AMS has experience excavating tunnels, shafts, foundations, and clearances with explosives. We can provide the extensive planning required to ensure the safety of personnel and protection of structures and equipment in the area. We have used low-velocity, low vibration blasting techniques in especially sensitive areas. We can provide consulting and design services to support drill and blast operations.


AMS crews are experienced rock removal experts. We have provided rock removal services for tunnels, shafts, foundations, and clearances. AMS excavation services include drilling and splitting, percussion hammering, and road header grinding.


AMS has provided rock bolts, rock anchors, rock dowels, cable bolts, geosynthetic mesh, shotcrete, liner plates, steel sets, cast-in-place concrete, and precast concrete segments to ensure the safety of personnel in an excavation. We can also provide the consulting and design services required for ground support.


To ensure a safe and cost-effective tunnel project, AMS has used NATM excavation techniques and monitoring programs. Our tunneling experience and capabilities include tunnels from 5 to 50 feet in diameter. We can open and install the ground support and linings, as well as provide the specialized consulting and design services required.


AMS has provided rock removal from elevated locations for safety or access requirements. We have executed work from a crane-supported platform and from climbing ropes. We can provide drilling and blasting, ground support, or mesh installation to mitigate a rock-fall hazard.