ABSTRACT
The stretch forming the object of this article includes the following functional elements (Fig. 1):
− Guadalhorce Station (Km. 0 + 735 – Km. 0 + 931).
− Airport Station (Km. 2 + 870 – Km. 3 + 110). − Initial Pumping Shaft (Km. 0 + 420). − Emergency Exit, Ventilation Shaft and Pumping
Shaft (Km. 1 + 892).