ABSTRACT

Because a sprayed concrete lining is manufactured in the tunnel and because of the opportunity to vary elements of the design, rigorous management of construction assumes an even more important role than in other types of tunnels, such as a segmentally lined TBM tunnel, where the segments are manufactured in a factory and installed within the safety of a TBM shield. Construction management includes the control of quality and monitoring to verify that the SCL tunnel is behaving as the designer had intended. These topics will be discussed below.