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263 Kb	Accidental Releases of Slurry and Water from Coal Impoundments Contains a discussion on several cases involving the accidental release of slurry and water from coal impoundments.

1.6 Mb	MSHA Coal Mine Impoundment Inspection Handbook This handbook sets forth procedures for the inspection of coal mine impoundments and procedures for review of impoundment plans at sites inspected by MSHA.

133 Kb	Coal Impoundment Construction using the Upstream Method Fine coal refuse is transported to an impoundment in slurry form and discharged along the upstream toe of an existing embankment. The deposited fine refuse eventually forms a beach near the existing embankment and above the pool elevation. In upstream construction, this beach is used as the foundation for subsequent embankment stages.

18 Kb	Impoundment Study Guide Bullet list containing definitions and statements of fact for impoundment training.

157 Kb	Tailings Impoundment Failures: Are Geotechnical Engineers Listening? Mine tailings impoundment failures are occurring at relatively high rates. Worldwide, the mining industry has experienced several impoundment failures per year over the past 30 years.

	Impoundments PowerPoint Presentations Browse our collection of Impoundments PowerPoint Presentations.



93 Kb	Sample Monthly Impoundment Inspection Form Self explanatory.

97 Kb	Sample Weekly Impoundment Inspection Form Self explanatory.

92 Kb	Design and Construction of Water Impounding Plugs This guide is about the design and construction of watertight (hydrostatic) plugs in working mines. It sets out good engineering practice in relation to the design and construction of such plugs to guarantee their long-term security and in so doing avoid risks to workers from the rapid flooding that would follow a catastrophic failure of a plug or the strata around it.

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