
When schedule and geological conditions require an alternative to conventional shaft sinking, industry professionals in mining and civil construction trust SDI.
- Vertical, or nearly vertical, openings used for ventilation,man ways, and ore and waste transportation for operating mines
- Shaft development for civil construction projects
- Vertical deviations of no more than 1%
- Surface and underground setup provided
- Reduced disturbance of surrounding rock in unstable or frozen ground conditions, raise boring dramatically lowers the cost and expedites completion of the raise
- Minimal environmental disturbance
- Limited interruptions to traffic or services
SDI provides a wide range of shaft development options, please call for current diameter and depth specs









