PHMP's

Question 1

Ground and Strata

Answer 1

14 Parts
Characteristics of the rocks and soils
Design of dumps, stockpiles and emplacement areas
Data, how its collected and interpreted
Existing roads, stockpiles, dumps and infrastructure
Filling, deign and types of material
Geotechnical structures
Monitoring of existing controls
Openings, size and geometry
Proposed or existing mining and blasting
Previously excavated or abandoned workings
Scaling, appropriate equipment and procedures
Stability of dumps and stockpiles
Seismic activity, both natural and introduced
Water, how it enters the mine and how its removed

Question 2

Fire and Explosion

Answer 2

8 Parts
Arrangements for the transport and storage of flammable liquids
Firefighting equipment available
Potential sources of Propogation
Procedures for hot work
Sources of combustible, explosive and flammable substances
Sources of flammable material with a flashpoint of less than 61deg C
Sources of ignition
Systems for the early detection, suppression and prevention of fires

Question 3

Air Quality or Dust and Other Airborne Contaminants

Answer 3

4 Parts
Dust types, biological, chemical, natural and introduced incl asbestos
Exposure levels, extended shifts, recovery periods, TWL, STEL
Levels of oxygen, dust and other contaminants
Temperature and Humidity of air

Question 4

Roads or Other Vehicle Operating Areas

Answer 4

8 Parts
Characteristics of mobile plant
Design of mine, steep drops, banks adjacent to roads
Interaction with pedestrians
Interaction with public traffic
Interaction with fixed structures
Interaction with other mobile plant incl HV-HV, HV-LV
Road conditions, enviro conditions during operating periods
Road design, cambers, curves, radius of corners, ramp grades and intersection standards

Question 5

Subsidence

Answer 5

6 Parts
Characteristics of surface and subsurface features
Geological, hydrological, hydrogeological, geotechnical, topographic and climatic conditions
Geometry and stability of significant void, standing pillars and old pillar workings
Previously excavated or abandoned workings
Predicted or actual distribution, timing, duration, magnitude and nature of subsidence
Rate, method, layout, schedule and sequence of mining

Question 6

Spontaneous Combustion PHMP

Answer 6

5 Parts
Current sate of adjacent workings
Design of mine
History of spon com
Impact of gas generated
Scientific testing

Question 7

Inundation and Inrush

Answer 7

6 Parts
Locations of old dams, tailings dams, bodies of water, old workings, emplacement areas and the strength of ground between
Sources of inundation, extreme weather, overflow or failure of dams and levees
Sources of inrush, current or abandoned workings, surface water bodies, aquifers, boreholes, geological weaknesses
Potential for accumulation of gas, water or other substances that could flow into workings
Survey Plans for the Mine
Worts possible consequences for each source

Question 8

What is a Principal Hazard?

Answer 8

WHS MPS Regulations Cl5
any activity, process, procedure, plant, structure, substance or situation relating to the carrying out out of mining operations that have the reasonable potential to result in multiple deaths in a single incident or a series of recurring incidents

Question 9

WHS MPS Cl 23

Answer 9

Identification of Principal Hazards and Conduct of Risk Assessments
The operator must identify all principal hazards
Must carry out a risk assessment for all identified PH’s
Must use a suitable technique to investigate and analyse
Must consider the individual and cumulative risks

Question 10

WHS MPS Cl 24

Answer 10

Preparation of PHMP’s
The operator must -
Prepare a PHMP for each identified hazard
Must be readily understandable
Must describe the nature and how it relates to other PH’s
Must describe the analysis methods used
Must include latest RA
Must describe all control measures
Describe the arrangements for providing I.T.I
Refer to design, engineering and tech standards
Set out the reasons for adopting/rejecting controls
Must consider matters in Sch1 and any other relevant matters
Must ensure no mining operations take place before plan is in place

Question 11

WHS MPS Cl 25

Answer 11

Review of PHMP
The operator must -
ensure a PHMP is reviewed and revised if a control measure is revised under WHS Regs Cl 38 or WHS MPS Regs Cl 10