Mine Roof Control
Mine roof control with polyurethane injection.
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(724) 625-0008
Sub-Technical, Inc.
- Aug 4
- 1 min
Elevator Shaft Repair
This elevator shaft was leaking groundwater in between the floor and the first course of concrete filled block walls. Although this...
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Sub-Technical, Inc.
- Jun 27
- 1 min
Tunnel Boring Machine Brushes and Tunnel Segments
Tunnel Boring Machine and Tunnel gets Polyurethane Grout Injection to control ground conditions.
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Sub-Technical, Inc.
- May 8
- 1 min
Polyurethane Grout Migrates through Rock
Polyurethane grout migrates through rock to control groundwater infiltration.
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Sub-Technical, Inc.
- Apr 20
- 1 min
Monitoring Shaft Decommissioned
This is a monitoring shaft located in a dam to read the water levels of the reservoir. Considered obsolete, the owners wanted it...
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Sub-Technical, Inc.
- Mar 23
- 1 min
Open Pitt Mine Water Inflow
Open Pitt water inflow controlled with polyurethane grout.
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Sub-Technical, Inc.
- Mar 23
- 1 min
High Pressure Water Leak
High pressure water leak grouted with polyurethane grout.
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Sub-Technical, Inc.
- Mar 23
- 1 min
Sheet Pile Water Inflow
Sheet pile injected with polyurethane grout to stop water.
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Sub-Technical, Inc.
- Mar 23
- 1 min
Secant Piles Grouted with Polyurethane
Newly constructed secant piles can still have water infiltration. Polyurethane grouting contractor Sub-Technical, Inc. injected Hyperflex .
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