Page 350 - 360.revista de Alta Velocidad - Nº 5

Sepúlveda Abad, Silvia. Lastra de la Rubia, Emilia.

• Pressure sensors in ch 354 + 825 (in the middle of the tunnel, section 1) arranged in a
tunnel and in the vicinity of the nearest gallery (ch 354 + 885, section 2), as well as inside
the tunnel and as far away as possible from the entrance door to the tunnel. These sensors
are accompanied by their corresponding data acquisition equipment and also records the
temperature and humidity of the air.
• Triaxial anemometers inside the tunnel at ch 354 + 825 (section 1) and section 3 (ch 358 +
450) at the point where the plate is located with strain gauges. This is accompanied by a
corresponding data acquisition team.

• Train pass detection sensors have been added inside the tunnel in the central section ch 354
+ 825 (instrumentation section 1).

To summarize the instrumentation by sections arranged is as follows:
• Section 1, located at ch 354 + 825: tunnel pressure sensors, triaxial anemometers and strain
gauges.
• Section 2, at ch 354 + 885: pressure sensors in a gallery near the central section. Arranged
on the outside and inside of it.
• Section 3, in ch 358 + 450, has pressure sensors and triaxial anemometers.
• Section 4, at ch 358 + 568 (outside of the tunnel), in this section two sonometers separate
from each other 1m and at a distance of 50m from the outlet portal are arranged.

Figure 10. Scheme of the distribution of control sections in tunnel

348 360.revista de alta velocidad