Ground Improvement and Support
It is often necessary in tunnelling to enhance the strength properties and impermeability of the ground artificially in order to provide additional stability during construction or supplement the support capability of the permanent tunnel lining. Two basic methods are commonly available, namely injection grouting and strata reinforcement using ground anchorages and rockbolts. Though normally used during the construction of new tunnels, these methods are finding increasing use in the refurbishment of existing tunnels.
Injection of a fast reacting, expansive polyurethane will fill any voids and seal leaks. Such a grout should have known characteristics, be sufficiently free flowing to allow good penetration of the external substrate, and be injected to where the problem lies. In situations where lining instability may be a problem, injection of an acrylic resin will fill any water paths and seal the area without putting pressure on the structure.
N.V. Bekaert SA
Steel Fibre Reinforcement and Dosing Equipment
Bekaert manufactures the popular range of Dramix® cold drawn wire steel fibres. The fibres are available in different lengths (30, 35, 40, 50 and 60 mm) and in different performance classes (45, 65 and 80) according to the application. Dramix can be used with traditional dry and wet shotcreting equipment, materials and additives. Dramix® fibres are glued together in bundles by water-soluble glue. The bundles separate easily into single fibres and guarantee a homogeneous distribution in the concrete mix. A more recent innovation has been the use of Dramix in precast segmental linings; the Dramix is batched into the concrete via the specialised dosing equipment that will be displayed at UC2001. The equipment is supplied by Incite AB of Sweden, who have over 130 units operating worldwide.
The typical fibre design has been developed and improved after years of research and over 30 years of experience. An optimal balance has been created between shape, tensile strength and L/D ratio, and the carefully designed hooked ends provide optimal anchorage in the concrete. Both companies operate worldwide, and provide advice on lining design and installation to their customers. Both have been involved in many major tunnelling projects, and can rightly claim to be the foremost innovators in the steel fibre reinforcement industry. Their products and original inventions are being widely emulated. Bekaert publishes an excellent 230-page illustrated reference text entitled "Tunnelling the World", currently being revised, that describes recent developments in shotcrete, tunnel technology and equipment with particular reference to steel fibre reinforcement.
N.V. Bekaert SA, Bekaertstraat 2, B 8550 Zwevegem, Belgium, tel +32 56 766986, fax +32 56 767950, or visit www.bekaert.com
Casagrande UK Ltd
Piling, Drilling and Tunnelling Equipment
Casagrande UK is the sole UK and Irish distributor for Casagrande SpA of Italy, one of the world's leading manufacturers of piling, drilling and tunnelling equipment for the construction Industry. Casagrande's product range includes rotary and CFA rigs, hydraulic cranes, diaphragm walling equipment, small diameter drilling rigs, tunnel drilling rigs and other piling and drilling accessories.
Also represented on the stand will be the UK company, Techno Drill Design Ltd, recently acquired by the Casagrande group. Techno Drill offers a complete range of mini piling and soil investigation rigs.
Stand personnel Mike Finch (Casagrande UK), Mr S Duck (Techno Drill).
Casagrande UK Ltd, Unit 3, Botley Lane, Chesham, Bucks HP5 1XS, UK, tel +44 (0)1494 794990, fax +44 (0)1494 794991, e-mail info.casaguk@virgin.net or visit www.casagrandegroup.com
C.V. Buchan Ltd
Batching Plants and Segmental Linings
Buchan offers precast concrete solutions for both underground and above-ground projects. Computer controlled batching plants and distribution systems are employed to meet the most stringent requirements, and a wide range of concrete products is manufactured, either to customers' specifications or as standard items. These include all types of tunnel and shaft linings and steel-banded jacking pipes and standard bolted tunnel and shaft linings are supplied in a wide range of sizes up to 35m i.d. A comprehensive range of smoothbore tunnel and shaft linings is available, including six-segment trapezoidal rings for use behind the latest TBMs. The firm has also developed, in conjunction with Dunlop Precision Rubber Ltd., 'Bucseal', a hydrophilic rubber gasket system that provides superior expansion in seawater compared to most proprietary water swelling compounds. The complementary product 'Buclock' is a plastic joint connector system that is compatible with both hydrophilic rubber and EPDM compression gaskets, and is supplied in a range of pull-outs from 15kN to 60kN. Buclock provides a positive shear and tensile connection in all tunnelling environments, and the speed of fixing significantly reduces building times and eliminates circle bolts and pockets.
C.V. Buchan Ltd, Drake House, Gadbrook Park, Rudheath, Northwich, Cheshire CW9 7RS, UK, tel +44 (0)1606 47890, fax +44 (0)1606 47710 or visit www.cvbuchan.co.uk
Dywidag-Systems International Ltd
Geotechnical and Post-tensioning Products and Services.
Dywidag supplies ground anchors (temporary or permanent, complying with BS 8081), threadbar anchors (up to 2217 kN), strand anchors (up to 8100 kN), and multi-stage anchors - staged bond lengths for weak ground. Soil Nails, Rock Bolts, Mini Piles, Gewi-Steel Threadbar (plain, galvanised or factory pregrouted). MAI Hollow Bar, a self-drilling hollow bar used for soil nails, mini piles or temporary anchors. Stressing and Testing Services, with on-site acceptance testing and monitoring. Equipment hire. Current projects include: CTRL, Sunderland Metro, GLA, M50 Dublin, Tay Wastewater Treatment Works.
Dywidag-Systems International Ltd, Northfield Road, Southam, Warwickshire CV47 0FG, UK, tel +44 (0)1926 813980, fax +44 (0)1926 813817, e-mail sales@dywidag.co.uk or visit www.dywidag-systems.com
Hydramatic Engineering UK Ltd
Drilling and Bolting Machines
Hydramatic designs and manufactures the ARO range of hydraulic and pneumatic drilling and bolting machines for mining, tunnelling and other civil applications world-wide, and is accredited with ISO 9001. Hydramatic equipment is manufactured using the highest quality specialised materials, to produce some of the toughest and most efficient machines of their type. Hydramatic has fitted its strata control equipment to Herrenknecht, Wirth and Robbins TBMs with diameters ranging from 3.5 m to 12 m, in countries ranging from Australia and Switzerland, to Iran, Greece and India. Applications have included rock drilling, probe drilling, core drilling and injection drilling.
All products in the field are fully supported with spares and back up service, and the company offers comprehensive service and maintenance contracts ensuring an extended trouble free working life for all equipment supplied.
Hydramatic Engineering UK Ltd, Brooklands Road, Carcroft, Doncaster DN6 7BA, UK, tel +44 (0)1302 337232, fax +44 (0)1302 724184, e-mail george@hydramaticuk.demon.co.uk
Incite AB
Steel Fibre Dosing Systems
Incite AB, a Swedish mechanical engineering company is now a world leader in steel fibre dosing systems. Incite's operations encompass sales, product development, manufacturing and service in the field of steel fibre dosing technology. Our selected customers are found worldwide, and are reached through direct sales and via various partners. Our competence is in the area of refining processes through steel fibre dosing technology. Hundreds of installations and complex technical challenges have given us experience to set the standard in this field. Our purpose is to create continual improvements in productivity for our customers. Standard products that we produce and adapt to our customers' needs, fixed prices, guaranteed delivery times and 24-hour service will result in increased profitability for our customers. In order to realise our business concept of achieving market leadership, we expect the same level of ambition from our employees and suppliers as our customers expect from Incite. For more information, please contact us.
Incite AB, Box 178, S-301 05 Halmstad, Sweden, tel +46(0)35-218500, fax +46(0)35-218510, e-mail info@incite.se or visit www.incite.se
Instrumentation, Testing & Monitoring (ITM) Ltd
Geotechnical monitoring systems
ITM are the UK market leaders in the supply and installation of automated structural and geotechnical monitoring systems, and are the UK distributors for Slope Indicator Company of Seattle and Interfels GmbH of Germany. Based in the south east of England, ITM has a UK-wide presence, having worked on nearly all of the major UK civil engineering projects during the last decade, particularly those related to urban tunnelling. ITM services range from the supply of a simple instrument & readout combination, to the installation of a multi-sensor system over a wide area, with automated reporting and alarms. ITM are ISO 9000 registered and have a National Railway Safety Case. Staff members include highly experienced tunnel engineers, and the company consultant is Dr R. Bassett of UCL, a world authority in underground construction.
ITM Ltd, Boart Longyear House, Lewes Road, Forest Row, East Sussex RH18 5AA, UK, tel +44 (0)1342 827300, fax +44 (0)1342 826777 or visit www.itm-ltd.com
Keller Ground Engineering
Compensation Grouting
Compensation grouting using soil fracturing is a process largely developed and pioneered by Keller and now offered worldwide under the trademark Soilfrac. Keller first used the process in the early seventies to successfully arrest and reverse settlement of structures that had settled out of vertical tolerance, whilst ensuring minimal disturbance to the occupants during the works.
The system was further developed by Keller to control movement caused by tunnelling operations, permitting the rapid expansion of underground transit systems in urban areas.
Keller has since used Soilfrac to control settlement on many rail tunnelling projects in weak soils in Germany, Portugal, Austria, and Canada. They also introduced the system into the UK some ten years ago, initially for work on the Jubilee Line extension and the Heathrow Express tunnels. Further UK projects carried out by Keller include the DLR extension to Lewisham, and treatment to a number of major retail centres suffering from deep seated slab settlement problems.
Keller is a world leader in compensation grouting, and offers both Soilfrac and Compaction grouting, along with a wide range of other specialist grouting systems.
Keller Ground Engineering Ltd, Unit 611, Thorp Arch Estate, Wetherby, West Yorkshire LS23 7BJ, UK, tel +44 (0)1937 541 118, e-mail marketing@keller-ge.co.uk or visit www.keller-ge.co.uk
Lankelma Piling & Engineering Ltd
Cone Penetration Testing
Lankelma Piling & Engineering Ltd is part of the Lankelma Group in the Netherlands (since 1896). Lankelma has been working in the UK and Ireland since 1999, having invested in high-technology equipment that includes a mobile CPT office with fax and e-mail facilities. Lankelma also has mobile rigs, minicrawlers, crawlers, 6x6 trucks and a track truck. Site operations are run by Andy Barwise, a geotechnical engineer with years of experience in cone testing in the UK, Ireland and overseas. All reporting can be carried out digitally, and can be picked up from the Lankelma extranet, e-mailed or send on a CD-ROM.
Lankelma Piling & Engineering Ltd, Cone Penetration Testing Division, Iden, East Sussex TN31 7UY, UK, tel +44 (0)1797 280050, fax +44 (0)1797 280195, e-mail info@lankelma.co.uk or visit www.lankelma.co.uk Also at Congleton, Cheshire, UK and Dublin, Ireland.
MAI International GmbH
Self Drilling Anchors
MAI, with headquarters in Feistritz/Drau, Austria is a long standing innovative company producing and distributing world wide self-drilling, hollow-core anchor systems, which meet many areas of today's demand in the tunnelling and soil engineering industry. MAI anchors are employed in particular in unconsolidated soil and disturbed rock conditions for systematic anchoring and spiling, or as root piles in the tunnelling sector. They are also used for slope stabilisation to maintain infrastructures and as micro-injection piles for civil engineering purposes.
To complement its anchoring technology, MAI also produces mortar grout pumps, which can process a wide variety of machine mortars and cements.
MAI International GmbH, Werkstrasse 17, 9710 Feistritz/Drau, Austria, tel +43 4245 6233-0, fax +43 4245 6233-10, e-mail mbt@mai.co.at
MBT Underground Construction Group
Sprayed Concrete and Injection Products
The MBT Underground Construction Group has supplied technical solutions to hundreds of projects, from major tunnel contracts to extensive mining operations worldwide. With headquarters in Switzerland, it has global representation to meet customers' needs. The UK division is integrated into the UK business unit via the Manchester office, with a dedicated team providing expertise, advice and support for products and systems in the following areas: sprayed concrete equipment; TBM products; ground stabilisation injection; and the mining sector
MBT is now part of Degussa Construction Chemicals, a subsidiary of Degussa, one of the world's leading chemical companies. The group employs 63,000 people in over 100 countries world-wide.
MBT Underground Construction Group, Marketing Department, tel +44 (0)161 794 7411, fax +44 (0)161 727 8881, e-mail ross.dimmock@mbt.com or richard.foord@mbt.com or visit www.mbt-ugc.com
Oxford Hydrotechnics Ltd
Resin Injection and Grouting
Oxford Hydrotechnics is an innovative company, specialising in advanced resin injection & grouting techniques. With over 30 years experience, complex projects undertaken include: controlling sea water inundation halting a TBM drive; consolidating waterlogged gravel below a first century wall; sealing shafts constructed through running sands; sealing sea water ingress through defective concrete; sealing substantial hydrostatic head in partially collapsed ground; sealing very high water flows through fractured rock; consolidating mobile ground, forming thrust blocks for pipe jacking; consolidating & sealing incompetent ground at shaft breakout eyes; sealing leaks under 20 m of water; stabilising river gravel, permitting hand mining; and underwater resin injection using trained divers.
Oxford Hydrotechnics Ltd, Unit 2, Baynards Green Farm, Baynards Green, Oxon OX27 7SR, UK, tel +44 (0)1869 346001, fax +44 (0)1869 345455, e-mail info@oxford-hydrotechnics.co.uk
or visit www.oxfordhydrotechnics.co.uk
Quickseal Specialist Contractors Ltd
Specialist Concrete Repair and Protection
Quickseal has expanded to become one of the leading companies specialising in the repair, strengthening and protection of reinforced concrete structures.
Of particular relevance to work in the underground environment, the company provides the following services: sprayed concrete to construct or line shafts and tunnels and to provide facings to diaphragm walls; waterproof renders to seal damp or leaking basements; and Railfix systems to minimise vibration and thereby reduce structural deterioration.
In the United Kingdom, Quickseal is the contracting partner of the Swiss company, Rascor. Together they design and implement both remedial and new-build solutions to waterproofing problems. Their techniques are based upon the pressure injection of aqua-reactive flexible modified acrylic materials into existing cracks or special carrier channels.
Quickseal Specialist Contractors Ltd, The Manor House, 50 Chigwell Road, South Woodford, London E18 1LS, UK, tel +44 (0)20 8530 6808, fax +44 (0)20 8530 7254, e-mail enquiries@quickseal.co.uk or visit www.quickseal.co.uk
Rascor AG
Waterproofing and Grouting Technology
Rascor is a highly specialised company operating in the fields of waterproofing, grouting technology and building/structure preservation and repair. Based in Switzerland, the company develops and produces its own systems, products and machines for the above applications. The foundation stone for the group was laid in 1965 by René P. Schmid, who still heads the company. It is now represented by its own branches and subsidiaries in a number of European, South American, Asian and Arabian countries, ensuring on-the-spot support for all local partners.
Among Rascor's major assets is its tremendous wealth of knowledge and expertise, underpinned by a powerful, efficient global network capable of tackling the most challenging and prestigious of international projects. Recent successes have developed on the effective use of the patent to speed up the construction of tunnels and basements by up to 25% by the employment of RASCOtec re-injectable crack inducers and the White Tank System RASCOR where a 10 year guarantee can be provided against water ingress.
Rascor AG, Wehntalerstrasse 11, CH-8165 Oberweningen, Switzerland, tel +41 1857 1111, fax +41 1857 1100, e-mail martin.smith@rascor.com or visit www.rascor.com
Romtech Ltd
Welded Steel Cages and Rockbolts
Romtech produces MIG welded cages for precast segmental tunnel linings. They are designed to suit the particular requirements of each manufacturer and are assembled from their 'Supermat' range of machine-manufactured fabrics and/or loose rebar. The company provides fast production on purpose-made jigs for speed and simplicity of placing on site, or at the precast factory. The cages are manufactured from ribbed type 2 (grade 460) reinforcement to BS4449 and/or BS4482 to a dimensional accuracy to +/- 5mm tolerance, or better where specified for prefabricated units. The entire manufacturing process is quality assured to BS EN ISO 9002, and all welding is carried out in accordance with BS7123 and BS5135, with welding personnel and their prefabrication facility CARES approved. Romtech is part of the ROM group, and has dedicated factories throughout the UK with a national and export distribution network. Full technical assistance is provided, and the firm has a proven track record on numerous major tunnelling projects, including the Channel Tunnel and, currently, the Copenhagen Metro. Major UK clients include Charcon. A wide range of accessory items that includes concrete plastic and wire spacers and hydrophilic joint sealants complements the product range. The company is set to expand worldwide, and is already active in the Asia-Pacific region.
Romtech also manufactures and supplies a complete range of rockbolts using standard Grade 460 Type 2 rebar, cut and threaded to the client's specifications. The bolts are supplied in a wide range of diameters from 10 to 50 mm, and are supplied complete with faceplate (flat or domed), washer (plain or hemispherical) and tensioning nut. Galvanised and epoxy coated rockbolts can also be supplied on request. The firm also manufactures a wide range of tunnelling related steel fabricated products such as weld mesh, lattice girders and segment cages. All ROM products are CARES approved and manufactured to BS EN ISO 9002.
Romtech Ltd, Wheaton Road, Witham, Essex CM8 3BU, UK, tel +44 (0)1376 53320, fax +44 (0)1376 533227, e-mail nick_blaney@rom.co.uk or visit www.rom.co.uk
Sireg SpA
Ground Improvement
Sireg manufactures and supplies a wide range of products for ground improvement and reinforcement, varying from sleeved grouting pipes, to composite materials for temporary and permanent ground consolidation, to drainage pipes. The possibility to wholly customise each product on client needs, and the continuous collaboration with some of the most important contractors and consulting engineers all over the world, put Sireg at the top of the list of European geotechical products manufacturers. Examples of recent important projects carried out with Sireg products are the Italian high speed railway, French high speed railway, and Egnatia Odos highway in Greece. Sireg has also supplied more than 55 t of carbon fibre bars to be used as permanent soil nailing for the Sunderland metro extension, the first application of carbon fibre for such work in U.K. and Europe.
Sireg SpA, Via del Bruno, 12, 20043 Arcore (MI), Italy, tel +39 039 627021, fax +39 039 615996, e-mail sales@sireg.it or visit www.sireg.it
SolData
Geotechnical Monitoring
Sol Data Ltd provides complete geotechnical and structural monitoring solutions to the civils and construction industries, covering every aspect from classical manual instrumentation techniques to hi-tech automated 'real-time' monitoring systems. Since the inception of the company, its monitoring technologies have been used to assess a wide variety of instrumentation requirements including bridge, viaduct, aqueduct and dam monitoring; buildings located near landslip zones; and subsurface structures, such as tunnels, bunkers and basements.
The company ethos is to work in partnership with clients in order to develop bespoke monitoring solutions, which exactly meet their requirements.
In particular, Sol Data specialises in the provision of automated real-time monitoring solutions, concentrating on the use of electronic instrumentation, and relatively new technologies such as robotic total stations and fibre optic systems.
SolData Limited, Foundation Court, Godalming Business Centre, Catteshall Lane, Godalming, Surrey GU7 1XW, UK, tel +44 (0)1483 425151, fax +44 (0)1483 425151, e-mail stuart.baker@soldata.fr or visit www.soldatagroup.com
Stabila UK Ltd
Consolidation Grouting
Stabila is a leading supplier of injection materials, equipment and accessories used for soil consolidation, water stoppages, and grouting of rock fissures in tunnelling applications. In municipal and heavy utility applications, Stabila products are used for the repair and/or waterproofing of concrete structures. The company offers technical training on various grouting topics, which can be tailored to suit customer requirements.
Activities include pressure grouting, cement grouting, soil stabilisation, water cut-off, sewer rehabilitation, concrete restoration, crack injection, and waterproofing. Products and services include potable water tanks, municipal services, underground utilities, hydro dams, mines and tunnels. Geotechnical applications include polyurethane resins, acrylate resins, microfine cement, sleeve pipes, grouting equipment, Hydrotite Waterstop, multi-paste sealant, injectable tubing, engineering services, and consumables.
Stabila UK Ltd, Unit 2, Baynards Green Farm, Bicester, Oxon OX27 7SR, UK, tel +44 (0)1869 346010, fax +44 (0)1869 345455, e-mail info@groutshop.com or visit www.grouters.com
Tunnelling Accessories Ltd
Materials, Equipment and Fittings
Tunnelling Accessories is the 'One Stop' shop for materials, equipment and fittings used in the construction of tunnels, including pipe jacking and microtunnelling.
TA will be using UC200I to highlight changes to their product range as well as new products and ventures and will have information on directional drilling machines from American Augers as well as information on ventilation ducting from ABC of Canada. ABC are now represented by TA in the UK and Ireland, and both companies are looking forward to continuing their success after supplying the Eurolink JV with all the ventilation ducting on the CTRL North Downs Tunnel.
In Dowelock, TA has increased its already comprehensive range of Cast-In products for use in segmental tunnel construction, Dowelock's unique design sets new standards in the jointing of tunnel segments without the need for bolts. Dowelock has very high resistance to shear and pull-out, without allowing the joint to relax.
Tunnelling Accessories Ltd, Sidney Little Road, Churchfields Industrial Estate, St Leonards, East Sussex TN38 9PU, UK, tel +44 (0)1424 854112, fax +44 (0)1424 854231, e-mail info@tunacc.demon.co.uk
Tunnel Engineering Services (UK) Ltd
Tunnelling and Ancillary Equipment
Tunnel Engineering Services (UK) Ltd has established an enviable reputation for the design and manufacture of tunnelling equipment for the construction industry. Utilising leading edge technology, qualified engineers design and build machines and equipment to the highest quality standards, providing a comprehensive service from concept through to commissioning.
TES (UK) Ltd has been designing and building tunnelling machines, back-up equipment, power packs and ancillary equipment such as muck haulage, winches, hydraulic cylinders, grouting equipment, and conveyor systems for many years. The company also provides workshop and site services for fabrications, hard facing, refurbishment and servicing of equipment, and are have a range of tunnelling equipment for hire. TES (UK) is the official UK and European distributor for trenchless equipment specialists Akkerman.
Tunnel Engineering Services (UK) Ltd, Heywood Street, Waterhead, Oldham OL4 2HA, UK, tel +44 (0)161 626 6005 or visit www.tesuk.co.uk
Van Elle Piling Ltd
Specialist Geotechnical Engineering Contractors
Van Elle offers a wide range of foundation systems, including large diameter piling, mini piling, underpinning, drilling and grouting, rock anchors, smartfoot precast foundation and several patented foundation repair systems. Most of these techniques have been developed in house by Van Elle engineers.
Driven by the HSE requirement to clean augers on CFA piling rigs, the Van Elle piling division has invented a patented award-winning auger cleaner, which is extremely effective in hazardous clay soil conditions where falling material may cause serious injury to operatives.
The Van Elle cleaner has numerous distinct advantages over others available on the market as follows: low initial purchase price; low fitting costs; low cost and infrequent maintenance; simple mechanical operation; no requirement for electric or hydraulic power.
Details of the cleaner are available on the Van Elle stand. CFA piling is just one of the many systems including precast concrete and steel tube driven piling that Van Elle installs.
Van Elle Piling Ltd, Kirkby Lane, Pinxton, Nottinghamshire NG16 6JA, UK, tel +44 (0)1773 580580, fax +44 (0)1773 862100, e-mail jon.fenton@van-elle-piling.co.uk
Webac Chemie GmbH
Polyurethane and Epoxy Injection Resins
Webac is a German company with branches and representations in numerous countries around the world, including the USA, Brazil, Egypt, UAE, Singapore, and throughout Europe. Being a specialist manufacturer of polyurethane and epoxy injection resins for over 20 years, Webac has one of the widest and most comprehensive ranges for waterproofing and concrete repair. Webac Systems are manufactured to a consistent high quality standard, which reflects in excellent products and application properties. Consequently they are used extensively worldwide, and in many tunnelling projects. Webac Systems also include Polyacrylate Gels, fully approved for use for curtain injection by German Railways, products for soil stabilisation, and other special materials, such as epoxy repair mortars, that can be applied even underwater.
Webac Chemie GmbH, Fahrenberg 22, D-22885 Barsbüttel, Hamburg, Germany, tel +49 (0)40 670 570, fax +49 (0)40 670 3227, e-mail info@webac.de or visit www.webac.com
Weidmann Plastics Technology AG
Glassfibre Reinforced Rockbolts
In tunnelling and mining worldwide, the name Weidmann has become synonymous with high quality, state of the art, glassfibre reinforced rockbolts.
The Weidmann exhibit will show the complete range of GRP rockbolts, such as resin and injection bolts, with the unique all-thread design. Also shown are GRP cable bolts and GRP self drilling bolts, together with accessories, resin cartridges and epoxy grouting materials.
Weidmann Plastics Technology AG, Neu Jonastrasse 60, 86440 Rapperswil, Switzerland, tel +41 55 221 4111, fax +41 55 210 4674, e-mail info@mhcschlaepfer.ch
Weldgrip
Strata & Ground Control
Weldgrip manufactures and supplies the following products for the civil engineering, tunnelling and mining industries: Fibregrip® and Gripforce® rockbolts and soil nails; Gopher and Turmag pneumatic drilling machines; drill steels and bits; gabions and welded mesh systems; and grout pumps.
Located in a purpose built factory in South Yorkshire, UK, Weldgrip provides a first class and responsive service throughout the UK and overseas.
As well as a major involvement in mining industries worldwide, Weldgrip products have played critical roles in prestigious civil engineering projects including the Barcelona to Madrid High Speed Rail Link, Edinburgh and Conway Castle stabilisation projects, Channel Tunnel, Athens and Paris Metros, and the Jubilee Line Extension in London.
Weldgrip, Whaley Road, Barnsley, South Yorkshire S75 1HT, UK, tel +44 (0) 1226 283438, fax +44 (0) 1226 731563, e-mail tech@weldgrip.com or visit www.weldgrip.com
Wirth GmbH
TBMs, Microtunnelling Systems, Pile Drilling Rigs
Wirth, an independent German company, was founded in 1895. With about 500 staff, the company manufactures a large range of drilling machines and units for civil engineering and mining at its Erkelenz factory.
The manufacturing programme includes: hard rock tunnel boring machines; shield machines for hard or soft rock; mobile tunnelling machines for various profiles in hard rock; shaft boring machines; air-lift shaft drilling machines; telescopic full face machines; shield mounted roadheaders; earth pressure balanced machines; full-face non-pressurised machines; rotary backhoe machines; mining and tunnelling roadheaders; mining and dinting machines; tunnelling and heading machines; surface miners; microtunnelling systems; directional drilling rigs; auger drilling rigs; and pile top drilling rigs.
Wirth TBMs of varying design, with diameters in excess of 12 m, have been proven in the hardest rock and in broken ground. Development in rock excavation, cutter design, bearing and drive systems, electronic monitoring and control systems is continuous. An extensive rock testing laboratory, an experienced engineering staff, and a state of the art manufacturing facility, all assure quality-built machines, delivered on time. Wirth is a qualified ISO 9001 supplier.
Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, Kölner Strasse 71-78, 41812 Erkelenz, Germany. PO Box 1660, 41806 Erkelenz, Germany, tel +49 (0)2431 83-0, fax +49 (0)2431 83 267, e-mail info@wirth-europe.com or visit www.wirth-europe.com
