FEASIBILITY STUDY OF THE INCREMENTAL LAUNCHING METHOD FOR CONSTRUCTION OF AN IMMERSED TUNNEL

Abstract

The result of feasibility study of the incremental launching method for construction of an immersed tunnel is described in this report. Incremental launching method was originally developed for the construction of bridges. Technical concept of this method is introduced to the construction of immersed tunnel underneath the fairway in the port. Technical issues are studied through the feasibility study on some immersed tunnel. The present study shows that this new method solves most of the construction problem for the conventional method in use and reduce the construction cost.