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,...
Design and Construction of Long-Span Metal Culverts
Long-span metal culverts are built of corrugated-metal plates bolted together. They have spans exceeding 15 ft. Principal applications include use as drainage structures, grade separations,...
Building Skyscrapers in Orbit
NASA plans to build a host of large structures (communications antennas, remote-sensing radiometers, solar power satellites, etc.) in space. Three ways to build them are: (1)Fabricate...
Best Ways to Dewater Dredged Material
Left to its own devices, fine-grained dredged material placed in confined disposal areas reaches an equilibrium water content near its Atterberg liquid limit. The high water content of...
Industry Upgrades Technician Training
Here is one example where regulations were imposed by industry�voluntarily. The Washington Area Council of Engineering Laboratories, Inc., developed a program to certify technicians testing...
Testing Concrete in Place
Although modern concrete construction has developed during the past 60 years, one aspect has remained essentially unchanged�the use of molded cylinders tested in compression to estimate...
Nuclear Testing of Utility Trench Backfill
For many years, Westchester County municipalities were resigned to the fact that compaction of utility trenches could not be done satisfactorily and that settlement and road failure would...
World's First Iron Bridge
In 1779, using a new man-made material, skilled English workmen built a single-span bridge of cast iron over a steep river gorge about 140 miles northwest of London. The result was a 424-ton...
Guide to Investigation of Structural Failures
This guide contains a broad range of instructions and suggestions regarding structural failures. Topics include failure causes by project type, failure causes by structural type, failure...
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...
EPA Proposes Far-Reaching Regulations for Reducing Synthetic Organics in Drinking Water
In late January, 1978, EPA proposed far-reaching regulations for reducing synthetic organic chemicals in drinking water, bringing about the most sweeping changes in the water-treatment...
Fatigue Cracking�Problem for Welded Steel Bridges
A recent problem with welded steel bridges is fatigue cracking at welded details. Fatigue cracks begin in small flaws or discontinuities at welded connections and grow to a critical size...
Rouen, France Water Treatment Plant Using Biological Activated Carbon
The la Chapelle drinking water treatment plant in Rouen, France was designed specifically to incorporate biological activated carbon (BAC). With many U.S. cities faced with the prospect...
Counteracting Chloride-Induced Damage to Bridge Decks with Latex and Plastic
Salt used to control ice causes deterioration of reinforced concrete bridge decks, but recent developments, though still somewhat expensive, can prevent deterioration of existing decks....
Coastal Controversies Abound at Record-Breaking Conclave
Coastal Zone '78 was the largest specialty conference ever held by the ASCE, drawing over 1,000 participants from a wide spectrum of professions that are involved in coastal...
Newark Airport Pilots Cost-Saving Runway Paving Concept
The NYC Met Section nominee for the 1978 Outstanding Civil Engineering Achievement Award was the expansion of Newark International Airport. The $200 million redevelopment included a new...
Rx for Drought: Pumping Plant to the Rescue
Designed and built by the East Bay Municipal District, the pumping plant built last year at Middle River, Calif. was not unusual in design. What was unusual was the speed with which it...
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...
Reliable Structural Weldments for Critical Service
Fracture control plans are considered in light of weldment rather than base material alone. Data are presented on the probability of base materials (i.e., plate) having adequate toughness...
Coping with City Shrinkage
Sooner or later, many of the older cities of the U.S. are going to have to face up to the fact their population and economic bases are shrinking. Many cities continue to display an easy...
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