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2015FallShotcreteEMag

Committee Chair Memo the most important. I worked on the contractor’s side, the The mission statement of the underground owner’s side, and as an external expert. Because my area of expertise is conventional tunneling, the vast majority of these committee is: “To educate and promote the projects included shotcrete. Actually, shotcrete is currently use and proper application of shotcrete to the probably the most important construction material used in underground construction and mining industry.” conventional tunnel construction and rehabilitation projects, after classical hard rock tunneling. The educa- tion of all parties involved and the promo- tion of the capabilities of shotcrete is of the utmost importance to match the expectations with the executed work. Be However, the quality of the final product is highly dependent on the proper applica- manship of the nozzleman and the crew productive.- tion. This of course includes the crafts on site, but also includes the proper design, inspection, and QA/QC. The proper application of shotcrete in the wider sense is a team effort of everybody involved in an underground project. Civil construction and mining are two different industries. Despite the fact that they look very similar, they are in fact very different. While the purpose of a civil project is primarily the provision of an underground space, the underground activities in mining are mostly just pro- viding temporary access. While the driver of civil projects is longevity, the driver in mining is an investment in a means to reach other goals—that is, the product mined. Therefore, the mission statement mining. However, the technical chal- Take splits underground construction and application, with the additional challenge control. lenges of the shotcrete logistics and to place concrete overhead on a natural surface, are the same in both. underground depends on a holistic view The most versatile Gunite batchThe successful application of shotcrete body involved in the process—owner, plant on the market today.- and understanding of the project. Every designer, contractor, subcontractor, and supplier—has to understand and respect the special needs and capabilities of what can and can’t be done. Bringing the dif- Visit our website today 800.247.2464 ferent parties together, learning from each www.CemenTech.com sales@cementech.com other, and then working together on the successful completion of underground Units in stock now projects—that’s the goal. If you would like to participate in the ASA Under- ground Committee, please contact me, Axel Nitschke, Shannon & Wilson. I’m looking forward hearing from you. Shotcrete • Fall 2015 5


2015FallShotcreteEMag
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