forepole
1forepole — n. /fawr pohl , fohr /; v. /fawr pohl , fohr /, n., v., forepoled, forepoling. Mining. n. 1. Also called spile, spill. any of a number of boards or timbers driven forward on top of a set to protect miners lengthening a tunnel from falling debris …
2forepole — I. transitive verb also forepale (ˈ) ̷ ̷| ̷ ̷ Etymology: fore + pole or pale (v.) : to advance (an excavation) in quicksand or caving ground by driving poles, slabs, or sheathing into the ground ahead of the excavating or simultaneously with it… …
3spile — spile1 /spuyl/, n., v., spiled, spiling. n. 1. a peg or plug of wood, esp. one used as a spigot. 2. a spout for conducting sap from the sugar maple. 3. a heavy wooden stake or pile. 4. Mining. forepole. v.t. 5. to stop up (a hole) with a spile or …
4spill — spill1 spillable, adj., n. /spil/, v., spilled or spilt, spilling, n. v.t. 1. to cause or allow to run or fall from a container, esp. accidentally or wastefully: to spill a bag of marbles; to spill milk. 2. to shed (blood), as in killing or… …
5tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening …
6spiling — I. ˈspīliŋ, lēŋ noun ( s) Etymology: origin unknown 1. : figures showing the distances from the edge of a template or straightedge to points along a curved part of a ship (as a bow plank or plate) often used in plural 2. : the process of laying… …
7forepale — transitive verb see forepole I …