摘要: |
Periodical checking of all the cuttings for the access to the El Cadi tunnel are carried out in order to test the degree of stability in short, medium and long term, with a view to planning specific or general work so as to guarantes safety for the user and the concession. The work is carried out by qualified personnel in the wake of the most severe climatic conditions, specific test samples (glass) and general test samples (photographic control) being installed, in addition to a statistical analysis of the discontinuities and their development in time. |