Planning

Mine planning is often undertaken with the following time frames in mind; short, medium or long term. Life-of-Mine planning is also a term used to describe the full life of asset planning process. Effective rehabilitation and closure planning will be integrated with these planning cycles so that mine planning processes not only take account of, but ensure the mine design, will incorporate rehabilitation and closure objectives and commitments.

Planning is a key stage of the continual improvement cycle;

1 plan.png

Similarly rehabilitation and closure planning work programs should be integrated with the mine plan. Budgets, work programs, human resources, stakeholder engagement processes, works, design, monitoring and so on need to be aligned to the design and planning times frames of the company. The gathering of new knowledge needs to be undertaken well in advance of the application of that knowledge. Not all knowledge needed for successful rehabilitation and closure is acquired during environmental impact assessment processes for approval of a mine. Systematic planning is needed to ensure it is gathered and applied progressively during the mine's life. Good planning is integral to the continual improvement cycle.

Examples of key rehabilitation planning activities from the recently published Leading Practice Sustainable Development Program (LPSD) for the Mining Industry are included below.

Mine Rehabilitation Handbook LPSDP Australian Government

From Chapter 4 Rehabilitation Planning

Key messages

  • Assess the rehabilitation and environmental baseline as early as possible in project development. 
  • Characterise topsoils and overburdens from the exploration phase and continue through the pre-feasibility and feasibility stages as a basis for mine planning. 
  • Perform a comprehensive soil survey before or at the start of operations. 
  • Design the final site landforms as early in the project as possible to minimise costs.

Examples of key closure planning activities from the recently published Leading Practice Sustainable Development Program (LPSD) for the Mining Industry are included below.

Mine Closure Handbook LPSDP Australian government

From Chapter 4 Closure Planning

Key messages

  • Having the right information to make the best technical and social decisions in closure planning requires the collection, assessment and management of environmental, social and economic data early during planning. 
  • An understanding of the likely wastes that will be generated, the materials likely to be exposed and the constraints that these factors will place on the mining operation is vital to closure planning. 
  • The management of water through all phases of the mining cycle is as critical to closure as the management of mine waste. 
  • Characterisation of mine waste materials should commence as early as the exploration phase and continue through the pre-feasibility, feasibility and operational phases as a basis for mine closure planning. 
  • Final placement of mine waste in constructed landforms that are both physically and chemically stable over the long term should be done as early as is practical, and progressive rehabilitation should take place whenever it is viable. 
  • Mine tailings rehabilitation and closure require a unique focus. 
  • In planning for a tailings storage facility, leading practice operators consider mine closure from the beginning of the project development and consider all aspects of tailings disposal while developing and maintaining a TSF decommissioning plan. 
  • The preparation of a radiation management plan that augments the closure plan is required for the closure. It should include a program of ongoing monitoring and surveillance to be put in place once closure has been satisfactorily completed. 
  • It is essential that extensive investigations be carried out during the feasibility, planning and design phases to identify and quantify key surface water and groundwater management issues.

A sample of articles in the MRC-wiki relevant to PLANNING, are included below;

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Created by Vanessa Glenn on 2016/05/10 15:30
    
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