Description: |
Ground Control Failures contains a storehouse of color photos investigating 50 case studies in areas such as pillar failures, roof falls, cutters, roof bolting failures, floor heave, multiple-seam mining, flooding, abandoned mine workings, and longwall from coal producing areas in the US, Canada, and Mexico.
The book emphasizes visual analysis of on-site scenes using approximately 1,000 underground color photos, each fully annotated, accompanied by 89 illustratons and 84 text pages. In each case, the year as well as mining and geological conditions are given. This is followed by a description of the history and current ground control problems and recommended solutions and results.
In some cases, results of implementing the recommended remedial measures are covered. In many cases, the events are illustrated in detail, showing the forms and severity of failures that vary in parts of a mine structure and change over time. The book shows how an underground ground control problem should be investigated.
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