NAT 2014 Gears Up for LA

The North American Tunneling Conference (NAT) – North America’s largest tunneling event in 2013 – is heading to Los Angeles June 22-25 with the theme “Mission Possible.” The theme is especially relevant in Los Angeles, where social, environmental and political influences can sometimes present more challenges than the geology.

Los Angeles is currently in the midst of a building boom related to its subway system with three major projects in the works. LA Metro is building the projects through design-build contracting, to leverage the expertise of the tunnel contracting teams and accelerate schedule. The LA Metro expansion projects are made possible by the passage of Measure R – a voter-approved tax increase aimed at improving transportation in the greater Los Angeles area, which is notorious for clogged freeways. The projects include Crenshaw/LAX Transit Project, Metro Purple Line Extension, and the Regional Connector Transit Project, which total nearly 20 miles of route expansion valued at approximately $10 billion.

In addition to subway construction, recent tunneling projects in the Los Angeles area include the ECIS and NEIS sewer projects for City of Los Angeles, which comprised 15-plus miles of 8- and 11-ft ID sewer; and Inland Feeder water project for the Metropolitan Water District of Southern California, which comprised the Badlands Tunnel, Arrowhead East and Arrowhead West.

NAT is being held at the JW Marriott in the vibrant LA Live area in downtown Los Angeles.
The North American Tunneling Conference, held in alternating years with the Rapid Excavation and Tunneling Conference (RETC), is sponsored and organized by the Underground Construction Association of SME (UCA).

For more information or to register, visit www.smenet.org/meetings.

Official Exhibit Hours:

Sunday, June 22 (Move-In)    9:00 AM – 5:00 PM
Monday, June 23 ( Move-In)    9:00 AM – 3:00 PM
Exhibit Hall Opening Reception    5:00 PM – 7:00 PM
Tuesday, June 24
Exhibit Hall (Open)    11:00 AM – 2:00 PM
Exhibit Hall Lunch    11:30 AM – 1:00 PM
Exhibit Hall (Open)    5:00 PM – 7:00 PM
Exhibit Hall Reception    5:00 PM – 7:00 PM
Wednesday, June 25
Exhibit Hall (Open)    9:00 AM – 12:00 PM
Move-Out    12:00 PM – 8:00 PM

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ABC Industries Inc.
The most extreme tunnel and underground construction sites demand the most dependable, durable ventilation equipment available today.  Since 1926, ABC Industries Inc. has been a leading provider of high quality, customized ducting solutions to many of the largest tunneling operations around the world.  ABC’s line of MineVent and TruOval MineVent layflat blower tubing, MineDuct wire-reinforced exhaust ducting, RigiDuct filament-wound fiberglass ducting, brattice, fly pads, blast curtains, fans and accessories offer underground professionals a suite of ventilation solutions.  As tunneling and underground construction continue to evolve, ABC proactively collaborates with industry professionals to engineer unique, high quality ventilation products.

Akkerman
For more than 40 years, Akkerman has developed, manufactured and supported quality pipe jacking and tunneling equipment that accurately installs a variety of underground infrastructure. Over the years, the company has introduced manned pipe jacking, microtunneling, guided boring and earth pressure balance systems to expand the range of sizes, ground conditions and complexities in which the systems perform. Akkerman is committed to exceeding customer expectations with integrity, diligence and without compromise. For more information, visit Akkerman at NAT, booth #319. Web: www.akkerman.com.

Alpine Equipment
Alpine Equipment has been a trusted supplier of rock and concrete cutting equipment for the tunneling industry for over 35-years with extensive expertise in roadheaders and hydraulic cutterhead attachments. New in 2014 is the company’s innovative RockWheel line of hydraulic cutterhead attachments.  With the widest product range in the industry, there is an Alpine RockWheel for any carrier. Applications include: scaling, trenching, concrete trimming, profiling, rock excavation, demolition, and more. Web: www.alpinecutters.com.

American Chemical Technologies
American Chemical Technologies Inc. (ACT) manufactures and distributes biodegradable, fire-resistant and water soluble lubricants for TBM’s across the globe. EcoSafe FR hydraulic fluid and EcoGear gear oil technology represents a significant advancement in synthetic, fire resistance and biodegradability.  UCON Trident AW hydraulic fluids and Neptune gear lubricants meet the same requirements for demanding industrial applications.  Additionally, UCON Trident and Neptune offer a non-sheening, 100 percent water-solubility and an excellent aquatic toxicity profile, scored in the “practically non-toxic” category according to the U.S. Fish and Wildlife Classification. ACT commits to setting new standards for product performance and “Pride in Personal Service.” Web:  www.americanchemtech.com.

Amix Systems Ltd.
Amix Systems Ltd. (Amix) designs and manufactures superior grout and backfill mixing systems providing projects with better solutions. Amix’s mixing systems produce a homogeneous, flowable product that has been proven to reduce time, labor and materials.  Our products are designed with a focus on reliability (with substantially less operating and maintenance costs), modular design, and ease of site setup, transport and site security. Amix’s mixing systems can be self-cleaning, fully automated and are excellent for jet grouting, soil mixing, TBM two-component grout applications and bentonite mixing to mention a few. Web: www.amixsystems.com.

Avanti International
Since 1978, Avanti International is the most experienced producer of high-quality chemical grouts in the United States. Avanti’s products have been used extensively to control groundwater in many geotechnical applications before, during and after construction to stop leaks, stabilize soils, fill voids and create impermeable barriers in mines, tunnels, dams and subways. Avanti grout has been used worldwide in climates as arid as Egypt to the humid locales of South America. Avanti has a full product line including ultrafine and microfine cements, hydrophilic and hydrophobic foams, acrylamide, acrylic and acrylate grouts, chemically activated gels, and water-activated foams. Web: www.AvantiGrout.com.

Babendererde Engineers
Babendererde Engineers is an independent engineering company specializing in underground tunneling. Together with its sister company, Babendererde Engineers of Bad Schwartau, Germany, the firm focuses on tunnel design, project development, construction management and process engineering, as well as independent expert assistance on contractual disputes. Additionally, Babendererde Engineers offers Tunneling Processing Control (TPC) software, which is a unique software system that facilitates data management with multiple features easily tailored by the user for a specific purpose. Web: www.babeng.com

BASF Corporation
Through its Master Builders Solutions brand, BASF connects TBM tunneling professionals with the solutions that allow them  to become more successful, even through highly challenging ground conditions. BASF has the largest range of MasterRoc® (formerly MEYCO) products and services available to cater to the needs and challenges in TBM tunneling, whether it is in soft ground, or hard rock conditions.  We offer a full range of tunneling products such as soil conditioning foams and polymers, anti-clay agents, tail sealants, anti-abrasion agents, dust suppressants, bearing seal greases, EP2 greases and annulus grouts. Web: www.master-builders-solutions.basf.us.

Bekaert
Bekaert is considered a pioneer of steel fibers and a leader in innovation for concrete reinforcement, introducing Dramix over 40 years ago. Bekaert has advanced steel fiber reinforcement with two new Dramix steel fibers. The existing product portfolio has been rebranded as the 3D series. The new higher performing 4D and 5D series takes concrete reinforcement to the next performance level. Dramix products provide the optimum solutions to the ever increasing technical requirements in tunneling. The 4D and 5D line of fibers provide higher levels of anchorage, tensile strength and ductility to ensure the most economical, durable and user friendly solutions.  Web: www.bekaert.com.

Brookville Equipment Corp.
Brookville designs and manufactures diesel, battery and battery-trolley locomotives, personnel carriers and combination vehicles for underground miners and tunnelers. Customizable Brookville units come in ranges of 4 to 50 tons (3.6 to 45.4 tonnes) with variable gauges of 24 to 48 in. (610 to 1,220 mm). Recent product enhancements include remote control, LED gauge panels and integrated rearview cameras for operational safety and efficiency. Brookville units have been an integral part of some of the industry’s most notable projects, including the East Side Access Project in New York City and the Stillwater Mine in Montana, with permissible units delivering to the Crenshaw/LAX Transit Corridor Tunnel Project in 2014. Web: www.brookvillecorp.com.

ChemGrout
ChemGrout’s CG-600 Series comprises heavy-duty, high-volume colloidal grout plants that have provided the tunneling industry the standard for both water cut-offs and backfilling since 1963. The series combines the latest advances in colloidal mixing with ChemGrout’s patented 3L6A pump, providing outputs of up to 20 gpm and 261 psi. These field-proven grout plants feature a 13-cu ft capacity “Turobmixer,” along with a rotating bridge breaker, 13-cu ft capacity vertical shaft paddle agitator, and a three-stage size 6 closed throat progressive cavity pump. Mixer and pump are mounted on a single skid for quick, easy setup and immediate operation. Web: www.chemgrout.com.

CTS Cement
Rapid Set cement products from CTS are high-performance concrete materials that are used for underground roadway repair for ramps, underground maintenance facilities, and anywhere rutted out sections in mines need attention. Rapid Set products are great for extra high strength and abrasion resistant shotcrete in high traffic areas and in ore shafts. High strength, low shrinkage Rapid Set grout achieves strengths up to 7500 psi (55 MPa) in four hours. Rapid Set cement products achieve high strength much faster than most any other cement based products in the market.  Many installations can be put into service in as soon as one hour. Web: www.ctscement.com.

David R. Klug & Associates
David R. Klug & Associates Inc. provides international and national manufacturer representative services to the underground heavy civil and mine construction industries. The company specializes in the coordination of products, equipment and services for NATM, soft ground, precast segmental and conventional tunnel construction. This is inclusive of initial support systems, GFRP bolts and soft-eye structures, flexible membrane waterproofing systems, prefabricated final lining reinforcement products, steel molds, connectors and gasket sealing systems for one-pass precast tunnel linings, tunnel profiling/scanning equipment and associated site services, design and supply of project specific material handling systems, and complex final lining forming systems. Web: www.drklug.com.

Derrick
The Derrick HI-Cap Shaker offers over 62 sq ft of screen surface on a single unit and can process a maximum of 5,280 gpm (1,200 m3/hr) and offer up to 300 T/Hr of solids removal, which allows tunneling and other civil contractors unmatched shaker performance with minimal footprint. This is accomplished by utilizing Derrick’s true, high g-force linear motion shaker design, coupled with Derrick’s Polyweb urethane screen surfaces. Nearly half of its urethane screen surface is open area, which allows for maximum fluid and solids handling capacity. Polyweb screens are virtually non-blinding, and outlast comparable wire cloth surfaces by 10 to 15 times.  Web: www.derrickcorp.com.

DSI Underground Systems Inc.
DSI Underground Systems Inc. is America’s leading manufacturer and supplier of specialist ground support products to the underground industry. Over the last several years, DSI has strategically expanded its Underground Business Sector. Today, DSI is a global market leader in the design, development, production and supply of underground products and systems. Keeping in line with its strategy “Local Presence – Global Competence,” DSI has over 2,100 employees worldwide with operations across EMEA (Europe, Middle East, Africa), APAC (Asia-Pacific), North America and South America. Currently, DSI satisfies the demands of its customers in 95 countries around the world. Web: www.dsiunderground.com.

Everest Equipment Co.
Since 1975, Everest Equipment Co. has been a leading designer and manufacturer of custom underground construction forms in North America.  Everest’s company history includes the engineering and experience from the founding days of Ewing-Records and Burke Forms Group. Everest is your custom formwork source should your project require shaft formwork, blast-proof shaft formwork, many types of tunnel formwork, California switches, underground gantries and related equipment.  Everest is proud to encompass sales support, in-house engineering, and North American fabrication and on-site servicing of custom formwork designed to meet the harsh requirements of underground forming. Web: www.everestconstructionforms.com.

Gall Zeidler Consultants
Gall Zeidler Consultants (GZ) is a worldwide leader in geotechnics, tunnel design and engineering, and tunnel construction management, with special expertise in transportation and infrastructure projects. The company’s expertise has consistently been sought after by major contractors and project owners in the industry to assist with the mitigation of risks associated with tunneling, streamlining the design process and thus making it more time and cost efficient.  In addition, GZ provides specialized staff to conduct quality assurance and control as well as geological mapping, and construction management on-site for a number of complex, large-scale infrastructure projects. Web: www.gzconsultants.com.

Geokon
Geokon Inc., the world leader in vibrating wire technology, manufactures a complete line of high-quality geotechnical instrumentation suitable for monitoring the safety and stability of a variety of civil and mining structures including tunnels, underground caverns, mine openings, foundations, piles and the like. The company’s complete selection of geotechnical instrumentation includes piezometers, pressure cells, strain gages, inclinometers, load cells, extensometers, dataloggers, etc. Geokon’s elegant and rugged sensor designs exhibit excellent long-term stability, accuracy and reliability even in the most adverse conditions. Geokon has been awarded ISO 9001:2008 registration from ANAB, USA and UKAS of Great Britain, and Russian GOST certification. Web: www.geokon.com.

Gomez International
Gomez International’s Consulting and Engineering Division can assist in every aspect of a project, from design, estimating and submittals to project completion. Gomez specializes in all types of underground excavation methods, TBM application and design, underground support and operation systems. Gomez also offers equipment sales, lease, manufacturing and rebuild services for tunnel locomotives, excavators, rolling stock, ventilation fans, generators, transformers, power systems, and more. Gomez International is the North, Central and South American sales and service representative for Hitachi Zosen (TBMs), Hirosawa (vertical conveyor systems and Starloy Cutters), Mutsubishi Rubber (Entrance/Exit Seals), Sagami Servo (Grout Plant, Pumps) and Shin-Tomoe (Battery Locomotives). Web: www.gomezinternational.com.

HALFEN
HALFEN is a global leader in the design, manufacturing and distribution of anchoring systems for commercial construction and civil engineering markets. Well known and respected internationally for over 80 years, HALFEN offers a comprehensive range of pre-engineered, custom-designed and environmentally focused anchoring systems. HALFEN’s extensive anchoring system line includes adjustable embeds, high-capacity inserts, and framing supports for the attachment of utilities, signage, façade and more to concrete structures including commercial buildings, water treatment plants, power plants and tunneling projects. The company is committed to providing increasing value while maintaining a strong focus on quality, customer service and innovation. Web: www.halfenusa.com

Hatch Mott MacDonald
Hatch Mott MacDonald provides tunnel design and engineering solutions for rail and transit, road, water/wastewater conveyance, CSO storage, and cable and communications. With a reputation for technical excellence, HMM identifies practical approaches to tunneling, equipment selection and contracting approaches. Expertise includes soft ground and rock tunneling, cut and cover, underground caverns, immersed tube tunnels, jacked tunnels, and mircotunneling. Complementary skills in technical areas include tunnel rehabilitation, ground stabilization and treatment, tunnel systems, ventilation, and life safety and security. With a staff of over 2,600 and over 70 offices throughout North America, HMM’s vision is to be the consultant of choice. Web: www.hatchmott.com.

Hayward Baker
Hayward Baker provides services to solve a variety of tunneling issues: the stabilization of soft soils for tunnel boring and break-ins and break-outs; groundwater control; tunnel liner stabilization; access shaft construction; re-leveling TBMs; and controlling settlement of overlying structures during tunnel boring. Hayward Baker has the experience and state-of-the-art technology to solve every subsurface problem, typical or unique. Web: www.haywardbaker.com.

Herrenknecht AG
As the only company worldwide, Herrenknecht delivers cutting-edge tunnel boring machines for all ground conditions and in all diameters – ranging from 0.10 to 19 m. The Herrenknecht product range includes tailor-made machines for transport, supply and disposal tunnels. Under the umbrella of the Herrenknecht Group, a team of innovative specialists has formed to provide integrated solutions around tunnel construction with project-specific equipment and service packages upon request. Currently, Herrenknecht has three large diameter machines operating on U.S. projects: Lake Mead Intake No. 3 (7,180 mm, Multi-mode TBM), Columbus OARS (6,960 mm, EPB) and Blue Plains Tunnel (7,995 mm, EPB). Web: www.herrenknecht.com.

HIC Fibers
HIC Fibers Inc. has opened offices in Los Angeles, Calif., for North America and Lima, Peru, for Central and South America. This marks the first time that HIC Corp., based in South Korea, has opened offices with the intention of selling direct to the end user in lieu of selling strictly through distributors. HIC Fibers has the exclusive technology and rich know-how in manufacturing of steel fibers. HIC Fibers can provide you a steel fiber of your choice in length, diameter and package. Web: www.hicfibers.com.

HNTB
Celebrating a century of service in 2014, HNTB Corp. is a leader in providing solutions to infrastructure challenges nationwide. For more than 45 years, the firm has completed award-winning work on some of the country’s most complex tunnels and underground projects. Experience includes design, construction and restoration for soft ground, rock, immersed tunnels and underwater crossing tunnels in the highway, transit, rail, aviation and water resources markets. Projects range from small-diameter excavations to the world’s largest machine-bored tunnels. Web: www.hntb.com.

ILF Group
The ILF Group is a 100 percent independent and privately owned engineering and consulting firm with more than 40 years of experience.  ILF has a permanent staff of over 1,800 employees in more than 30 offices worldwide.  The four core areas of ILF’s expertise include oil and gas, energy, water and environment, and civil engineering and infrastructure.  ILF’s underground engineering experience includes: railway, roads, metro, tunnels, shafts, caverns, mining, and tunnel ventilation systems.  The company’s particular strength is in its ability to develop and execute complex engineering projects that require overall design and project management services.  Web: www.ilf.com.

Jacobs Associates
Jacobs Associates provides practical, cost-effective, and innovative solutions for difficult underground projects and excels in the water, wastewater, and transportation sectors. With an emphasis on tunnels and shafts, we offer a full range of design and construction management capabilities. Our marriage of technical expertise and field experience puts us ahead of our competitors. We also offer the broader heavy civil construction industry a robust package of claims and dispute resolution services. Jacobs Associates is an award-winning firm with 14 offices in the United States, Australia, New Zealand, and Canada. Web: www.jacobssf.com.

Kenall Lighting
Kenall’s new Luxtran LTS Series is a high-output LED luminaire suitable for supplemental illumination of tunnels, primarily within the threshold and transition zones. A lower-output version of the fixture is also available, suitable for underpass lighting as well as tunnel interior zone lighting. The Type 316 stainless steel housing fixture will withstand the most corrosive tunnel environment, boasting a standard 10-year warranty. The fixture is IP66 Rated, and is designed in accordance with ANSI C136.27 Standard for Water Spray Testing and ANSI C136.31 Standard for Vibration Testing. The LTS Series offers both integral and remote driver options. Web: www.kenall.com.

Layne GEO
Layne GEO is the geotechnical construction division of Layne Christensen Co., providing design-build capabilities and innovative solutions within the fields of ground improvement, deep foundations, earth retention, and customized equipment design and fabrication. Layne GEO’s services are geared toward soil stabilization and subterranean structural support during the construction or rehabilitation of dams/levees, tunnels, shafts, mines, water lines, subways, commercial buildings, highways and marine facilities. Product lines include jet grouting, diaphragm and slurry cutoff walls, cement and chemical grouting, drilled piles, vibratory ground improvement/stone columns and ground anchors. Layne GEO has extensive experience in successful completion of complex, schedule-driven major underground construction projects. Web: www.layne.com.

Malcolm Drilling Co.
Malcolm Drilling Co. Inc. has for five decades been an innovator and leader in the deep foundation industry. Malcolm’s list of core services as it relates to tunneling and geotechnical construction includes access shafts, support of excavation systems, cutoff and secant pile walls, grouting techniques, various soil mixing methods and dewatering. These combined services have routinely been applied on numerous complex tunneling projects throughout North America from SR 99 in Seattle to the POMT in Miami. The company’s engineering experience facilitates design-build efficiency and allows for timely collaboration with owners and contractors. Malcolm provides these services nationwide through our regional offices. Web: www.malcolmdrilling.com.

McDowell Equipment Ltd.
McDowell Equipment Ltd. supplies new and late-model tunneling equipment for rental or sale. The company’s rental fleet consists of underground loaders from ½ to 10 yd; underground haul trucks from 7 to 40 tons; low-profile motor graders; jumbo drills with one, two or three booms; underground remixers; locomotives; and muck cars. McDowell manufactures shotecrete machines, scissor lifts, ANFO loaders, and personnel carriers. The company can also offer fully re-manufactured or reconditioned equipment at significant savings from new with fast delivery times. Web: www.bmcdowell.com.

Messinger Bearings
Surpassing 100 years, Messinger Bearings is one of an elite few companies in the world capable of producing large (up to 25 ft in diameter), custom-designed bearings in limited quantities for tunnel boring machines (TBMs). In fact, Messinger focuses only on manufacturing new and expert repairing of large custom bearings in low volumes for special applications. Messinger goes above and beyond supplying just the bearing, offering complete solutions (field inspection, bearing storage tanks, etc.)  With Messinger’s expanding core of expertise and experience, customers can expect a quick response, unparalleled application support and timely delivery to better support the tunnel market.

MineARC Systems
MineARC Systems is the global leader in the manufacture and supply of emergency safe-refuge systems to the tunneling, underground mining and chemical processing industries. With over 15 years of experience in the industry, MineARC’s dedication to ongoing research and development has kept it at the forefront of safe-refuge technology. MineARC Refuge Chambers have been successfully used around the world in multiple mine and tunnelling emergencies to save lives. All MineARC Refuge Chambers comply with world’s best practice industry legislation, including the current ITA Guidelines and the British Standard relating to refuge chambers. MineARC is an active member of the International Tunnelling Association (ITA) and in 2013 received the award for Safety Initiative of the Year at the annual NCE International Tunnelling Awards. Web: www.minearc.com.au.

Moretrench
Moretrench is a geotechnical contractor specializing in design-build and turnkey solutions for challenging construction requirements and subsurface conditions. The company’s range of services includes dewatering and groundwater control; ground/water treatment; ground freezing; grouting; cut-off and containment; earth retention and excavation support; underpinning and foundation support; deep foundations; ground improvement, landfill gas and leachate systems; and specialized civil and mechanical construction. These services are available nationwide through offices in New Jersey, New York, Florida, Massachusetts, Pennsylvania, Delaware, Wisconsin, Iowa, Texas and Washington, D.C. Web: www.moretrench.com.

Naylor Pipe Co.
Established in 1925, Naylor Spiralweld Steel Pipe is the contractor’s choice for tunnel construction pipe: ventilation, compressed air, cooling water, well point headers and dewatering service are common uses. Naylor Pipe is manufactured in accordance with ASTM A-139 and ASTM A-211 specifications. Diameters range from 4 to 96 in. and thicknesses from 1/16 to ½ in. Also available are the necessary fittings and connections including the exclusive Naylor Heavy Duty Wedgelock Couplings to complete your pipe system. Web: www.naylorpipe.com.

Normet
Normet is a fast growing Finnish technology company with global operations. It provides advanced solutions for selected customer processes in underground mining and tunneling environments. The Normet Group develops, manufactures and markets machines, services, construction chemicals and specialized rock bolts for underground processes such as robotized concrete spraying, highly mechanized explosive charging and scaling, lifting and Installation, rock reinforcement and logistics. Normet`s offering includes a comprehensive range of life time care (LTC) services for the equipment and the processes they are used for. Web: www.normet.com.

Northwest Laborers-Employers Training Trust –
Safety Hazard Awareness for Tunnels (SHAFT) Program
Developed by the Northwest Laborers-Employers Training Trust with input from a team of industry experts and stakeholders, the Safety Hazard Awareness for Tunnels (SHAFT) program seeks to fill a void by providing quality, comprehensive safety training for both new and experienced tunnel professionals. The curriculum is comprised of a blend of classroom discussion and use of materials and mockups in classes focusing on basic tunnel safety, rail, and utilities. Our facility, located in Elma, Wash., features a TBM mockup, loci, and access to 1,400 ft of 12-ft diameter tunnel, providing students with a unique, interactive educational experience. Web: www.nwlett.org.

Parsons
Parsons, celebrating nearly 70 years of growth, is a leader in many diversified markets. the company’s more than 100 tunnel professionals have specific expertise in planning; design; construction (design-build and alternative delivery); construction management; program management; and the operation of water, wastewater, and transportation tunnels. Parsons has completed 250 tunnel projects across the globe and 60 recent tunnel projects. Experienced with soft-ground, rock, and mixed-faced conditions, Parsons is committed to delivering rapid, safe, economical tunneling. When you can’t go over or around an obstacle, only one solution remains: Parsons. Web: www.parsons.com.

Parsons Brinckerhoff
Parsons Brinckerhoff is a leader in developing and operating infrastructure around the world, with 14,000 employees dedicated to meeting the needs of clients and communities in the Americas, Europe, Africa, the Middle East, Asia and Australia-Pacific regions. Parsons Brinckerhoff offers multidisciplinary skills for the development of all modes of infrastructure including transportation, power, mining and water/wastewater. The firm’s Geotechnical and Tunneling group provides a full range of engineering, planning and construction management services that have resulted in award-winning tunnels, caverns, underground storage facilities and below-ground structures. Web: www.pbworld.com.

Pemco
For more than 50 years, Pemco Corp. has provided the mining and tunneling industries with dependable electrical power distribution equipment. The firm’s electrical power center, transformers and control products are designed and manufactured to specific project requirements to meet the demands of underground environments. Pemco Corp. also provides a full complement of electrical equipment for above ground (outside) support operations such as substations, control buildings, etc. Web: www.pemco.net.

Poltinger Precision System GmbH
The PPS Guidance Systems for TBMs and roadheaders are designed to provide maximum positional information to the pilot of a TBM while requiring a minimum of attention. The system automatically determines the TBM’s exact position and direction in 3D. It also gives the pilot all necessary information about the deviation of his TBM from the designed centerline. For tunnels with segmented liners, ring calculation software and further useful features are also available. Web: www.pps-muc.de.

QSP Packers
QSP Packers is a manufacturer/supplier of a complete range of inflatable and mechanical packers used in North America and worldwide.  They have many uses, including pressure grouting, single or straddle set-up, tube-a-manchette, wireline/core drilling, permeability testing, and water wells. Also available are environmental well packers, and even mechanical packers. They are field repairable. If something goes wrong, just call QSP Packers and the company will have the parts to you next day.  Parts are interchangeable with packers using Bimbar, Geopro and Petrometalic Glands. Web: www.qsppackers.com.

Richway Industries
Richway Industries Ltd. manufactures cellular concrete equipment and also ASTM-approved foaming agent, CMX. Common uses for cellular concrete in the tunneling industry are annular grouting, pipeline abandonment, and tunnel/general backfill. Some advantages to using cellular concrete are flowabililty (it can be pumped long distances), reduces potential for pipe flotation, can be easily excavated, and it can save time and money. With 40 years of design and manufacturing experience, Richway has developed several models of cellular concrete equipment ranging from lab size to large volume production machines to fit any job.

Schauenburg Flexadux Corp.
Schauenburg Flexadux Corp. was founded in the United States in 1974 as a manufacturer of flexible ventilation ducting. Over the years, it has expanded into a multifaceted manufacturing and distributing company providing flexible lay flat, spiral, rigid and fiberglass ducting; pumpable crib bags; electronic gas detection; and other custom fabricated equipment for the mining/tunneling industry. Schauenburg is fully equipped to assist with all your needs with locations in both the eastern and western regions. Web: www.schauenburg.us.

Schnabel Foundation Co.
Schnabel Foundation Co. is a geotechnical contractor that specializes in design-build earth retaining structures and deep foundations. Schnabel’s expert engineers, experienced field staff and specialized equipment provide a wide range of solutions for the tunneling industry including secant pile walls for shaft and pit construction, soil nailing, tiebacks and tiedowns, underpinning, deep soil mixing, jet grouting, and micropile foundations.  Since 1959, Schnabel has served the U.S. construction industry and currently has offices in Atlanta, Boston, Chicago, Denver, Houston, Orlando, Philadelphia, San Francisco and Washington, D.C.  Web: www.schnabel.com.

Shannon & Wilson
Shannon & Wilson develops innovative tunneling solutions to fit specific, challenging, site conditions. The firm’s excellent reputation in tunnel design was earned on projects including the world’s largest diameter soft-ground tunnel; the world’s first and only vertical, continuously spiral-lined shaft; the largest deep-transit station in soils in the United States; and state-of-the-art instrumentation for major tunnel installations. Shannon & Wilson’s staff is experienced in designing and managing construction for tunnels that involve a wide range of excavation techniques, including drill-and-blast, roadheader, tunnel-boring machine, earth-pressure-balance machine, slurry machine, sequential excavation, microtunneling, pipe jacking, and directional drilling. Web: www.shannonwilson.com.

Shotcrete Technologies Inc.
With over 30 years on the cutting edge of the shotcrete industry worldwide, Shotcrete Technologies offers: Shotcrete equipment, including the industry standard Shot-Tech Robotic Arm, which can be mounted on many types of carriers.  Hundreds are used all over the world; Shotcrete accelerators and admixtures, including the well-known Shotset-250 accelerator; Technical support and expertise, The company’s knowledgeable team of professionals provide everything from shotcrete system design, mix design, testing and training based on your specific needs. Web: www.shotcretetechnologies.com.

Spendrup Fan Co.
Spendrup Fan Co. builds fans for any extreme operating condition. The company’s line of fans includes direct, belt or shaft-driven designs used in mines throughout the United States, Mexico, Canada, South America, the Middle East and Australia. Each Spendrup fan is custom machined and specifically designed for tunneling, power generation, processing plants and heavy industrial fields. Spendrup Fan is the exclusive North American distributor of CFT de-dusting equipment. German-based manufacturer CFT provides industry-wide de-dusting systems, and is well known as the world market leader in compact filter technology. Web: www.spendrupfanco.com.

Stirling Lloyd
For more than 35 years, Stirling Lloyd has led the world in high-performance waterproofing for tunnels and bridges, utilizing advanced MMA technology. Secure waterproofing for the internal linings of SEM concrete-lined tunnels is provided by the Integritank HF membrane, with a strong, seamless bond across 100 percent of the substrate in any orientation, bridging newly formed cracks, accepting direct shotcrete application, and suitable for 100 percent non-destructive impermeability testing during construction. Stirling Lloyd is dedicated to the long-term protection of highway, railroad and utility infrastructures. Web: www.stirlinglloyd.com.

tacs GmbH
tacs GmbH develops, produces and supplies guidance systems for all kind of TBMs. Specialties of the company’s highly developed acs guidance system are attractive graphical displays and documentation, calculation of a correction curve to return tangentially to the DTA, fully automatic check measurements and particularly the calculation of the optimum position of the tapered ring. New developments integrate AutoCAD drawings for plan view and geological profile and facilities to export ring and TBM data into AutoCAD drawings. The acs guidance system links the disciplines surveying, civil engineering and machine technology and supports these areas and their interaction by manifold coordinated functions and tools. Web: www.tacsgmbh.de.

TBM: Tunnel Business Magazine
TBM: Tunnel Business Magazine has been the industry leader in the North American tunneling market since its launch in 1998. The magazine is written for leading professionals in all aspects of tunneling, including contractors, engineers, owners, manufacturers and more. TBM covers project stories, design elements, contracting strategies, legal issues, new technology – anything that is pertinent to planning and building a tunnel.  Notable features in TBM include the Project Update and Upcoming Project features, the annual Buyer’s Guide, Editorial Roundtable and regional focus areas that highlight projects – past, present and future – throughout the United States and Canada. Web: www.tunnelingonline.com.

Technical Tunnelling Components
Technical Tunnelling Components (TTC) has over 40 years of experience manufacturing and supplying segment accessories such as connection bolts, grout/lifting sockets, segment packers and grommets along with the award-winning Dowelock connection system. TTC truly is the one-stop shop for all precast segmental fixing and grouting systems. The in-house design and manufacturing capabilities that Tunnelling Accessories and Bosworth Plastics have can also offer products for challenging situations as well as standard segment accessories. TTC supplies components worldwide with an impressive product portfolio along with excellent service. Web: www.ttcltd.org.

TEI Rock Drills
TEI Rock Drills manufactures electrically powered drills for the tunneling industry. These rigs are equipped with TEI’s patented feeds, drifters and rotary heads. All types of percussion, rotary, coring and auger drilling are possible with emphasis directed to very adaptable drills build on small electric carriers.  All TEI Rock Drills are manufactured in Montrose, Colo. Web: www.teirockdrills.com.

Tenbusch Inc.
Tenbusch Inc. designs and manufactures custom tunneling and pipe jacking systems for underground construction applications. Products include but are not limited to: tunnelling and pipe jacking shields, excavators, conveyors, spoil carts and track, jacking frames, hydraulic power units, bentonite/polymer lubrication systems, and backstops. Tenbusch also manufactures sliplining systems and pipe carriers. From desktop conception, to the heavy-duty equipment delivered at the jobsite, Tenbusch produces high-quality tunneling and pipe jacking systems. Based on customer needs and requirements, Tenbusch can supply either individual components or a complete integrated equipment system.

The Robbins Company
Robbins has integrated over 60 years of experience into its Earth Pressure Balance Machines (EPBs). Robbins’ unique EPB design includes “Smooth Flow” cutterheads and VFD drives to tackle geology ranging from soft soils to mixed ground. Robbins EPBs are customized to meet the individual needs of each project, and because of this, they have reached milestone advance rates worldwide. In the last five years, Robbins EPBs have set records in the United States, China, India, Russia, Mexico and more. On one such jobsite, Emisor Oriente in Mexico City, a Robbins EPB reached a project record of 592 m (1,942 ft) in just one month. Web: www.therobbinscompany.com.

Trelleborg Ridderkerk
Trelleborg Ridderkerk is your partner in the design and production of engineered rubber products. The company’s focus is on the markets of civil engineering, offshore oil and gas, dredging, sewage, building and industry. Trelleborg Ridderkerk has unrivalled expertise in seal design and elastomer technology, and is the world’s leading manufacturer of elastomeric gaskets for immersed tunnels, cut-and-cover tunnels and bored tunnels. Trelleborg Ridderkerk can supply the complete package of high qualified seals for every type of tunnel. The one-stop shop for tunnels seals. Web: www.trelleborg.com.

VMT
VMT has been supplying tailor-made solutions, services, navigation and monitoring systems to the tunneling industry since 1994. Development of specific systems for the guidance of tunnel boring machines in segmentally lined, pipe jacked and conventional tunnels has been the major aspect of product development to date. For each project, VMT provides a documentation, storage and monitoring system with evaluation and analysis functions. Sales and rental of this equipment around the world has established VMT as the leading survey technology supply company. Subsidiaries on four continents assure close and quick support to customers worldwide. Web: www.vmt-gmbh.de.

W.R. Grace & Co. Infrastructure
Grace Construction Products has been a leader in the advancement of waterproofing technologies and solutions and combines innovative technologies and time-tested products to provide reliable waterproofing solutions for virtually all below-grade infrastructure applications. Grace also offers a wide variety of admixtures, fibers, corrosion inhibitors, shrinkage reducing admixtures and synthetic macrofibers for structural concrete. Additionally, Grace offers high and ultra-high density spray-applied cementitious fireproofing to protect against the most severe fire exposures. Grace offers maintenance and repair solutions with grout technology from the DeNeef line of polyurethanes and acrylate grouts to provide leak sealing solutions that stop the infiltration of water into the structure. Web: www.grace.com.

ZED Tunnel Guidance
ZED designs, develops and manufactures guidance/navigation systems for all types of full face TBMs. Located west of London in the United Kingdom, the company’s main strengths are its broad knowledge of the basic engineering principles required and the ability to apply these, with the latest technology available, to system development. The result is an innovative, modular, robust and highly reliable range of products for use in the toughest environments, which helped the company to receive the Queens Award for Enterprise 2011 (Export). A small, hard-working team, ZED responds promptly and effectively to reported problems from sites around the world.  Web: www.zed-tg.co.uk.