Highwall definition

Highwall means a vertical or nearly vertical face in solid rock or a slope of consolidated or unconsolidated material that exceeds 3:1.

Highwall means the face of exposed overburden and coal in an open cut of a surface mining activity or for entry to underground mining activities.

Highwall means the unexcavated face of exposed overburden and mineral in a surface mine.

Examples of Highwall in a sentence

• Highwall miner holes shall be sealed with an impervious, non-combustible material, as contemporaneously as practicable with the highwall miner operation, as approved by the Regulatory Authority, if the holes are not discharging water containing acid or toxic-forming material.

• The Highwall Miner equipment is the only remaining property subject to Fifth Third’s lien.

• Highwall means a wall created by mining having a slope steeper than two (2) vertical units to one (1) horizontal unit.

• Highwall remnant" means that portion of a highwall that remains after backfilling and grading of a remining permit area.

• An inspection shall be conducted of all aerial tramways for existing and potential hazards, including structure condition, guarding, accumulations, lighting, electrical installation, and fire protection.2. Auger Openings and Highwall Mining.

More Definitions of Highwall

Highwall means a vertical or nearly vertical face in solid rock or a slope of consolidated or unconsolidated material that is steeper than 3:1.

Highwall means the face of exposed overburden and coal in an open cut of a coal mining operation or for entry to underground mining operations.

Highwall means that side of the pit adjacent to unmined land;

Highwall means the face of exposed overburden or coal in an open cut of a surface mine or entry to an underground mine.

Highwall means the steeply inclined unexcavated face of exposed consolidated materials or exposed consolidated overburden in an open cut of a surface mine.

Highwall means the unexcavated face of exposed overburden and ore in a surface mine.

Highwall means the face of exposed overburden and coal in an open cut of surface coal mining and reclamation activities or for entry to underground mining activities.