List of products by author: B. Liljestrand

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  A Finnish method for draining in drill and blast tunnelling

  Abstract: Drainage of rock tunnel surfaces has shown to have a significant impact on project cost, time and on tunnel quality. Requirements might be set high and work can be extensive. According to research notes a threefold structure of pre-grout, rock drains and shotcrete is required to get dry conditions in the tunnel spaces. Thus, the objective is to drain the dripping or leaking water or even...

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