Bore tunneling is a method used to create underground tunnels for various purposes, such as transportation, utilities, or mining. This technique involves using a specialized machine called a tunnel boring machine (TBM) that drills through soil and rock, removing material as it advances. The TBM can create tunnels of different diameters and is often used in urban areas to minimize surface disruption. The process begins with the TBM being lowered into a launch pit, where it starts to bore through the ground. As it progresses, the machine installs tunnel linings to support the structure and prevent collapse. Bore tunneling is efficient and reduces the environmental impact compared to traditional excavation methods.