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Abstract: Consecutive measurements play a key role in the successful construction of underground facilities. While surveying and deformation monitoring are considered as indispensable during tunnel excavation, the prediction of geological conditions ahead of the face and around the tunnel cross-section is a topic of ongoing research. Geophysical methods provide a useful tool to meet this challenge. Since...
Abstract: The paper presents the Geodata TunnelMapper, a novel 3d tunnel face mapping system based on a panoramic camera developed to document the tunnel face area in NATM projects. In particular, the system components, the measurement process, the data acquired, the products derived, the test results achieved and the experience obtained from applying the system at current NATM tunnel projects such as...