AT - Pipe Umbrella Support System

Characteristics and Applications

The AT - Pipe Umbrella support system is used in heterogeneous, soft, or subsidence-sensitive ground. Fields of application are tunneling through fault zones, unstable ground conditions at the working area, or shallow tunnels in urban areas.

• Support of the tunnel wall in the region of the face
• Distribution of loads in the longitudinal direction
• Ground improvement ahead of the tunnel face by grouting
• Reduction of subsidence due to ground improvement and load distribution
• Drainage and ground support also by non-injected casing tubes

Equipment

• DSI offers comprehensive equipment such as rock drilling equipment, rock bolt equipment as well as testing equipment for quality assurance
• As an additional service, DSI offers professional support during installation worldwide