Assertion: screw pile | /r/Synonym | helical piers
Facets:
Source sentences:
text: Screw piles, also called helical piers and screw foundations, have been used as foundations since the mid 19th century in screw-pile lighthouses.[citation needed]
text: Screw piles can be referred to as screw-piles, steel screw-in foundations, screw piers, helical piles, helical anchors, screw anchors, screw foundations and helical piers.