To use this method, builders dig a trench in the riverbed or ocean floor. They then sink pre-made steel or concrete tubes in the trench. After the tubes are covered with a thick layer of rock, workers connect the sections of tubes and pump out any remaining water.
How to Build a Tunnel Under Water?
Tunneling underwater can be a challenging and complex task, but it is an essential part of many infrastructural projects. Whether it’s for a bridge or a waterway, tunnels are an important part of any engineering design. Here’s a step-by-step guide on how to build a tunnel under water.
First, it’s important to consider the type of tunnel that you need to build. Different types of tunnels are suitable for different projects. For example, a bored tunnel is ideal for waterway projects, while jacked tunnels are better for bridge construction.
Next, you need to assess the soil conditions. This will help you decide the type of foundation and support system that you need to build. Generally, it’s better to use a combination of steel and concrete to ensure the tunnel’s structural integrity.
Once the foundation is complete, you can start digging. This is usually done with a boring machine, which is designed to drill through the soil. If you’re working with a particularly hard or rocky soil, you may need to use explosives to break it apart.
When the tunnel is dug, it needs to be reinforced to keep the structure strong and stable.