The role of drainage ditches in tunnels

1. Prevent water accumulation: The drainage ditch in the tunnel can effectively collect and discharge rainwater, groundwater and other water sources that may seep into the tunnel, preventing water accumulation inside the tunnel and keeping the tunnel dry.

2. Maintain structural safety: standing water may cause corrosion, cracking or other damage to the tunnel structure. Drainage ditches can reduce these risks, extend the service life of the tunnel, and ensure the stability and safety of the tunnel structure.

3. Improve ventilation conditions: Water accumulation in the tunnel may affect the normal operation of the ventilation system. Removing accumulated water through drainage ditches can ensure air circulation in the tunnel and improve the air quality in the tunnel.

4. Reduce accidents: Water accumulation may cause traffic accidents in tunnels, such as skidding, brake failure, etc. Drainage ditches can reduce the risk of these accidents and improve tunnel driving safety.

5. Facilitate maintenance and inspection: Keeping the interior of the tunnel dry will help maintenance personnel conduct regular inspections and maintenance of the tunnel, and promptly discover and deal with potential safety hazards.

6. Environmental protection: Drainage ditches can guide sewage and wastewater in the tunnel to treatment facilities to avoid direct discharge of sewage into the surrounding environment and reduce the impact on the surrounding ecological environment.

In summary, drainage ditches play an important role in tunnel engineering and help ensure the safe, stable and environmentally friendly operation of the tunnel.