DYWIDAG Rock Bolts

References

 

Permanent DYWIDAG Strand Anchors and Hollow Bolt Anchors secure rockfall in Austria

Client Authority of the Carinthian State Government, Department 17W, Klagenfurt, Carinthia, Austria +++ General Contractor Firma STRABAG AG, Division 33, Rock Technology, Ing. Adolf Astner, Spittal/Drau, Carinthia, Austria +++ Design Engineering Office Dr.Ernst Garber - Dr.Jörg Dalmatiner, Villach + Graz, Austria +++ Surveying Civil geometer Dipl.-Ing. Rudolf Missoni, Spittal/Drau, Carinthia, Austria
DSI Unit DSI Austria, Salzburg, Austria
DSI Services Technical assistance and delivery of about 1,350 permanent DYWIDAG Strand Anchors and about 500 m DYWI ® Drill Anchors with accessories, GEWI ® Rock Bolts; Stressing of permanent DYWIDAG Anchors and rental of technical equipment

 

Economical solution for tunnel ground support - DSI prepared to adapt roof bolt system to changing ground conditions

Owner City of Atlanta, Georgia, USA +++ Design Engineer Jordan Jones & Goulding, Atlanta, Georgia, USA +++ General Contractor Nancy Creek Constructors, Atlanta, Georgia, USA
DSI Units DSI Ground Support, Salt Lake City, UT, USA
DSI Services Preparing of technical specifications for general contractor; Supply of expansion shell bolts; Pull testing and on-site technical assistance

 

DYWIDAG rock bolts in California's largest water project

Owner Metropolitan Water District of Southern California (MWDSC) +++ Consultant Ebasco Team, a Joint Venture between Black&Veatch and Woodward Clyde +++ General Contractor Joint Venture of Atkinson Construction, Washington Construction and H.B. Zachary
DSI Services Supply of DYWIDAG rock bolts dia. 25mm, St 500/550 and dia. 26,5mm, St 835/1030; Supply of equipment; Technical support on site .

 

Historic fort straddles modern cavern development

Owner The States of Jersey Public Services Department +++ Main Contractor The States of Jersey Public Services Department +++ Cavern Excavation designers Geo-Engineering (Jersey)
DSI Services Supply of 4000 epoxy coated DYWIDAG rock bolts dia. 25mm/26,5mm; Supply of 1,350 DYWIDAG Permanent Factory Pre-grouted Rock Anchors dia. 32mm; Supply of 1,100 steel spider.

 

Innovative solution using DYWIDAG Rock Bolts for cavern construction in India

Owner Jaiprakash Industries Limited, New Delhi, India +++ General Contractor Jaiprakash Industries Limited, New Delhi, India +++ Consultant Lahmeyer International GmbH, Bad Vilbel, Germany
DSI Services Supply of a total of 7,720 DYWIDAG Rock Bolts in single section lengths between 6 and 10 meters; Technical support.

 

Paramatta Rail Link Tunnel in NSW, Australia

Owner State Rail Authority, Rail Infrastructure Corporation and NSW Government, Australia +++ Main Contractor Thiess Hochtief Joint Venture, Sydney, Australia+++ Consulting Engineers Gutteridge Haskins & Davey Pty Ltd., Sydney, Australia; Parsons Brinkerhoff Australia Pty Ltd., Sydney, Australia
DSI Services Supply of 50,000 rock bolts, resins and accessories; supply of 500 steelring sets

 

Lesotho Highlands Project, Lesotho, South Africa

Owner Lesotho Highlands Development Authority (LHDA) +++ Design Lesotho Highlands Contractors, a JV consisting of: Spie Batignolles, Balfour & Beatty Ltd., Campenon Bernard SGE, LTA Ltd. and Ed. Züblin AG
DSI Services 320,000 pieces of hot dip galvanized rock bolts Ø 25mm.

 

DYWIDAG Rock Bolts for roof support in German salt mines

Owner Kali & Salz AG, Kassel, Germany
DSI Services 1 million Ø 16 mm, grade 450/700 DYWIDAG Rock Bolts with expansion shells per year