Underpinning with Chemical Grout
During construction of Pittsburgh's new subway, it became necessary to protect the foundations of six downtown buildings. A detailed study of building foundation support options...
Sewers: Repairing Beats Replacing
Rehabilitating decaying sewers can be up to 70% less costly than replacing them. Yet most sewerage agencies wait until a pipe collapses before taking action, necessitating expensive emergency...
Grouting in Geotechnical Engineering
The 63 pages included in these proceedings came from 12 different countries and deal with the pertinent advances in grouting materials and technology that have occurred throughout the...
Classic Papers in Hydraulics
Fourteen papers representing basic contributions which made possible rapid advances in analytical techniques in hydraulic engineering are presented. The papers reflect state-of-the-art-...
Baltimore's Got the Subway Everyone Loves
Some of the innovations of Baltimore's 13.5-mile subway system are explored. The system, on which construction began in 1976, is under budget and on time. The first 7.5-mile...
Stopping Water with Chemical Grout
New chemical grouts are now available to repair sewer leaks, control groundwater movement, and stabilize incompetent soils. Some of these grouts came into being only after the American...
Sand to Sandstone: Foundation Strengthening with Chemical Grout
A large school in San Francisco, built in 1930, was in need of structural rehabilitation to eliminate earthquake hazards. Founded on loose, windblown fine sand, the footings were subject...
Modern Engineering Saves Troubled Dam
A badly deteriorated and potentially unsafe dam has been recycled. The 135-ft-high, 300-ft-long LaPrele Dam is a concrete slab-and-buttress structure. Its sloping face slab has leaked...
The Sinking of the Amsterdam Metro
Subway construction was not practical in Amsterdam, The Netherlands, until this new placement technique. Most of the buildings in Amsterdam rest on old, untreated wooden piles that would...
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