Mehdi Hosseini

[Tunnel Engineering @TunnelEngineer1]

Our Online Tunnel Engineering Course is officially CPD Certified by The CPD Certification Service (UK)!
CPD-certified
Fully online and self-paced
Assessments included
Certificate issued upon completion
Register now and start your journey:
https://t.co/TR7LDLhss8

[CoinMarketCap @CoinMarketCap]

Join our ‘CMC Crypto Yearbook 2024-25’ Quest!

Win from a $5K USDT prize pool and get a Limited-Edition CMC-Yearbook 🔥

To Enter:
🔹 RT & Follow @CoinMarketCap
🔹 Follow us on CMC-Community
🔹 Visit the CMC Yearbook Website

Explore the Yearbook 👉 https://t.co/BrWy5B4t35

[Tunnel Engineering @TunnelEngineer1]

Tunnelling is combination of art and engineering!

[Tunnel Engineering @TunnelEngineer1]

Sydney Metro is Australia's biggest public transport project.
By 2030, Sydney will have a network of four metro lines, 46 stations and 113 km of new metro line.

Video courtesy of Sydney Metro
Video reference: LinkedIn Jo Haylen

#sydneymetro #tunnelengineering

[Tunnel Engineering @TunnelEngineer1]

A tunnelling project in Slovenia.
#tunnelcourse #TunnellingCourse #tunneltechnology #tunnellingpage #tunelfuturistico #tunelizacion #tunelfuturistico #tunnelengineering #artoftunnelling #tunnel #tunnelengineeringisthefuture #tunnel #tunnelling #tunneling #tunel #civilengineer

[Mehdi Hosseini @MehdiHo1356]

People don't go as fast as they can. They only go as fast as THE LEADER.

[Tunnel Engineering @TunnelEngineer1]

TBM cutter head on the he Broadway Subway Project, Vancouver Canada.

#tunnelengineering #artoftunnelling #tunnel #tunnelengineeringisthefuture #tunnel #tunnelling #tunneling #tunel #civilengineering #miningengineering #knowledge #learntunnelling #tunnelphoto #geotechnical

[Tunnel Engineering @TunnelEngineer1]

An air overpressure (air blast) is an atmospheric pressure wave emanating from the explosion in air.
This wave comprises:
• The audible part of the airblast (acoustic): higher frequency (from 20 to 20,000Hz)
• The sub-audible part of the airblast (infrasound): low frequency

[Tunnel Engineering @TunnelEngineer1]

TBM Launching at Surat Metro, India.
#tbmassembly #suratmetro #tunnelengineering #tunnelengineer #mechanizedtunnelling #tunnelboringmachine #tbm #tbmbreakthrough #tunnelling #tunneleducation #tunneling #undergroundspace #undergroundstructure #tunel #tunnel #tunnlindia

[Tunnel Engineering @TunnelEngineer1]

Tunnel Engineering is combination of art and engineering.
#tunnelengineering #artoftunnelling #tunnel #tunnelengineeringisthefuture #tunnel #tunnelling #tunneling #tunel #civilengineering #miningengineering #knowledge #learntunnelling #tunnelphoto #art #tunnelart #Engineering

[Tunnel Engineering @TunnelEngineer1]

A tunnel boring machine (TBM) is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.
TBM type is selected based on the ground and groundwater condition and project condition.
#tunnelengineering #tunnelling #tunneling #tunnel

[Tunnel Engineering @TunnelEngineer1]

Principle behind blasting in tunnel is to create free face by means of cut holes and then exteding the blasting to full face of tunnel.
Blasting relies on two main factors:
1. Shock wave to create cracks in the rock
2. Expansion of gas to move into the cracks to crush the rock.

[Tunnel Engineering @TunnelEngineer1]

Tunnel Engineering is the future.

[Tunnel Engineering @TunnelEngineer1]

Tunnels and underground spaces are the most sustainable structures human being has ever made. When an underground structure is built it will be used for centuries!
#Sustainability #sustainabledevelopment #sustainable #tunnel #undergroundspace #underground #undergrounddevelopment

[Tunnel Engineering @TunnelEngineer1]

Sometimes in big construction projects procedures become more important than technical matters! Construction projects require pragmatic technical people to do the job not more procedures to stop the project.
#noprocedure #Construction #pragmatic #technical

[Tunnel Engineering @TunnelEngineer1]

Safety is not about wearing Personal Protective Equipment (PPE) by operatives. Safety is a culture driven by leaders. If leaders believe in safety in their heart, their construction site will be safe and great place to work for everyone.
#safety #SafetyFirst #culture #PPE #leader

[Tunnel Engineering @TunnelEngineer1]

In construction projects safety should not be a priority. Safety is a value on top of all priorities!

#safety #SafetyFirst #priority #value #Construction #toppriority

[Tunnel Engineering @TunnelEngineer1]

Jumbo drill is a common drilling machine in rock tunnels to drill horizontal holes for blasting. It is also used for drilling rock bolts.
Jumbo drill is a very flexible machine which can drill in different directions.
It is also common to use Jumbo drill for fore poling holes.

[Mehdi Hosseini @MehdiHo1356]

Happy Persian New Year! Persian new year or Nowruz which is celebrated by many people around the world is at the start of spring.

[Tunnel Engineering @TunnelEngineer1]

Reception shaft after completion of secondary lining in Storm Tunnel project in London.

#construction #tunnel #tunnelling #tunnelengineering #tunnelengineer #tunneling #London #tunel