Today, underwater tunnels are often created with humongous tunnel-boring machines (tbms) — sometimes called moles. These machines cost millions of dollars, but they can create large tunnels in a very short time. A circular plate with disk cutters rotates to cut through rock as the machine inches forward slowly.
How Do Underwater Tunnels Work?
Underwater tunnels are a unique engineering marvel, capable of providing a safe and efficient method of transport between two points submerged below the surface of the water. They have been used for centuries for transportation, military purposes, and even for exploration. However, how exactly do underwater tunnels work?
First, the tunnel’s foundation must be built. This is done by installing a concrete or steel tube that can withstand the pressure of the water and the weight of the vehicle. Once the tube is in place, a waterproof membrane is applied over the top, ensuring that water cannot seep into the tunnel. The tube is then filled with air, which keeps the tunnel pressurized and prevents the water from entering the tube.
Next, the tunnel must be built and maintained. This means that the sides of the tunnel must be reinforced with steel or concrete. To keep the tunnel safe and operational, pumps are used to keep the water level inside the tunnel at a constant level. Additionally, the tunnel must be regularly inspected for structural integrity and any possible damage.
Once the tunnel is completed, it is ready to be used. Underwater tunnels are often used for transportation purposes, such as ferrying vehicles, pedestrians, and freight from one side of the