What is a tunnel with a safety ventilation without a serious test of the same? Nothing to be exact.
Inframatic changes that by testing the safety-relevant aggregates.
Fire ventilation, using ultrasonic measuring devices in a cross arrangement, to test whether the air speed achieves sufficient performance even in the event of an incident. At the same time, we tested airflow visually, using smoke grenades.
These show “mercilessly” where any defects are.
In the case of the extension of the San Francisco Metro from Union Square to China Town, no doubt about it. The following tests were carried out:
- Ultrasonic cross-measurements of the airspeed across the whole tunnel section, 4 pcs. at the same time
- Smoke grenade test to make visible where the airflow goes
- Door force measurements to comply with regulations
- Noise measurements
- Anemometer measurements