Sources of Greatest Acidity in a Coal-Mined Watershed
Computer-Assisted Coal Mining ? An Overview
The U.S. Bureau of Mines was created to conduct research to improve the health, safety, and efficiency of the coal and metal mining industries. In 1986, the Bureau embarked on a new, major...
A Real-Time Control Network for Robotic Mining
The application of computers and computer networks to coal mining machines is one approach the U.S. Bureau of mines is pursuing to enhance safety for the coal miner while at the same time...
Behavior of Foundations Subjected to Large Ground Movements
The behavior of twelve linear test foundations above an advancing longwall coal mine panel was observed. Three phases of deformation were observed in the centerline foundations: tension,...
U.S. Firm to Engineer Coal-Plant Retrofit in `Black Triangle'
Coal Log Pipeline Technology: State of Development
Settlement Analysis of Landfill Liners over Deep Mined Areas
Tensile strains due to differential settlement from past mining activities were evaluated for a landfill liner. The landfill cell encompasses 20 acres and is located on a subsurface profile...
Hydration Mineralogy of Cementitious Coal Combustion By-Products
Cleanup of a Coal Tar Deposit Using a Vacuum Clam
Diesel May Clean Coal-Powered Plants
Sedimentation Pond Removal in Eastern Ohio Coal Mining
Due to the large number of sedimentation ponds used in surface coal mining, efficient, economical, and environmentally acceptable methods for sedimentation pond removal and reclamation...
Present and Future Use of Coal Ash in Construction and Related Applications
The American Coal Ash Association, Inc. (ACAA) is an organization of producers and marketers of coal combustion by-products. An annual survey of coal-burning electric utilities is conducted...
Speedy Backfilling for Old Mines
In November 1992, the U.S. Bureau of Mines, in cooperation with the Office of Surface Mining (OSM), used two recently-developed pneumatic backfilling devices to completely fill an abandoned...
Fly Ash for use in the Stabilization of Industrials Wastes
Fly ash and other coal combustion by-products are used in the stabilization of industrial wastes. This paper describes the various types of fly ashes, the mechanisms of strength development,...
Venezuela Turns to Port
Despite Venezuela's recent political troubles, geography and economics argue for a big increase in the country's port capacity. Oil has traditionally been the...
Institutional Constraints to the Use of Coal Fly Ash in Civil Engineering Construction
Coal Mine Waste Formation and Changes of Microstructure Under Artificial Salting
Cement-Stabilized Soil for Coal Retaining Berms
Interface Friction of Polypropylene Straps
Coal-Gas Conundrum
Manufactured gas from coal brought streetlights and clean cooking fuel to the late Victorian era, but a hundred years later their legacy isn't quite so beneficial. Investigators...
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