TPMD has experience constructing shafts up to 30m in diameter and to depths of 35m, in locations ranging from residential streets to operational sites.

We have the ability, experience and knowledge to sink shafts in various challenging ground conditions, whether it’s hydraulically jacking a segmental shaft vertically downwards in cohesive ground, while balancing the ground pressure, or underpinning in rock. 

We operate a huge range of in-house equipment suitable for shaft sinking, including specialist jacks, control panels, grouting systems, cranes, shaft access and protection equipment, and have constructed shafts for pumping stations, ventilation, access lifts, safety exits or simple underground storage facilities.

Our service can include for design of collars and bases as well as calculations demonstrating anti-floatation and stability.