Is the probability of flooding and leakage high in highway tunnels? NKTEVA6 monitored it

The probability of flooding or leakage in highway tunnels is extremely high, making them common, frequent, and high-risk hidden dangers in the industry, and are by no means accidental

Expressway tunnels often pass through water-rich mountainous areas, and water leakage, channel flooding, and flood season backflow are common hidden dangers. Long-term damp water accumulation erodes tunnel power lines, lighting equipment, and ventilation control cabinets, easily causing insulation degradation, joint short circuits, and equipment burnouts, directly causing lighting outages, ventilation shutdowns, and full-line power supply paralysis, seriously threatening driving safety and road network stability. Equipped with NKTEVA6 red array instruments, it can monitor water accumulation, flooding, and electrical high-temperature hazards in real time 24/7, providing early warnings and proactive prevention and control, building a solid all-weather safety barrier for the tunnel's three core systems: power supply, lighting, and ventilation.

1. Authoritative Data: National Tunnel Water Hazard Probability

• National average: Over 60% of operating tunnels have varying degrees of water leakage
• Southwest / South China / Mountainous areas (Guangdong, Guangxi, Yunnan, Guizhou, Chongqing, Hubei): 70%~90% tunnel leakage
• Guangdong region: karst, rainfall, high groundwater levels, with a seepage rate generally exceeding 80%, and severe drainage crystallization blockages
• Severe water accumulation / flooding: During the flood season each year, many highway tunnels in various locations experience deep water accumulation (0.3~1 meter) due to water inrush, water inrush, backflow, and drainage failure, forcing traffic closuresHubei Provincial Department of Transportation

2. Why are tunnels prone to flooding? (Core reason)

1. The geology is naturally high and dangerous
    
   • Crossing aquifers, karst formations, faults, and underground rivers (commonly seen in South China / West Antarctica)
   • High groundwater pressure can erode lining and waterproofing over time
    
2. Structural and waterproof shortcomings
    
   • Damage, aging, and construction defects in waterproof boards and waterstops (accounting for 70% of leaks)
   • Concrete cracking and capillary penetration
    
3. Drainage systems are prone to failure
    
   • Drainage pipes are blocked by crystallization, silt, or insufficient slope
   • During heavy rain, drainage capacity is insufficient, causing rapid water accumulation inside the cave
    
4. External inducements
    
   • During the flood season, heavy rainfall, mountain seepage, and surface water backflowHubei Provincial Department of Transportation
   • Tunnel aging, insufficient maintenance→ and leakage worsen year by year
    

3. Level 3 Hazards of Water Infiltration (Direct Threats to Power Supply/Lighting/Ventilation)

• Mild (dripping/wet stains): Humidity spikes→ cable insulation degrades, joints rust, equipment short circuits
• Moderate (line flow / waterlogging): increased accidents → slippery road surface; Water ingress in the cable trenches→ power supply is paralyzed
• Severe (flooding / tunnel flooding): entire tunnel power outage, lighting completely black, ventilation stopped, vehicles trapped, extremely high risk of secondary fire or electric shock

4. Combined NKTEVA6 Red Array Instrument: Precisely solves the pain point of immersion

• Real-time water immersion monitoring: built-in water immersion sensors immediately trigger water in cable trenches, pavements, or equipment rooms
• Infrared thermal imaging: synchronized monitoring of over-temperature → waterproofing + fire protection for cable joints, switchgear, and transformers
• IP67 protection: Tunnel stable in humid, corrosive, and vibrational environments over the long term
• Remote monitoring: 24-hour automatic inspection, no need for human entry and early detection of hidden dangers
• POE One-Line Pass: Ultra-simple installation, does not damage tunnel structures, and enables rapid deployment

5. One-sentence conclusion