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List of products by author: T. Babendererde
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EPB tunnelling in hard rock conditions and transition zones
Abstract: Various TBM projects around the world are digging in predominantly hard rock conditions – facing difficulties when weathered rock or even soft ground zones penetrate the tunnel profile. To tunnel through these „weak zones”, like in Oslo centre, is a risk to the environment and causes high costs for treating the soil or additional measures if not handled properly. So far, only one TBM project...
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Face support and stabilisation in soft ground TBM tunnelling
Abstract: The sufficient support of the tunnel face is of critical importance both during boring and during standstill. Many calculation models have been developed to calculate the required support pressure, but none ever made it into a standard. As the knowledge and understanding of the theory behind the more complex models sometimes is very limited, this paper will explain the general concepts of those...
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Pre-investigations for TBM tunnelling
Abstract: Tunnelling with tunnel boring machines (TBM) has become the selected excavation method for some infrastructure and hydropower projects in Norway the last years. Planning and preinvestigation of ground conditions is known to be costlier and more demandable for TBM tunnelling than for conventional drill and blast (D&B) tunnelling, which is the most commonly used excavation method in Norway. This...
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