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3. Mining and Construction MECHANIZED ROCK EXCAVATION WITH ATLAS Copco – NO 3 / 2012. Mexican masters of mining Tunnels ease Meet the star Reducing the traffic on India’s performers of booms in Naples highways MINExpo subway Page 3 Page 12 Page 29 EDITORIAL CONTENTS 3 16 18 e are currently celebrating FEATURES Tunneling to the future in India. our 60th year of operations 3 in Mexico and next year W Probing the stars of MINExpo. will be Atlas Copco’s 140th year in 12 business. Back then, in 1952, things Insight on Mining: were certainly different. Hard, manual 16 Experts discuss the industry’s needs. labour, extreme temperatures, vibra- 29 tion, noise, accidents and injuries were Mechanized magic in Mexico’s mines. a way of life. 18 Since those dark, backbreaking days, there has been an amazing trans- 29 Raiseboring solution in the Naples subway. formation. Today’s mining industry is a fantastic environment characterized 32 Roof bolting Finnish-style. by automation, efficiency, high pro- ductivity, low energy consumption, PRODUCTS & PROGRESS ergonomic design and not least, safety. 11 QL hammer is a hit in Korea. As you can read in this issue of M&C, the great mines of Mexico, 28 First class air for Czech coal mines. 32 such as the Fresnillo mines, are typi- cal examples of this process of mod- 34 New RC kit for Pit Viper drill rigs. ernization and mechanization – and we are proud to be a part of it. TECHNIcaLLY SpEakING But that doesn’t meant we can sit 26 Why bit grinding makes perfect sense. back and rest on our achievements. In the current economic climate, it is MARKETPLacE & IN BRIEF News from around the world. more important than ever to find more 34 efficient ways of doing things and support our customers in their efforts to find sustainable solutions. Like many other parts of the world, Mexico’s minerals and metals con- tinue to be in high demand and we are responding in all areas. Innovation and commitment to the long-term needs of the industry has MINING & CONSTRUCTION is pub lished by Atlas TRADEMARKS AND REPRODUCTION OF ARTICLES Copco. The magazine fo cus es on the company’s All Atlas Copco product names (including but not been the driving force for success in know-how, prod ucts and meth ods used for drill ing, limited to Pit Viper, ROC, Boomer, Elemex, Symmetrix, Mexico over the past 60 years. We bor ing, rock re in force ment and load ing world wide. SmartROC, COP and Secoroc) are registered trademarks of one or more Atlas Copco Group companies. intend to remain just as dedicated for PUBLISHED BY Atlas Copco Rock Drills AB, SE-701 91 Örebro, Sweden. www.atlascopco.com For question s regarding free reproduction of articles, the next 60 years and beyond with an Tel: +46 (0)19 670 70 00. photos or artwork in this magazine, please contact the Editor or the Publisher. even stronger focus on safety and the PUBLISHER Ulf Linder, e-mail: [email protected] SAFETY FIRST environment. EDITOR Terry Greenwood, e-mail: [email protected] Atlas Copco is committed to comply with or exceed all global or local safety rules and regulations for personal ADVISORY BOARD Ulf Linder, Mikael Wester, safety. However, some photographs in this magazine Lars Bergkvis t, Anna Dahlman Herrgård. may show circumstances that are beyond our control. EDITORIAL PRODUCTION & DESIGN All users of Atlas Copco equipment are urged to think Greenwood Com munications AB, Box 5813, safet y first and always SE-102 48 Stockholm, Swe den. use proper ear, eye, Tel: +46 (0)8 411 85 11. head and other protec- CARLOS CAICEDO www.greenwood.se tion as required t o General Manager, Mining and Rock Excavation PRINTED BY Modintryckoffset AB, Sweden 2012. minimize the risk of WEBSITE www.miningandconstruction.com Atlas Copco Mexico personal injury. >>>>> TUNNELING IN INDIA >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On the MOVE in theHIMALAYAS New tunnels will make famous mountain road shorter, easier and safer India’s surging economy is good news for the people of Jammu & Kashmir, the country’s northernmost state. Here, the famous National Highway 1A is being upgraded by driving tunnels through the mountains, cutting time, improving safety and bringing the people of the region closer to the rest of the country. M&C reports from the foothills of the Himalayas. MINING & CONSTRUCTION – 3 / 2012 3 >>>>> TUNNELING IN INDIA >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Srinagar Jammu Srinagar NH 1A Qazigund–Banihal Tunnel Jammu INDIA The Boomer fleet challenge The new twin tunnel between Qazigund and Banihal presents technical and logistical challenges for the drill rig fleet. unneling through the mountains of Austrian Tunneling Method (NATM) Jammu & Kashmir is no easy task of sequential excavation and temporary T and the project under way between support. “You can’t use tunnel boring Qazigund and Banihal, a few kilometers machines in the Himalayas,” Sridhar north east of Jammu, is no exception. points out, “you can only use NATM, Here, engineers are driving two par- and for NATM you need Atlas Copco allel tunnels, 11 m wide, 7 m high and Boomers.” 8.5 km long in extremely poor ground conditions. From manual to automatic The work is being done by Navayuga In 2011, Navayuga made the transition Engineering Company (NEC) using a fleet from direct control system face drill- of six Boomer drill rigs from Atlas Copco. ing rigs to Altas Copco’s computerized As NEC Managing Director C. Sridhar E-series Boomer rigs with Advanced points out, the poject presents significant Boom Control (ABC). challenges. The six drill rigs in its fleet consist of “Normally for tunnels this long we four Boomer E2 C two-boom rigs and would have at least four adits – one at two Boomer XE3 C three-boom rigs, each end and two in the middle,” he says, equipped with high reach boom consoles “but we have only two openings to work and semi-automatic ABC Regular. from, which are the two portals. Since the E-series Boomer rigs set the “This means that all materials and pace for the excavation cycles, NEC has equipment will be traveling a distance of opted for a COP Care service plan for the more than four kilometers to and from rigs’ COP 1838 rock drills, to ensure the the only entrances to the headings, and highest rate of availability. Or as Sridhar this requires additional consideration for puts it: “If the Boomer is idle, everything such things as lighting and ventilation.” is idle.” The geology is also problematic. Srihar Navayuga chooses to handle all other explains that the rock conditions are maintenance itself, but to provide 24/7 poor and varies continuously through support for the rock drills, two Atlas mudstone, siltstone and soft sandstone Copco service engineers are stationed on and these variations, in turn, demand site – Abhoy Biswas at the South Portal different types of rock support. and Raju Sharma at North portal, each The engineers are using the New with mobile service containers. 4 MINING & CONSTRUCTION – 3 / 2012 >>>>> TUNNELING IN INDIA >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> On schedule: Atlas Copco service technician Abhoy Biswas with the Atlas Copco Boomer E2 C. Our suppliers must have technical competence and advise us of our options. C.Sridhar, Managing Director of NEC Choosing a supplier to feel that we trust the company for the Navayuga was formed in 2006 and now value of its equipment and that includes has more than 1 000 engineers working service and support which are excellent on projects in India and overseas and with Atlas Copco.” says it prefers to work with one equip- As an example, Sridhar cites the pur- ment supplier per assignment. chase of a two-boom Boomer equipped Sridhar explains: “When it comes with the Rig Control System (RCS). Its time to procure new equipment, we speed, precision and output more than don’t want to waste time debating which offset the additional cost over a direct manufacturer to buy from. We want only control system. The Boomer E2 C and a 30-minute conversation of a fair cost XE3 C rigs were good value. and an arrangement for when it will be Sridhar concludes: “We are very happy delivered. That’s it.” with Atlas Copco for the technical com- Several critical factors influences this petence and value of their drill rigs, and decision. “First and foremost, the manu- especially for their after sales support. facturer has to be knowledgeable,” con- We consider them to be family.” tinues Sridhar. “We must be able to trust The computerized controls make that the company has expert knowledge the six Boomer rigs easy to use. In the to advise us of our options. They must Qazigund–Banihal tunnels they employ know the work we have to do as well as lasers for positioning and set-up. Two we do – not just sell equipment. We need alignment plates on the boom are aligned MINING & CONSTRUCTION – 3 / 2012 5 >>>>> TUNNELING IN INDIA >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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