2. What We Build
  3. Tunnelling & Underground Works

What We Build

 Tunnelling & Underground Works

Having built some of India’s longest tunnels, widest caverns and deepest shafts, HCC has acquired expertise in all kinds of underground technologies. The world’s first successful TBM tunnelling experience in the Himalayas, experience in tackling the world’s most adverse geological occurrence, the world’s deepest surge shaft and India’s first strategic oil storage cavern bear a testimony to HCC’s technological kno-how and strength.

    A forerunner in the field of engineering and technology innovation in underground works lead to:
    • India’s first railway tunnel
    • India’s first underground powerhouse
    • 2 out of India’s 5 largest underground powerhouses
    • 2 out of India’s 5 largest pumped storage powerhouses
    • India’s longest railway tunnel
    • Some of India’s longest power tunnels
  • Over 337 km of tunnelling, with 183 km in the treacherous Himalayan region
  • India’s leading TBM tunnel constructor – Over 70 kms built with TBM
  • Has built almost all kinds of tunnels and underground works
    • Hydroelectric Power Caverns
    • Tunnels
    • Pressure Shafts
    • Surge Shafts
    • Access Shafts
    • Strategic Oil Storage Caverns
  • HCC is well versed with almost all kinds of tunneling and underground work methodologies
    • Conventional Drill Blast method
    • Tunnel Boring method
    • New Austrian Tunneling Method
  • Capability to build tunnels and underground works for various purposes like Hydroelectric Power, Water Supply, Sewerage, Transportation, Strategic Oil Storage etc
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