What are the gun avoidance devices in the tunnel?

The tunnel gun avoidance device refers to the device used to protect the tunnel from ammunition and explosion, which is widely used in the construction of tunnel roads, railways, subways and so on. Tunnel gun evasion devices can be divided into the following categories:

1. Pressure wave isolation device: including gun plate and shutter door. The gun plate is usually composed of multiple layers of steel plates, with a certain distance between each layer to isolate the pressure wave generated by the explosion. The shutter door is a rollable protective door made of flexible materials, which can prevent pressure waves from entering the tunnel and protect the tunnel structure.

2. Shielding devices: including embedded walls of tunnels, such as steel ballast concrete and reinforced concrete. These walls can prevent ammunition fragments, explosion shock waves and other hazards from entering the tunnel, thus protecting the safety of the tunnel structure.

3. Space isolation device: the tunnel is divided into several closed spaces by using partitions inside the tunnel and room partitions. On this basis, different protective measures can be set according to the different needs of each space to achieve different isolation effects.

The above are common tunnel gun avoidance devices, and different devices are suitable for different types of tunnels and different explosion threats and isolation requirements. In the design and construction of the tunnel, we should choose an appropriate gun avoidance system according to the actual needs to ensure that the tunnel can withstand different degrees of explosion impact and pressure waves and ensure the safety and stability of the tunnel.