended by this board, a study was made of...
Retaining Walls: Taking It From The Top
Since 1958, fully anchored curtain walls have been used increasingly to retain slopes in Brazil where topographic, climatic, and geologic conditions are extremely favorable to landsliding...
Second Hampton Bridge-Tunnel Complete
The second Hampton Roads bridge-tunnel, which cost $96,000,000, opened to traffic on June 3, 1976. It is a two-lane facility carrying traffic across 3.5 miles of water between Hampton...
Stadium Seats Slide on Water
In Denver, a unique 21,000 seat, 9-million pound movable stand is used to convert the Denver Mile High Stadium from baseball to football or soccer. The stands are lifted and move on 163-forty...
Reef Runway is First in Airport Design
The Reef Runway Project of Honolulu International Airport constructed on a coral reef, provides approximately 765 acres of new land for the 12,000-ft-long runway with its associated taxiways...
Mechanization Speeds Limestone Production
The Dravo Lime Company's limestone mine and processing facility was nominated for an Outstanding Civil Engineering Award because it is a well-planned and executed construction...
Citizen Participation for Successful Village Water Supply
In developing nations, two keys to the success of village water supply projects are citizen planning and the use of the appropriate technology. The two are related. Involvement of citizens...
Cofferdams�Economical Flood Protection
Houston Lighting and Power Co. Sam Bertron Generating Station, located on the Houston Ship Channel, had suffered a drop in elevation of 7.5 ft since its construction in 1954. At such a...
Reliability and Limit States Approaches to Design
Increasingly, designers of structures and other civil engineering projects will be designing in these ways. What is the reliability approach? It is based in part on the fact that the magnitude...
Chevrolet Raises the Roof
Chevrolet's Gear and Axle plants in Detroit needed more space so a decision to renovate the 60-yr old structures rather than relocate the operation was made. New roof structures...
Prefab Structural Components Solve Expansion Problem
Another story was added onto an existing low-rise building, where soil strength was so low that the new floor had to be built by sinking new columns down to a sounder stratum, placing...
Drexel Students Build Space Frame as Senior Project
Drexel University's geodesic tri-span is an open-air monumental structure conceived, designed, fabricated and constructed by a group of senior civil engineering students to...
Germany, Belgium and Los Angeles have Mandatory Design Review for Major Structures
The report of the engineering investigation into the causes of the collapse of the Hartford Coliseum space truss cited design deficiencies as the cause of failure. That report also says...
Subway Designs and Construction Methods That Cut Costs
The high cost of subway construction in the United States can be reduced by adopting station and track structure configurations, structural systems, and construction techniques best suited...
Gophers Go Underground
A major facility, Williamson Hall, was constructed to be almost entirely below grade on the East Bank Campus of the University of Minnesota. Heating and cooling energy requirements will...
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