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MET126 > Tailings Storage Facility > Flashcards

Tailings Storage Facility Flashcards

1
Q

What are the three TSF construction methods?

A
  1. upstream method
  2. downstream method
  3. centerline method
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2
Q

Mill tailings requirements:

At least 60% sand in whole tailings. Low pulp density for grain-size segregation.

A

Upstream

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3
Q

Mill tailings requirements:

Suitable for any type of tailings.

A

Downstream

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4
Q

Mill tailings requirements:

Sands or low-plasticity slimes.

A

Centerline

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5
Q

Discharge requirements:

Peripheral discharge, well-controlled beach necessary

A

Upstream

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6
Q

Discharge requirements:

Varies according to design detail

A

Downstream

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7
Q

Discharge requirements:

Peripheral discharge of at least nominal beach necessary

A

Centerline

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8
Q

Water- Storage Suitability:

Not suitable for significant water storage

A

Upstream

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9
Q

Water- Storage Suitability:

Good

A

Downstream

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10
Q

Water- Storage Suitability:

Not recommended for permanent storage. Temporary flood storage can be designed.

A

Centerline

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11
Q

Seismic Resistance:

Poor in high seismic areas

A

Upstream

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12
Q

Seismic Resistance:

Good

A

Downstream

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13
Q

Seismic Resistance:

Acceptable

A

Centerline

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14
Q

Raising Rite Restrictions:

Less than 15-30 ft/yr most desirable. Over 50 ft/yr can be hazardous.

A

Upstream

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15
Q

Raising Rite Restrictions:

None

A

Downstream

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16
Q

Raising Rite Restrictions:

Height restrictions for individuals raises may apply.

A

Centerline

17
Q

Embankment Fill Requirements:

Native soil, sand tailings, waste rock

A

Upstream

18
Q

Embankment Fill Requirements:

Sand tailings, waste rock, native soils

A

Downstream

19
Q

Embankment Fill Requirements:

Sand tailings, waste rock, native soil

A

Centerline

20
Q

Relative Embankment Cost:

Low

A

Upstream

21
Q

Relative Embankment Cost:

High

A

Downstream

22
Q

Relative Embankment Cost:

Moderate

A

Centerline

23
Q

Use of Low Permeability Cores:

Not possible

A

Upstream

24
Q

Use of Low Permeability Cores:

Possible (inclined cone)

A

Downstream

25
Q

Use of Low Permeability Cores:

Possible (Central cone)

A

Centerline

MET126 (5 decks)

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