LAX Takes Flight for the 1984 Olympics
LAX (the Los Angeles airport) had over two dozen contractors working on site to complete their $700 million improvement plan in time for the Olympics in July. They also came up with several...
Hydro Power
The Kerckhoff 2 Hydroelectric Power Projects adds 140 MW to the capacity of the San Francisco area's Pacific Gas & Electric system. No new dam was needed; only a 4-mile...
Dredge Spoil Disposal Predictions and Performance: A Case History
A 146-acre dredge spoil disposal facility was constructed in Baltimore Harbor that received 3. 4 million cubic yards (2. 6 million cubic meters) of dredge spoil generated from construction...
Current Issues in Rock Dredging
An attractive alternative to the use of explosives for deepening shipping channels is the improvement of the rock cutter suction dredger. But, assessing the capability and design parameters...
Operation of Glen Canyon Dam Spillways--Summer 1983
Flood control at Glen Canyon Dam is provided by a 41-ft (12. 5-m) diameter tunnel spillway in each abutment. Each spillway is designed to pass 138,000 ft**3/sec (3907. 7 m**3/sec). The...
Modeling Aeration Devices for Glen Canyon Dam
The 41-ft (12. 5-m) diameter tunnel spillways at Glen Canyon Dam experienced major damage during the 1983 spring runoff. This damage was initiated by cavitation. Hydraulic model studies...
Cavitation Inception from Cylindrical Holes
The inception of cavitation due to circular holes in a boundary is studied. Laboratory experiments were conducted to define limited cavitation as a function of the hole depth to diameter...
Alternative Layouts for Hydro Headrace Tunnels
The recent development of tunnel boring machines capable of excavating hard rock at virtually any grade together with the Norwegian experience in compressed air surge tanks provides the...
Afloat on the China Sea
In the summer of 1982, the Science and Technology Commission of the People's Republic of China invited four United States tunnel experts to come to China to engage in technical...
Lining Tunnels: Toughest Concreting Job?
Concrete linings for water supply tunnels must resist sulphate and other chemical attack, not contribute pollutants to the water it is carrying, and not leak for its design life, which...
Cold Regions Engineering in Norway
The use of insulating materials is a key factor in cold regions engineering in Norway. It is applied in road construction in areas where frost heave and reduced bearing capacity would...
Bloomington Lake�Potomac River Water Resources Project
The recently completed $174 million Bloomington Lake project has improved flood control and water quality to the benefit of millions of people downstream. The headwaters of the Potomac...
Fiber Reinforced Concrete
In the past 10 years or so, concrete reinforced with fibers one or two inches long has begun to be used, first on a demonstration and experimental basis, then in major everyday applications....
Shanghai Tunnel Projects Spur Construction Innovations
Since underground construction in soft ground is newly developed in Shanghai, there is little experience there as compared to what is known for specific sites in other countires. Well...
Japanese Tunnel Design: Lessons for the U.S.
The Japanese construction industry has a great deal to offer regarding designs, methods, and procedures that can efficiently overcome the tough physical and environmental constraints encountered...
Geotechnical Research Needs
A National Science Foundation-ASCE workshop on research needs looked at, among other subfields, geotechnical engineering. The study identified a number of research needs�based on society's...
Some Ideas for Reducing Subway Construction Costs
This article presents the conclusions of a major study made during the past few years of both U.S. and European practices in building subways. Among the key conclusions: Planners and designers...
Tarbela Dam�Problems Solved by Novel Concretes
While constructing the world's largest embankment dam, Tarbela in Pakistan, the designers and contractors faced unprecedented flow volumes and velocities, causing severe cavitation...
Faults in Swedish and American Tunnel Practice: A Fable
Swedish and American practices in dealing with unanticipated geological conditions encountered during tunnel construction are contrasted. Swedish practice, illustrated with an actual example,...
Construction Risk: Who Pays�
A report is given on the January 1979 Construction Risk and Liability Sharing Conference sponsored by ASCE's Construction Division Committees on Contract Administration and...
Return to search