What is closed timbering?

Closed timbering is a mining support system that uses timber beams and boards to create a sealed, structural framework within underground mines. This method helps to stabilize mine tunnels and prevent cave-ins, while also controlling air circulation and reducing moisture buildup. By enclosing the mined area, closed timbering enhances safety for miners and improves working conditions. It is particularly effective in softer ground conditions where traditional support methods may be insufficient.