ABSTRACT
This paper summarizes recent efforts to use continuous monitoring data produced on tunnel boring machine and conventional excavation tunneling projects to estimate tunnel-induced deformation, as-encountered ground conditions and tunnel construction operations. This so-called information engineering approach is aimed at reducing geotechnical risk during construction. The successful implementation of developed approaches is presented herein on three projects in the USA, including the Northeast Boundary tunnel project in Washington DC, the Regional Connector Transit Corridor tunnel project in Los Angeles, and the Northgate Link tunnel project in Seattle.
