...G. Barla; M. Barla; M. Bonini; D. Debernardi This paper describes a study undertaken to derive hazard scenarios for the excavation of the Kishanganga hydroelectric project headrace tunnel, Kashmir, India. The tunnel is to be driven in poor rock mass conditions (meta-sandstones, meta-siltstones...

... element methods for tunneling’. The aim of the project is to implement a fast and accurate method for the simulation of underground excavations without the need for the generation and subsequent refinement of a mesh. Figure 4 Comparison of quadratic Serendipity (a) and NURBS (b) basis functions...

... free-field ground movements obtained from approximate closed-form solutions. Parallel twin tunnels were constructed adjacent to the piles and measurements of axial force and bending moment in two of the piles that were instrumented have been reported. The agreement between measured and computed...