Definition

Noun: 1. A vertical or sloping underground passage: A mineshaft is a deep, narrow, excavated hole or tunnel that provides access to an underground mine. It is the primary passage for miners, equipment, and materials to travel between the surface and the mine's working levels, and is also used for ventilation.

Usage Examples

• Noun:
  • The old gold mine was sealed after its main mineshaft collapsed.
  • Miners descended into the earth via a deep, dark mineshaft.
  • A powerful fan at the top of the mineshaft provided fresh air to the workers below.

Advanced Usage

• "to sink a mineshaft": This phrase describes the process of digging or excavating a new vertical passage down to a mineral deposit.
  • The company began to sink a mineshaft after discovering a promising vein of copper.

Variants and Related Words

• Shaft (n): A long, narrow, typically vertical passage. A mineshaft is a specific type of shaft.
  • An elevator shaft runs through the center of the building.
• Adit (n): A nearly horizontal passage from the surface into a mine, in contrast to a vertical or steeply sloping mineshaft.
  • The miners entered the coal seam through a low adit in the hillside.

Synonyms

• Pit: A large, deep hole in the ground, often used for mining.
• Excavation: A hole or cavity made by digging.

Related Phrases

• Headframe (n): The structure built over a mineshaft to support the hoisting machinery.
  • The iconic headframe stood above the mineshaft for decades.
• Shaft collar (n): The reinforced top section of a mineshaft at the surface.
  • Safety rails were installed around the shaft collar.

Noun

1. excavation consisting of a vertical or sloping passageway for finding or mining ore or for ventilating a mine