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Wyoming Grassland May Become World Coal Mining Capital

Serial Information: Civil Engineering—ASCE, 1977, Vol. 47, Issue 9, Pg. 50-56


Document Type: Feature article

Abstract:

In the next 10 years United State coal output may double, and forecasts suggest as much as one-third of the increase may come from Campbell County, Wyo. Among topics discussed in this new backgrounder on construction there: A new rail line was built to take coal from the big new mines. It goes through troublesome soils (high liquid limit); twice the soils settled so much, there were minor derailments. Solutions: put impermeable membrane under ballast; or replace the top 3 ft of troublesome soil. Another means proposed for shipping the coal is a slurry pipeline; water-supply, economic and slurry-water-treatment considerations are discussed. Communities in the mine area are few and small; as a result, the big mine and powerplant jobs could adversely impact the communities. The impressive steps being taken to avoid such problems are described, as is a landmark case�� near the Bridger powerplant built elsewhere in Wyoming three years ago�� in which failure to provide adequate housing, schools and sanitation led to big problems and adverse publicity.

Subject Headings: Coal mining | Soil settlement | Power plants | Mines and mining | Coal | Water supply | Slurry pipelines | Wyoming | United States

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