Frost Inducing Slides on Membrane-Lined Canal Slopes
Freezing beneath a polyvinyl chloride membrane lining caused water in the subgrade soil voids to migrate upward and to form thin ice lenses under the lining. During a spell of warm weather,...
Joint Usage of Utility and Transportation Corridors
The problems and experiences of engineers working on transportation corridors are explored through 12 papers presented at a conference of the ASCE Pipeline Division. Corridors involve...
Why Does the Public Resist High-Voltage Power Lines�
Why, in some instances, has the public reacted so strongly to the erection of high-voltage electric transmission lines (765,000 kV and up) across portions of the United States? Is there...
U.K. Tunnelling Costs Halved by Use of Unbolted Concrete Lining Segments
Britain now has more than 25 years experience in the development of precast tunnel linings, for tunnels in clay. These linings are expanded directly against the ground. Under suitable...
Controlling Tunnel-Lining Costs�Tips for Owners and Designers
Emphasis is placed on those aspects of design likely to lead to cost savings or the avoidance of unanticipated extra cost during construction. Tunnel lining design requires knowledge about...
High Voltage Transmission Lines: Pros and Cons
This article, written in response to a CE Engineering News item, puts into perspective some of the pros and cons of high voltage transmission lines (500 and 765-kV lines). Specific problems...
Precast Liners May Cut Tunnel Cost 25%
On the Bureau of Reclamation's Buckskin Mountain's Tunnel in Arizona, the low bid was for $58,000,000, about $21,000,000 less than the low bid for design using...
Impermeable Asphaltic Concrete Pond Liner
An impermeable dense hydraulic asphaltic concrete solar evaporation pond liner was developed by the Southern California Edison Co. for the Mohave Generating Station, Clark Co., Nevada....
The Le Grande Hydroelectric Development
The James Bay Hydroelectric Project, presently under construction in northern Quebec, is one of the world's largest energy developments. Four major powerhouses are planned...
Are Contractors Treated Fairly�
Too often, specifications and contracts are written vaguely. The contractor has to deal with many unknowns and unpredictable factors. What can be done to ease this situation and reduce...
Tough Pollution Laws Spur Use of Impermeable Liners
Consultants have increasingly been using flexible, synthetic linings for a variety of civil engineering applications. The U.S. Dept. of Agriculture has been using membranes to line irrigation...
Tunnel under Alps Uses New, Cost-Saving Lining Method
Contractors of the Tauerntunnel through the Alps, near Salzburg, Austria, encountered very bad geology�� heavily distorted, preloaded rock under an overburden up to 3,300 ft (1,000-m)...
Design and Construction of Steel Chimney Liners
This is believed to be the first book to be compiled and published on this subject, even though the steel liner is now the most widely used in fossil-fueled electric generating stations...
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