What are the Mine Reclamation Methods ?


this is a mining engineering assignment read the reference, watch videos and links to answer the questions

refrences: videos to watch before assigment

Part 1: 10 points

Refer to the table shown on the following page:

Mining features, their impacts and reclamation “attached below”

Identify up to 10 mine features that need to be reclaimed (a few features are listed for reference). Once the features have been identified begin to fill out the remaining parts of the table. The following questions will be helpful in approaching the table:

  • What about these features requires reclamation in order to meet a reclamation goal (i.e. stability)?
  • What about these features make them difficult to reclaim?
  • How does water impact these structures?

Identify reclamation practices (e.g. regrading) and methods (e.g. equipment used) for the mine features identified in the videos as well as the reference material. Consider the reclamation manuals in the following documents and other online guidance. Ensure that you have at least 10 mine features listed and each feature has at least one reclamation practice and methods.

Practical guide to reclamation in utah.pdf attached below

DOI_BLM Solid Minerals Reclamation Handbook H-3042-1.pdf attached below

Some Possible Reclamation Tools
Slope Reduction – Unconsolidated (grading)
Slope Reduction – Consolidated (blasting/grading)
Safety Berms (above slopes)
Decompaction (ripping)
Roughen Surfaces (ripping/scarification)
Drainage Control Structures (berms, ditches, ponds, etc)
Revegetation Activities
Encapsulation
Covers
Inundation
Dewatering (pumping, wicks)
Diversion – Underground (e.g. French drains)
Evaporation – Mechanical
Evaporation – Semi-Passive (Evapotranspiration (ET) Cells )
Water Treatment (lime neutralization, reverse osmosis, etc)
Structure Demolition & Disposal
Hazardous Waste Disposal

Part 2: 10 points

Study one or more papers on landform design. See the following papers:

Capstone reclamation case study.pdf

Ayres-et-al-Incorp-of-Natural-Features-ICARD06.pdf

What_is_Geomorphic_Reclamation.pdf

Answer the following questions:

    1. Define the terms geomorphic reclamation and landform design. (Provide some examples in the definition. Need to see one paragraph each.)
    2. Identify primary landform design principles and considerations. How are these different than conventional mine reclamation? (explain in a few sentences)
    3. Why isn’t landform design a standard practice in the industry? (explain in two or three sentences)
    4. When does reclamation planning for landform design begin?
    5. Consider either your senior mine design project or a mine with which you are familiar. List three or four specific ways that you could incorporate landform design principles into its mining and reclamation plan.

Part 3: 10 points

Study and summarize, with the questions below, the information on tailings from http://www.tailings.info/index.htm (Links to an external site.)

(Links to an external site.)The website has general information on tailings storage and disposal methods. Additional information can be found in the Australian tailings management guide:

lpsdp-tailings-management-handbook-english.pdf

    1. What is the difference between tailing storage techniques and disposal methods? (in a few sentences)
    2. Identify four different types of unconventional tailings disposal methods. (write up in a paragraph)
    3. List pro’s and cons’ associated with different unconventional tailings disposal. Why is conventional tailings disposal still the standard practice in the industry? (write up using a paragraph and a comparison table)
    4. What factors are helping to change this? (two or three sentences)

 

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