How Do They Build Tunnels Under Water?

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 They Build Tunnels Under Water?

Building tunnels under water is an engineering feat that requires a great deal of skill, knowledge, and resources. In order to construct a tunnel under water, engineers must first determine the ideal placement and depth of the tunnel. Once the location and depth of the tunnel has been determined, engineers will then begin the process of constructing the tunnel.

The first step in the construction process involves preparing the site. This includes conducting geological surveys to determine the type and strength of the soil and bedrock below the surface. This information helps engineers identify the best way to build the tunnel. Once the site has been prepared, engineers will excavate the tunnel. This is done either by hand or with the use of heavy machinery, depending on the size and complexity of the tunnel.

In many cases, the excavation process involves drilling deep into the ground to create a large borehole. This borehole is filled with a concrete slurry, which helps create a waterproof seal and also provides structural support for the tunnel. Once the borehole is filled, the tunnel walls are then constructed. This usually involves pouring concrete into the sides of the borehole to create a solid wall.

Once the walls of the tunnel have been constructed, engineers will then begin the process of water-proofing

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