Subsidence features

Mine featuresSubsidence featuresCulverts and bat gatesWells and sinkholesPipes, tanks, and slabsBlasting and hole pluggingGround sealing

Foam can be used in subsidence features. By sealing the opening, erosion and surface water infiltration are reduced. This can help lower AMD and maintain the inherent stregth of the remaining roof. Click images to enlarge:

Chimney type failure into shallow coal, note joint in rock Pouring foam directly into subsidence crack, no excavation required
Risen foam in subsidence crack Filling intersection cave with foam
Foam under edge of building to stop water and hold backfill Large subsidence failure over anthracite portal
Large opening into a stope Backfilling raise after plugging with foam
"A" Component
"R" Component
Winter 2010
Fall 2010
"EFS from Foam Concepts has been used for mine and subsidence closures in 28 states an[...]" (full)
Foam Concepts LLC
4255 S. Eagleson Rd
Boise, ID 83705

Phone: 800.556.9641
Fax: 877.327.1196