Tunnel Boring Machines (TBMs) are typically assembled in the drive shaft, where the machine is lowered and prepared for tunnelling operations. Once in position, the rotating cutter head at the front of the TBM excavates the ground, while the excavated material is transported away from the face through conveyor belts, screw conveyors, or slurry pipelines depending on the type of TBM used. The machine advances progressively as tunnel lining segments are installed behind it, ensuring stability and

A jumbo drill is vital in rock tunnelling for drilling blast holes and installing rock bolts, as well as creating pressure relief and drainage holes. Its multiple, adjustable arms can drill in nearly any direction, accommodating various rock formations and tunnelling needs. The machine's ability to use different drill bits enhances its adaptability, making it efficient for diverse geological conditions and drilling patterns, thereby improving both speed and safety in tunnel construction. You can

🚀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 several methods for tunnel construction, each suited to specific ground conditions and project requirements, making the selection of the most suitable method essential. Ground investigation is a critical stage, as it provides the information needed to choose the best construction method based on the site's conditions. You can learn all tunnel construction methods in our Online Tunnel Engineering course. Click the link below to find out more 👇 https://tunnel.engineering/tunnelling-trai

Construction projects are key to sustainable development, with tunnelling playing a vital role in creating efficient infrastructure while minimising environmental impact. To meet sustainability targets, these projects must emphasise resource efficiency, reduce waste, and use eco-friendly materials. Tunnelling, in particular, allows for urban expansion with less disruption, supporting long-term environmental and social benefits. By focusing on these principles, construction projects can contribut

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