International Portal

UndergroundInternationalShotcrete for Underground Support IX

Dudley R. Morgan

The Japan Tunnelling Association (JTA) and International Tunnelling Association (ITA) sponsored the Shotcrete for Underground Support IX Conference held in Kyoto, Japan, from November 17-20, 2002. It is a cooperative conference with the United Engineering Foundation, New York, which sponsored the previous eight conferences, the

UndergroundInternationalSissach’s Saved by a Bypass

Daniel Herzog

The small village of Sissach, near Basel, in Switzerland is one of the nicest Swiss villages in the country, but the serenity is plagued each rush hour by heavy commuter traffic. The solution was a bypass tunnel running through the Chienberg hill to the north

UndergroundInternationalShotcreting in Australian Underground Mines: A Decade of Rapid Improvement

Matthew Clements

Over the last decade, dramatic improvements in spraying technology have allowed shot-crete to become the first-choice ground support in many underground mines in Australia. Before 1994, only a very small amount of dry spray shotcrete was used. Since then, the increased use of wet-mix fiber-reinforced

RepairArchitecturalInternationalArtistic Shotcrete for a Historic Auditorium

Hans Hasler, Pietro Teichert, and Dudley R. Morgan

The Goetheanum (Fig. 1) in Dornach, near Basel, Switzerland, was constructed in the late 1920s from a design by Austrian social philosopher and œspiritual scientist Rudolf Steiner. This building represents the first use of reinforced concrete for monumental, sculptured forms.

StructuralInternationalShotcrete Meets the Challenge of Huge Water Project in Ecuador

Mary Jane Loevlie and Kristian Loevlie

Shotcrete Meets the Challenge of Huge Water Project in Ecuador replacing traditional œform-and-pour reinforced concrete construction methods with high-production shotcrete, the massive Trasvases Manabi Water Project in Ecuador was finished months ahead of schedule. Contractor Norberto Odebrecht, in conjunction with Shotcrete Technologies, Inc., of Idaho

ArchitecturalInternationalUnited Arab Emirates Project

Sean Lanham

UndergroundStructuralInternationalShotcrete for Underground Support

Dr. Rusty Morgan

In November 1999 I had the opportunity to attend the Third International Symposium on Sprayed Concrete for Underground Support.

StructuralInternationalApplication and Testing of Shotcrete

Wolfgang Kusterle

In 1989, the Austrian Concrete Society pub-lished a Guideline on Shotcrete that subse-quently served as a reference work and a contractual basis for shotcrete works in tunnel con-struction in Austria and abroad. Other standards,such as DIN 18551, focused more strongly on shotcrete for concrete repair

UndergroundStructuralInternationalShotcrete Red Hot in Peru

Hugo Armelin and Denis Blais

An1amina copper mine is a Sl.2 btltion projcc1 in lhe Andes Mountailh of Peru. The projeci. owned by Canadian mining gi3111S Norandll. J’cck and Rio Afgom, i.s one of the. single largest mining inveso:nents in 1be Americ:iô€€£ at this moment and oomprises the cons1ruction of

UndergroundStructuralInternationalMoab Khotsong Mine, A Mining Engineer’s Perspective on the Application of Steel Fiber Reinforced Wetcrete as a Support Medium in an Ultra Deep Level Mine, Part 1

Jon Buckley

A Mining Engineer’s perspective on the Application of Steel Fiber Reinforced Wetcrete as a Support Medium in an Ultra Deep Level Mine.