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Special Equipment for Tunnel Construction NTB_RS_A4_D.qxd 26.03.2007 8:53 Uhr Seite 1 The Liebherr Group of Companies Special Equipment for Wide product range State-of-the-art technology The Liebherr Group is one of the largest construction To provide consistent, top quality products, Liebherr Tunnel Construction equipment manufacturers in the world. Liebherr’s high- attaches great importance to each product area, its value products and services enjoy a high reputation in components and core technologies. Important modules many other fields, too. The wide range includes domes- and components are developed and manufactured in- tic appliances, aerospace and transportation systems, house, for instance the entire drive and control techno- machine tools and maritime cranes. logy for construction equipment. Exceptional customer benefit Worldwide and independent Every product line provides a complete range of models Hans Liebherr founded the Liebherr family company in in many different versions. With both their technical excel- 1949. Since that time, the enterprise has steadily grown lence and acknowledged quality, Liebherr products offer to a group of more than 100 companies with over a maximum of customer benefits in practical application. 32,000 employees located on all continents. The corporate headquarters of the Group is Liebherr-International AG in Bulle, Switzerland. The Liebherr family is the sole owner of the company. www.liebherr.com 1 Rueckseiten DIN.indd 2 16.03.10 15:12 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 11 25.11.200923.03.2010 11:33:5215:33:11 Uhr Liebherr Special Equipment for Tunnel Construction Crawler Excavators Liebherr tunnel excavators are special machines which can be used in all conventional types of tunnelling applications: After tunnel drilling ma- chines have been used to create cross-tunnels, 1when explosives are being used for secondary profiling, and, of course, for direct excavator tunnelling. Particular features of these machines are their economic opera- tion, high performance, and reliability. 2 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 22 25.11.200923.03.2010 10:37:5815:33:11 Uhr Wheel Loaders Crawler Loaders Liebherr tunnel wheel loaders are spe- Thanks to their high break-out forces, cially designed for use in tunnel appli- excellent manoeuvrability, and robust cations. The advantages of the wheel equipment, Liebherr crawler loaders are loader´s hydrostatic drive are proven in the ideal machines for tunnel construc- 2diffi cult tunneling applications. The advantages are: 3tion. Depending on the operational specifications, they reduced fuel consumption through improved utiliza- can be configured with individual additional options to tion of the installed engine´s output, minimal brake tailor the machines to particular applications and con- wear through the hydrostatic braking effect of the ditions. A high-performance climate control system drive and reduced tyre wear thanks to stepless adjust- matched to a pressurized cab helps create a pleasant ment of the tractive force in line with what is required. working environment. The Liebherr particle filter is also Also, the Liebherr particle fi lter reduces particulate optionally available to provide cleaner air in the tunnel. emissions by 99 %. 3 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 33 25.11.200923.03.2010 10:38:0415:33:11 Uhr 1Crawler Excavators Liebherr tunnel excavators are special machines which ing used for secondary profiling, and, of course, for di- can be used in all conventional types of tunnelling ap- rect excavator tunnelling. Particular features of these plications: After tunnel drilling machines have been machines are their economic operation, high perform- used to create cross-tunnels, when explosives are be- ance, and reliability. 4 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 44 24.11.200923.03.2010 11:47:1015:33:11 Uhr Economy with High Performance Reliability Tunnel construction is one of the toughest environments Liebherr tunnel excavators are the result of decades of for excavator operation that exists. The operation of a practical experience in the development of truly reliable tunnel excavator becomes efficient when the machine, special equipment for demanding situations. All the ma- despite the harsh conditions, can cut out the tunnel terials used have undergone intensive, long-term tests profile required as rapidly as possible but in economi- and meet high Liebherr quality standards even under the cal fashion. This means that a tunnel excavator must hardest conditions. In addition to being extremely robust, produce a high hydraulic capacity and, above all, be the attachment on Liebherr tunnel excavators is able to provided with operational fittings which are tailored to rotate 2 x 45°. The mechanical quick coupling system the particular application. The hydraulic system used is provided with a reinforced locking unit and a wear with Liebherr tunnel excavators is optimized for milling. protection element on the hook side. The sophisticated Liebherr tunnel excavators meet all the high demands concept and the tried and trusted quality make Liebherr imposed in tunnel construction in every respect, with tunnel excavators the absolute standard for reliability. both the basic machine and the attachment precisely Safety matched to this particular type of work, and consistently The special cab is safeguarded with FOPS and FGPS as designed to achieve real economical performance. standard. To prevent damage from falling rocks, all the hoses in exposed locations on the equipment fittings are additionally secured by protection plates. The bucket cylinder is also attached in a lower position, and a cover fitted to both the lifting rams protects the hoses running between them. Comfort Characteristic of the special cab on the Liebherr tunnel excavator are the ergonomic design and high standard of operating comfort and convenience. The windows on the right and at the rear are fitted with polycarbonate panes, resistant to scratches and impacts, and feature extremely good visibility properties. As an option, the cab is also available with polycarbonate window panes all round. 5 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 55 24.11.200923.03.2010 11:47:1815:33:11 Uhr Crawler Excavator for Tunnel Application • Rotatable boom with 2 x 45° mounting • Particle filter certified in accordance with VERT Standard • Hoses on the attachment laid on the side and covered (reduction of emissions from real machines in tunnel • Pipe routing on the attachment protected by metal plates construction) • Special uppercarriage protection • Special tunnel cab in heavy-duty design with seat • Protective box made of stainless steel for all electronics made of artificial leather and electrical modules on the uppercarriage • FOPS and FGPS fitted as standard • Power circuits protected by easily accessible • Polycarbonate windows with high impact resistance automatic circuit-breakers on the right side and rear of the cab • IP 65 protection for optimum protection against • 3000 mm dozer blade with cylinder protection as standard dust and moisture • Dirt scraper on undercarriage • All cables with high resistance insulation against mechanical and heat damage 6 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 66 24.11.200923.03.2010 11:47:4115:33:11 Uhr R 924 Compact R 944 C R 924 Compact Tunnel Crawler Excavator Tunnel Tunnel Operational weight kg 32,440 43,490 - 43,950 ft m Engine capacity kW/hp 130/176 190/258 30 9 8 25 7 V R 924 Compact Tunnel (Version 5 m) 20 6 5 15 ft m 4 10 3 30 9 H 7370 5400 2 5500 8 5 25 1 7 0 0 20 6 V -1 1510 5 -5 15 -2 4 -3 -10 10 3 H -4 6575 5125 5250 2 -15 5 924 -5 1 10 9 8 7 6 5 4 3 2 1 0 m 0 0 30 25 20 15 10 5 0 ft 920 -1 R 944 C Tunnel -5 -2 -3 -10 ft m 40 -4 12 -15 -5 11 35 10 9 8 7 6 5 4 3 2 1 0 m 10 30 25 20 15 10 5 0 ft 30 9 8 25 V 7 20 6 5 15 4 10 3 6100 H 5900 2 5 1 10430 0 0 -1 -5 -2 3730 -3 -10 -4 -15 4300 -5 11 10 9 8 7 6 5 4 3 2 1 0 m 35 30 25 20 15 10 5 0 ft Protection for boom and hydraulic cylinders Special tunnel cab 7 BP_Tunnel_de_01.inddBP_Tunnel_enGB.indd 77 24.11.200923.03.2010 11:48:3415:33:12 Uhr 2 Wheel Loaders Liebherr tunnel wheel loaders are specially designed installed engine´s output, minimal brake wear through for use in tunnel applications. The advantages of the the hydrostatic braking effect of the drive and reduced wheel loader´s hydrostatic drive are proven in diffi cult tyre wear thanks to stepless adjustment of the tractive tunneling applications. The advantages are: reduced force in line with what is required. Also, the Liebherr fuel consumption through improved utilization of the particle fi lter reduces particulate emissions by 99 %. 8 BP_Tunnel_BILD_8_9.inddBP_Tunnel_enGB.indd 8 8 23.03.201025.03.2010 15:33:12 8:59:24 Uhr Economy with High Performance Safety In comparison with conventional drive systems, the hy- Liebherr wheel loaders adapted to the harsh operating drostatic drive used by Liebherr wheel loaders allows conditions in tunnels are fitted with a large number of for a reduction in fuel consumption of up to 25%. This protective equipment. These include, for example, a cuts operating costs and reduces burden on the envi- cab developed specifically for tunnel construction with ronment. At the same time, the use of the hydrostatic armoured glass, four operational spotlights on the rear, drive means that the Liebherr Diesel engine can be in- bucket cylinders with piston rod protection, and the rear stalled in a special position, lengthwise at the rear, with collision protection. the output shaft pointing backwards. In comparison with Comfort conventional wheel loaders, this leads to a noticeably The ultra-modern cab design with advanced ergonom- lighter operating weight with a higher tipping load and ics, continuously variable Liebherr driveline with 2plus2 greater production capacity per operating hour.
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