PHMP's Flashcards
Ground and Strata
WHS (MPS) Regs Schedule 1, Part 1
The following 21 parts must be considered in developing controls:
a. The local geological structure,
b. The local hydrogeological environment, including surface and ground water
c. The means by which water may enter the mine, and the procedures for removing water from the mine and the effect that those procedures have on a rock stability over time,
d. The geotechnical characteristics of the rocks and soil, including the effects of time, oxidisation and water on rock support and stability,
e. The timing of installation of ground and strata support for the mine, taking into account the geotechnical conditions and behaviour of the rocks and soil,
f. The collection, analysis and interpretation of relevant geotechnical data, including the monitoring of openings and excavations,
g. Any natural or induced seismic activity,
h. The equipment and procedures used to record, interpret and analyse data from the monitoring of seismic activity,
i. The location and loadings from existing or proposed mine infrastructure such as waste dumps, tailings storage, haul roads and mine facilities,
j. Any previously excavated or abandoned workings,
k. 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 or airblast,
l. The proposed blasting activities (including the design, control and monitoring of each blast),
m. The design, layout, operation, construction and maintenance of any dump, stockpile or emplacement area at the mine, including any opencut dumps or stockpiles,
n. The filling requirements for minded areas and the material to be used as fill,
o. The stability of any slopes,
p. The size and geometry of the mine’s openings
q. The use of appropriate equipment and procedures for scaling,
r. The design, installation and quality of rock support reinforcement,
s. The need to monitor areas at or around the mine where control measures are in place for the principal mining hazard of ground or strata failure,
t. For highwall mining, pillar and highwall support, the interaction of persons and plant,
u. The risk of rock, coal or related pressure bursts
Fire and Explosion
8 Parts
Must be concidered when developing control measures:
* Arrangements for the management and control of transport and storage of flammable liquids
* Firefighting equipment available
* Potential of propogation of fire/explosion at other areas of the mine
* Procedures for hot work
* Sources of combustible, explosive and flammable substances/materials
* Sources of flammable material with a flashpoint of less than 61deg C
* Sources of ignition, fire or explosion (electicity, static electricity, plant, spon com, lightning, light metal alloys, hot work)
* Prevention of fires including, location and type of systems for the early detection and suppression of fires
Air Quality or Dust and Other Airborne Contaminants
4 Parts
* Dust types, biological, chemical, natural and introduced incl asbestos
* Length of exposure, extended shifts, recovery periods
* Levels of oxygen, dust and other contaminants
* Temperature and Humidity of air
Mine operator must:
* Manage risks extreme temperatures or moisture content of air
* Minimise exposure to dust and diesel matter over an 8hr time-weighted average
Respirable Silica – 0.05mg/m3
Respirable Dust – 1.5mg/m3
Inhalable Dust – 10mg/m3
Deisel Particulate – 0.1mg/m3
* Ensure air monitoring devices are suitable to how air is being monitored and substance monitored (including positioning)
* Have signage indicating meanings of warnings and what response for any air monitoring device
Roads or Other Vehicle Operating Areas
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
Subsidence
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
Spontaneous Combustion PHMP
5 Parts
* Current sate of adjacent workings
* Design of mine
* History of spon com
* Impact of gas generated on environmental conditions
* Scientific testing
1. heat hazard
2. gases produced
3. ultra fines
4. subsidence
Inundation and Inrush
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
* Worst possible consequences for each source
What is a Principal Hazard?
WHS (MPS) Regs Section 4 - Meaning of Principal Hazard
* An activity, process, procedure, plant, structure, substance or situation relating to the carrying out of mining operations that have the reasonable potential to result in multiple deaths in a single incident or series of recurring incidents.
WHS (MPS) Regs Section 27 - Identification of Principal Hazards and Conduct of Risk Assessments
WHS (MPS) Regs Section 27 - Identification of Principal Hazards and Conduct of Risk Assessments
* 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
WHS (MPS) Regs Section 28 - Preparation of PHMP’s
WHS (MPS) Regs Section 28 - 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 Information, training & instruction
* 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
WHS (MPS) Regs Section 29 - Review of PHMPs
WHS (MPS) Regs Section 29 - Review of PHMPs
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 Section 15.
* A record must be kept of this revision including the relating RA
