South Australian Current Regulations South Australian Current RegulationsSchedule 19—Principal mining hazard management plans—additional
matters to be considered
1—Ground or strata instability
The following matters must be considered in developing the control measures to
manage the risks of ground or strata instability:
(a) the
local geological structure;
(b) the
local hydrogeological environment, including surface and ground water;
(c) the
geotechnical characteristics of the rocks and soil, including the effects of
time, oxidation and water on rock support and stability;
(d) any
natural or induced seismic activity;
(e) the
location and loadings from existing or proposed mine infrastructure such as
waste dumps, tailings storage, haul roads and mine facilities;
(f) any
previously excavated or abandoned workings;
(g) the
proposed and existing mining operations, including the nature and number of
excavations, the number and size of permanent or temporary voids or openings,
backfilling of mined areas and stopes, abutments, periodic weighting and
windblast;
(h) the
proposed blasting activities, including airblast.
The following matters must be considered in developing the control measures to
manage the risks of inundation and inrush:
(a) the
potential sources of inundation, including extreme weather, overflow or
failure of levies and dam structures, failure or blocking of flow channels
(either regular, overflow or emergency);
(b) the
potential sources of inrush including current, disused or abandoned mine
workings along the same seam or across strata, surface water bodies, backfill
operations, highly permeable aquifers, bore-holes, faults or other geological
weaknesses;
(c) the
potential for the accumulation of water, gas or other substances or materials
that could liquefy or flow into other workings or locations;
(d) the
magnitude of all potential sources and maximum flow rates;
(e) the
worst possible health and safety consequences of each potential source,
including the accuracy of plans of other workings, variation in rock
properties and geological weaknesses.
3—Mine shafts and winding operations
The following matters must be considered in developing the control measures to
manage the risks associated with mine shafts and winding operations:
(a) the
stability and integrity of the shaft;
(b) the
potential for fires in underground operations, the shaft or winder areas;
(c) the
potential for any unintended or uncontrolled movement of the conveyances
within the shaft;
(d) the
potential for a detached conveyance to fall down the shaft;
(e) the
potential for fall of persons, equipment, materials or support structure into
or within, the shaft;
(f) the
potential for failure of, or damage to, health and safety related equipment
and controls, including the following:
(i)
ropes bearing the weight of the shaft conveyance;
(ii)
controls and limiting devices to prevent overwind,
overrun, overspeed and the exceeding of other selected limits;
(iii)
equipment and controls to detect, prevent or cause the
winder to stop in the event of slack rope, drum slip or tail rope
malfunctions;
(iv)
braking systems including emergency brakes and systems
for preventing free-fall of a conveyance;
(v)
warning systems for any emergency in the shaft;
(vi)
communication systems;
(g) the
potential for injury to persons in a conveyance from material being carried in
the conveyance or falling from another conveyance;
(h) the
need to enable persons to escape from a stalled conveyance;
(i)
the competency of the operator of the winder.
4—Roads and other vehicle operating areas
The following matters must be considered in developing the control measures to
manage the risks associated with roads and other vehicle operating areas:
(a)
mobile plant characteristics, including stopping distances, manoeuvrability,
operating speeds, driver position, driver line of sight and remote control
mobile plant;
(b) the
effect on road conditions of expected environmental conditions during
operating periods (including time of day, weather, temperature and
visibility);
(c) the
impact of road design and characteristics, including grade, camber, surface,
radius of curves and intersections;
(d) the
impact of mine design, including banks and steep drops adjacent to vehicle
operating areas;
(e) the
volume and speed of traffic and the potential for interactions between mobile
plant with different operating characteristics, including heavy and light
vehicles;
(f) the
potential for interactions between mobile plant and pedestrians, including
consideration of park up areas and driver access;
(g) the
potential for interaction between mining mobile plant and public traffic;
(h) the
potential for interaction between mobile plant and fixed structures, including
overhead and underground power lines, tunnel walls and roofs.
5—Air quality, dust and other airborne contaminants
The following matters must be considered in developing the control measures to
manage the risks associated with air quality, airborne dust and other airborne
contaminants:
(a) the
types of dust and other chemical and biological contaminants likely to be in
the air from both natural sources, including naturally occurring asbestos, and
introduced sources;
(b) the
levels of oxygen, dust and other contaminants in the natural or supplied air
of a mine;
(c) the
temperature and humidity of the air;
(d) the
length of exposure, having regard to extended shifts and reduced recovery
periods.
The following matters must be considered in developing the control measures to
manage the risks of fire and explosion:
(a) the
potential sources of flammable, combustible and explosive substances and
materials, both natural and introduced, including gas, dust, fuels, solvents
and timber;
(b) the
potential sources of ignition, fire or explosion, including plant,
electricity, static electricity, spontaneous combustion, lightning, hot work
and other work practices;
(c) the
potential for propagation of fire or explosion to other parts of the mine.
The following matters must be considered in developing the control measures to
manage the risks of gas outbursts:
(a) the
potential for gas release into the working area of a mine from both natural
and introduced sources in a concentration that could lead to fire, explosion
or asphyxiation;
(b) the
potential for accumulation of gases in working areas and abandoned areas of
the mine;
(c) the
nature of the gas that could be released;
(d) the
gas levels in the material being mined;
(e) gas
seam pressures.
The following matters must be considered in developing the control measures to
manage the risks of spontaneous combustion:
(a) the
potential for spontaneous combustion to occur in the material being mined,
including by—
(i)
evaluating the history of the mine in relation to
spontaneous combustion; and
(ii)
evaluating any adjacent or previous mining operations in
the same seam; and
(iii)
the conduct of scientific testing;
(b) mine
ventilation practices;
(c) the
design of the mine;
(d) the
impact of gases generated by spontaneous combustion on mine environmental
conditions.