Imaging ahead of a tunnel boring machine with DC resistivity : a laboratory and numerical study
Tunnel Boring Machines (TBMs) are powerful tools for tunneling and underground construction, which excavate material and install a segmental concrete tunnel liner for support. However, unknown ground conditions pose a significant risk to tunneling operations and any damage to the machine can be disastrous to a project. As such, there is a need for tools which look ahead of the TBM for potential hazards during tunneling, including water saturated zones, faults, boulders and metal pipes. Geophysical methods offer the capability to image ahead of tunneling in order to prevent damage to the machine ...
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