H-beam pile cutter and combination with h-beam pile
H-beam pile point
Handling system for effecting a submerged coupling
Hatch cover
Head gear for pile boring
Heat added to underground cemented fill to obtain both early...
Heave compensated snubbing system and method
Heave-proof arctic piling
Height adjustment ring for manhole cover frame
Height-adjustable, structurally suspended slabs for a...
Helical anchor with hardened coupling sections
Helix guy anchor coupling
High profile geotextile fabrics
High profile geotextile fabrics
High shear strength clay liner, method and apparatus for its...
High strength anchor
Hole cover
Hollow hub helical earth anchor with improved earth...
Hollow screw-in pile
Hydraulic method of soil compaction and apparatus therefore