🚀Let’s go! ✅ These two images illustrate crucial stages in tunnel construction and design, from both structural and detailed engineering perspectives. The first provides a cut section view showing how waterproofing, primary lining, and secondary lining are layered to resist both soil and water pressures. Proper sealing, joint design and drainage beneath the invert are taken into account to protect long-term durability and maintain serviceability. The second image is a technical drawing that com

There are many methods of tunnel construction, each requiring specialist skills and equipment. These include techniques such as bored tunnels using Tunnel Boring Machines (TBMs), sprayed concrete lined tunnels, tunnels constructed by blasting with explosives, and tunnels constructed by pipejacking. This large variety means the tunnelling world and the skills it needs are constantly varied and challenging. Video credit: @aryan_rajput361 tunnel.engineering #tunnelengineering #artoftunnelling #tunn

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This video highlights the risks of tunnelling in poor ground conditions. This underscores the critical need for thorough ground investigations prior to construction stage and probing ahead of tunnel during the construction. The construction method should be adopted based on the geological conditions and risk and proactive ground stabilisation measures should be used where required. Tunnelling is essential for development, but its associated risks must be thoroughly understood, and mitigation mea