Article

RepairInternational2006 Outstanding International Project: Reform and Expansion of Bridgetown Port

Bridgetown Port

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The Port of Bridgetown on the island of Barbados was originally constructed in the early 1960s and expanded in the mid-1970s

Article

UndergroundInternationalA Report from the ITA Working Group on Shotcrete Use

Tarcisio Celestino and Atsumu Ishida

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Working Group 12, Shotcrete Use of the International Tunneling and Underground Space Association (ITA) was established in 1989.

Article

RepairInternationalShotcrete Repairs—the Main Development Trend in Poland

Wlodzimierz Majchrzak, Wlodzimierz Czajka, and Zdzislaw Jurek

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The shotcrete method first appeared in Poland in the 1930s.

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UndergroundInternationalFreeport’s New Barmac Delivers High-Quality Shotcrete Sand

Stacy Goldsworthy and Samuel Hewitt

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In November 1936, during a climbing expedition to the glacier-capped peaks of central New Guinea, Dutch Petroleum Geologist Jean Jaques Dozy discovered a massive copper mineralized outcrop

Article

StructuralInternationalSlope Stabilization Using the Shotcrete Grid Beam System in Japan

Yuji Samaru and Koji Sugiyama

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Continuous grid beam structures made of shotcrete have been used for over 30 years in Japan to stabilize natural and man-made cut slopes. This slope stabilization structure, generally called œGrid Beam, is widely applied in Japan. It was used in more than 4600 slope stabilization

Article

UndergroundInternationalThe Use of Macro-Synthetic Fiber-Reinforced Shotcrete in Australia

Matthew J. K. Clements and E. Stefan Bernard

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Macro-synthetic ber-reinforced shotcrete (SnFRS) has rapidly gained popularity in Australia over the past 5 years. This can be attributed mainly to the huge improvement in post-crack performance that has been demonstrated over recent years and the almost universal adoption of this material for ground support

Article

UndergroundInternationalShotcrete for Underground Support IX

Dudley R. Morgan

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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

Article

UndergroundInternationalSissach’s Saved by a Bypass

Daniel Herzog

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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

Article

UndergroundInternationalShotcreting in Australian Underground Mines: A Decade of Rapid Improvement

Matthew Clements

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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

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RepairArchitecturalInternationalArtistic Shotcrete for a Historic Auditorium

Hans Hasler, Pietro Teichert, and Dudley R. Morgan

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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.