rock bolt
noun Mining, Civil Engineering.
a steel or fiberglass bolt inserted and anchored in a hole drilled in rock to prevent caving of the roof of a tunnel or subterranean chamber.
Content related to rock bolt
Why Is It Called “Rock n’ Roll”?Is “Rocket ‘88” by Jackie Brenston and his Delta Cats the very first rock and roll record? The question has inspired debate among musicologists for years. Another equally contentious question: Where does the term rock and roll come from? Rock is derived from the Old English roccain, related to the Old Nordic rykkja meaning, “to pull, tear, move.” The earliest recorded use of the term in …
Words nearby rock bolt
rock and rye, rock barnacle, rock bass, rock beauty, rock blenny, rock bolt, rock boot, rock borer, rock bottom, rock brake, rock cake
Origin of rock bolt
First recorded in 1955–60
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019