role of geosynthetics in tunnel engineering
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The role of geosynthetics in tunnel engineering is manifold. An absolute essential in engineering, geosynthetics find applications in transportation, geotechnical, and geoenvironmental engineering. Constantly striving to serve you better, you can count on Ocean Geosynthetics for all your tunnel engineering needs. Discover more information here - https://www.oceangeosynthetics.com/role-of-geosynthetics-in-tunnel-engineering/TRANSCRIPT
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Role of Geosynthetics in Tunnel Engineering
Tunnel engineering is completely underground without
disturbing the surface. The first tunnel dates back to the
Egyptian and Babylonian eras about 4000 years ago. The
tunnel connecting the royal palace to the temple was brick-
lined and 910 m long. The role of geosynthetics in
tunnel engineering is manifold.
Constantly striving to serve you better, you can count on
Ocean Geosynthetics for all your tunnel engineering
needs
An absolute essential in engineering, geosynthetics find applications in transportation, geotechnical, and
geoenvironmental engineering. There is heavy use of geosynthetics in tunnel engineering.
Some interesting tunnel facts:
Tunnels are engineering marvels that facilitate transportation.
The Gotthard Base Tunnel running under the Swiss Alps is the world’s longest and deepest tunnel.
Considered a civil engineering triumph, this tunnel connects northern and southern Europe.
The Seikan Tunnel in Japan is yet another record-setting longest railway tunnel of 53.85 km.
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What is tunneling/tunnel engineering?
Constructing a tunnel, the science and engineering associated with
it is what tunneling or tunnel engineering is all about. Various
construction methods of tunneling include:
● Cut and cover tunneling
● Bored tunnel or mechanized tunneling construction is in situ without removal of ground above using
the TBM or tunnel boring machine
● Drill and blast, which is the conventional tunneling method
The basic concept of tunneling or tunnel construction involves three steps:
● Excavation (drilling/blasting)
● Application of shotcrete (sprayed concrete) to protect and reinforce with rock bolts.
● Concrete layering. Since tunneling is underground level, and the natural ground has some
amount of groundwater, it is essential to provide waterproofing and a drainage system.
In conventional tunnels, between the shotcrete and concrete layers is the waterproofing membrane
and drainage.
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Advantages of using Geosynthetics in tunnel engineering
● The low permeability of geotextiles and geomembranes is excellent for waterproofing.
● Easy to deploy in any configuration, horizontal, vertical, or overhead, and with high elongation
strength, they bridge old and new cracks.
● Resistant to swelling, rotting, aging, puncture, and chemicals, they combat various weather
conditions.
● There is no cross-sectional area reduction since geomembranes are thin and do not compromise
the tunnel diameter.
● Highly durable and reliable even under high hydraulic pressure
● Geosynthetics also help with the rehab and repair of old tunnels
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Ocean Nonwovens Pvt. Ltd.
With stringent product testing and extensive research in place, Ocean Geosynthetics is the brand you
can trust for projects requiring geosynthetics in tunnel engineering. Contact us, to discuss your next
project.
Ocean Nonwovens Pvt. Ltd.RR-24, CONTACT US
Second floor, Mianwali Nagar, [email protected]
Main Rohtak road, Near Peeragarhi - 011-45120291
Metro Station,New Delhi-110087, India
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