International Portal

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.

InternationalRound Determinate Panel Testing in Australia

E. Stefan Bernard

Designers and contractors frequently encounter difficulties when using beams for the assessment of postcrack pcrfomumcc in fiber­reinforced shotcrcte (FRS). llie most conimon bea,n test used in Nonh Anierica is the ASTM C-1018 procedure (AST!vl 1997), although alternatives exist, including the Japanese SF-4 procedure (JSCE 1984)

UndergroundStructuralInternationalSteel Fiber Reinforced Shotcrete Replaces Cast Concrete Lining, World’s Longest Subsea Road Tunnel

Christine J. Hauck and John Peter Holtmon

The Northcape Tunnel in the Artic Circle in Norway was opened for traffic on June 15, 1999. The project is the longest subsea road tunneltunnel (6820 m or22,000 fl) in the world un1il 1999/ 2()0(). TheNorthcapc¢Tunnel is part of 1he FATIMA­Project, (he road connection from

UndergroundInternationalShotcrete Applications at Northparkes E26 Mine

Stephen Duffield, B.Sc.

Shotcrete was used extensively during construction of Northparkes E26 Underground Mine, Australia’s first block cave mine. Applications for the shotcrete included ground support, ground control, construction, safety, protection of equipment and remedial repairs. This article details the various uses for the 16,700 m3 (22,000 yd3)

UndergroundInternationalShotcrete for Underground Support in Brazil

Pedro Boscov

Shotcrete has been used in Brazil since the 1950s, mainly in minor works of slope stabilization and repairs in concrete structures. It was only in the 1960s that it started to be used in underground work. The Furnas Hydroelectric Project had some sections of its