Document ID: chunk:federal_register_of_legislation:F2016L00416:reg:4:p20
Version: federal_register_of_legislation:F2016L00416
Segment Type: reg
Provision Reference: reg 4 (pt 20/21)
Character Range: 82365–85269

repose, to prevent earth slippage.

Bench means a horizontal step cut into the face or side or wall of an excavation to provide horizontal bearing and sliding resistance.

Benching means the horizontal stepping of the face, side, or wall of an excavation.

Closed sheeting means a continuous frame with vertical or horizontal sheathing planks placed side by side to form a continuous retaining wall supported by other members of a support system used to hold up the face of an excavation.
Competent person means a person who has acquired through training, qualification or experience the knowledge and skills to carry out the task.
Earthmoving machinery means operator controlled mobile plant used to excavate, load, transport, compact or spread earth, overburden, rubble, spoil, aggregate or similar material, but does not include a tractor or industrial lift truck.
Exclusion zone means an area from which all persons are excluded during excavation work.
Face means an exposed sloping or vertical surface resulting from the excavation of material.
Geotechnical Engineer means an engineer whose qualifications are acceptable for membership of the Institution of Engineers, Australia and who has qualifications and experience in soil stability and mechanics and excavation work.
Hoist means an appliance intended for raising or lowering a load or people, and includes an elevating work platform, a mast climbing work platform, personnel and materials hoist, scaffolding hoist and serial hoist but does not include a lift or building maintenance equipment.
Overburden means the surface soil that must be moved away.
Operator protective device means a roll-over protective structure (ROPS), falling object protective structure (FOPS), operator restraining device and seat belt.
Powered mobile plant means plant that is provided with some form of self-propulsion that is ordinarily under the direct control of an operator.
Safe slope means the steepest slope at which an excavated face is stable against slips and slides, having regard to the qualities of the material in the face, the height of the face, the load above the face and the moisture conditions for the time being existing.
Shaft means a vertical or inclined way or opening from the surface downwards or from any underground working, the dimensions of which (apart from the perimeter) are less than its depth.
Sheet piling means vertical, close-spaced, or interlocking planks of steel, reinforced concrete or other structural material driven to form a continuous wall ahead of the excavation and supported either by tie-backs into solid ground structural members from within the excavation as the work proceeds.
Shoring means the use of timber, steel or other structural material to support an excavation in order to prevent collapse so that construction can proceed.
Soldier means vertical upright steel or timber element used for supporting a