StructuralShotcrete Retrofil of a Mechanically Stabilized Earth Wall
Roland Heere, Dudley R Morgan, Stephen Jungaro
Read MoreThe Municipality of Maple Ridge in British Columbia, Canada, commissioned a spe-cialty contractor to build a 9 m (29.5 ft)diameter culvert, incorporated in a mechanically stabilized earth (MSE) wall, to provide a street crossing for a stream. The culvert had been partly sunk into the
StructuralSetting the Standard with Soil Nail Technologies
Dino Kartofi lis and Gary Corwin
Read MoreNicholson Construction Company was awarded the con- tract to build a reinforced shotcrete soil nail retaining wall along State Route 9900 in Blair County, Penn-sylvania (U.S.). The 330-ft-(100-m)-long, 35-foot-(10.7-m)-high permanent retaining wall was cut into the hillside to provide an access route to the new
StructuralSoil Nailing is Designed to Fit
Marcus H. von der Hofen
Read MoreSoil nailing has become a popular method to shore exca-vations and to build retaining walls due to its versatility and cost effectiveness. Generally broken into two cat-egories, temporary and permanent ground retention systems, soil nailing has evolved into many variations. A range of dif-ferent means
RepairStructuralDesigning and Installing a Shotcrete Strengthening Application on the Spokane Street Bridge
Basil Kattula and Roger Runacres
Read MoreThe Spokane Steet Bridge connects the community of West Seattle to downtown via Highway 99 and Interstate south of the city center. The bridge was not originally and constructed to handle is present-day usage consequently.
UndergroundStructuralInternationalShotcrete for Underground Support
Dr. Rusty Morgan
Read MoreIn November 1999 I had the opportunity to attend the Third International Symposium on Sprayed Concrete for Underground Support.
StructuralSlope Reinforcement using Shotcrete in Arizona
American Shotcrete Association
Read MoreWith more than 7,000 cubic yards (5,350 m3) of shotcrete to be used for slope reinforcement in the MesaÂPayson Highway expansion in Arizona, it may be the biggest shotcrete application in the country. The project consists of shotcreting thirteen freshly-cut mountainsides in the Kitty Joe
RepairStructuralNew Mixture Design and Guide Specifications and Inspector’s Manual
Bruce Johnson
Read MoreShotcrete has not traditionally been a material of choice for repair of bridge structures by many state highway departments. One reason for this is that bridge engineers have not been aware of advances in the quality and durability possible with high-performance shotcrete over the last
StructuralInternationalApplication and Testing of Shotcrete
Wolfgang Kusterle
Read MoreIn 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
Read MoreAn1amina 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
UndergroundStructuralThe Use of Steel Fiber-Reinforced Shotcrete for the Support of Mine Openings
Marc Vandewalle
Read MoreWhat separates the support of mining openÂings from the support of similar civil engineering structures is the fact that mine openings have to survive large defonnations as a result of changing stress conditions induced by progressive mining. Steel fibers impart to concrete and shotcrete a