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McMURRAY, PA 15317
PHONE: (724) 942.4670
FAX: (724) 942.4671



International Manufacturer’s Representative Services


Specializing In


Tunnel & Mine Construction Applications


Below you will find a list of the various products and services that we provide to the North American tunneling market. This list can also be downloaded here. If you have any questions, please do not hesitate to contact us at the address listed below.


1. Precast Concrete Segmental Tunnel Lining Manufacturing Components


         1.1        Gasket Sealing Systems


                     CTS Cordes Tubes & Seals GmbH & Co. KG, Boizenbug, Germany




                     1.1.1     Standard EPDM Gaskets

                     1.1.2     Anchored EPDM Gaskets (No Adhesive Required)

                     1.1.3     Special Gasket Materials For Hydrocarbons

                     1.1.4     Hydrophilic Gasket Profiles      

                     1.1.5     TBM Tunnel Starter Seals


         1.2        Connection/Grouting Systems


                     Optimas, Sofrasar Tunnel Products, Sarreguemines, France




1.2.1     Steel Bolts With Plastic Sockets - Up To 38 mm Ø
1.2.2     Steel Bolts With Steel Sockets - Up To 38 mm Ø
1.2.3     Grout/Lifting Insert Assemblies Inclusive Of: Non-Return Valves Up To 10 Bar Resistance Sealing Screw Caps Up To 40 Bar Resistance Hydrophilic External O-Ring Seals


                     1.2.4     Plastic Dowels For Circumferential Joint Connections Sof-Fix FD – 40kN Pull-Out & 60kN Shear for small dia. tunnels Sof-Fix Anix – Up To 200kN Pull-Out & 200kN Shear Resistance 

                         Bicones – Up to 500kN Shear


                     1.2.5     Radial Joint Connection Systems


                         Guide Rods – Up To 60mm Ø   


         1.3        Steel Moulds & Production Systems


                     Herrenknecht Formwork Technology, Schwanau, Germany         




1.3.1     Precision Steel Moulds For Casting Precast Segments
1.3.2     Carousel Plant Casting Systems Inclusive Of:


                         Plant Layout And Design                                            
                         Concrete Handling And Vibrating Equipment
                         Segment Curing Systems
                         Segment De-moulding And Rollover Equipment
                         Gasket Application Equipment



2. Tunnel Reinforcement Products


         2.1        Steel Rebar Reinforcement


2.1.1     Standard Fabricated Rebar Gr. 60 – 75 A625
2.1.2     Prefabricated Rebar Panels Gr. 60 - 75 A706
2.1.3     Special Rebar Reinforcement Stainless Steel Bar FRP Bar – For Tunnel Breakout Areas Epoxy Coated Bar


         2.2        Welded Wire Fabric Reinforcement


2.2.1     Standard Welded Wire Fabric 4"x 4", 6"x6" W2.1 – W4.0
2.2.2     Specialty Welded Wire Fabric Up to D36.0, Wire Spacing as Required
2.2.3     Supplied in Engineered Sheet Size to Minimize Waste Supplied Flat Supplied Prebent To Specified Radius


                     2.2.4     FRP Welded Wire Fabric


         2.3        Steel Fiber Reinforcement


                     Kosteel Bundrex




                     2.3.1     Precast Segmental Lining Reinforcement


                         Glued Fiber

                         Loose Fiber


                     2.3.2     Tunnel Final Lining Applications


                     2.3.3     Shotcrete Reinforcement



3. Rock Bolting and Anchoring Systems


         FiReP Rebar AG, Rapperswil, Switzerland




         3.1        FRP (Fiber Reinforced Polymer) Rock Bolts


3.1.1     Solid FRP Bolts – Available in 18 – 50 mm Ø
3.1.2     Self-Drilling Grouted FRP Bolts


         3.2        FRP Accessories


3.2.1     FRP & Steel Nuts
3.2.2     FRP, Plastic, & Steel Bearing Plates
3.2.3     Spinning Tools & Grout Adapters


         3.3        Anchoring Materials 


3.3.1     Polyester Cartridges For Solid FRP Bolts
3.2.1     Cementitious Anchoring Grout For Self-Drilling Bolts



4. Steel Forming Systems For Tunnels and Shafts


         Euroform S.r.l., Gessate (MI) - Italy




         4.1        Steel Forms For Placement Of Tunnel/Shaft Final Linings


4.1.1     Running Tunnel Lining Forming Systems
4.1.2     Station And Tunnel Enlargement Forming Systems
4.1.3     Shaft Lining Forming Systems
4.1.4     Open Cut Tunnel Lining Forming Systems
4.1.5     Custom Designed Forming Systems Designed To Meet Specific Project Requirements

                     4.1.6     On-site Engineering Services/Consultation Available



5. Specialty Designer/Consultant for Tunnel Construction Systems


         Rowa Tunneling Logistics AG, Wangen, Switzerland




         5.1        TBM Back-up Systems


         5.2        Special Plants for Rock Support and Installation


5.2.1     Grout Injection Plants
5.2.2     Shotcrete Application Systems
5.2.3     Work Platforms in Tunnels & Shafts
5.2.4     Special Lifting Platforms
5.2.5     Ring Beam Erectors


         5.3        Logistics Systems for Supply and Muck Disposal


5.3.1     Transportation Systems
5.3.2     Rotary Dumps
5.3.3     Special Locomotives for Inclines or Declines
5.3.4     Special Cars for Muck, Grout, or Segments
5.3.5     Wireless or Cable Train Track Surveillance Systems


         5.4        Consulting & Engineering Services


5.4.1     Construction Procedures / Methods
5.4.2     Construction Cycle Review & Development
5.4.3     Productivity Evaluation & Calculations
5.4.4     Installation Planning & Start-up Consultation
5.4.5     Cost Development & Comparisons
5.4.6     Risk Management Services



6. Tunnel Support Systems – Steel


         6.1        Cold Rolled Structural Rings & Arch Supports


         6.2        Liner Plates For Tunnel & Shaft Construction


         6.3        Special Fabricated Steel Structures & Liners


         6.4        Lattice Girders For NATM Tunnel Construction


         6.5        Steel Lagging & Decking


         6.6        Corrugated Structural Plate Portal Canopies



7. Specialty Services


         7.1        Klug Construction Systems, LLC

                     D.R. Klug & Associates, Inc. is the exclusive marketing agent for Klug Construction Systems, LLC, a distributor of engineered reinforcement, geotechnical and support products used in underground heavy civil and mine construction projects.
Tel: 724-942-2450
Fax: 724-942-4671



8. Contact Information


David R. Klug, President
David R. Klug & Associates, Inc.
6000 Waterdam Plaza Drive
Suite 120
McMurray, PA 15317
Tel: 724-942-4670
Fax: 724-942-4671
Cell: 412-670-0263


Jonathan D. Klug, Vice President
David R. Klug & Associates, Inc.
6000 Waterdam Plaza Drive
Suite 120
McMurray, PA 15317
Tel: 724-942-4670
Fax: 724-942-4671
Cell: 304-281-4239