New fundamental interface sensor concepts were identified and investigated including tabulation of the physical and performance characteristics of two new interface detector concepts: - natural background radiation and magnetic spin resonance. Studies of guidance and control techniques for the longwall miner identified three basic systems for use in automated/remote controlled longwall mining. The following projects were initiated: system study which will more completely define the longwall guidance and control system design concepts; integration of the various control functions (vertical, yaw, and roll); and hardware technical requirements
The U.S. Bureau of Mines is approaching the problems of accidents and efficiency in the mining indus...
Geologic characteristics of coal resources which may impact new extraction technologies are identifi...
A measurement system was developed for the Eickhoff longwall shearer to determine the contour of the...
Cost effective, safe, and technologically sound applications of automation technology to underground...
The longwall guidance and control (G&C) system was evaluated to determine which systems and subsyste...
One approach for detection of the coal interface is measurement of pick cutting loads and shock thro...
The capability of a natural background sensor for measuring the thickness of top coal on a longwall ...
"The U.S. Bureau of Mines developed and tested a teleoperating system to control a new highwall mini...
"The primary focus of the U.S. Bureau of Mines (USBM) is to make mining safer and more healthful for...
The design of a nucleonic, coal interface detector which measures the depth of coal on the roof and ...
Because of the volume of coal produced by strip mining, the proximity of mining operations, and the ...
The cost of mining coal using a room pillar mining method with continuous miner and a longwall minin...
"The U.S. Bureau of Mines seeks to increase safety and efficiency in U.S. coal mines. One approach i...
The block caving mining system is the most economical underground mining system known today, and its...
The mining industry has the highest average annual fatality rate among major U.S. industries. To ad...
The U.S. Bureau of Mines is approaching the problems of accidents and efficiency in the mining indus...
Geologic characteristics of coal resources which may impact new extraction technologies are identifi...
A measurement system was developed for the Eickhoff longwall shearer to determine the contour of the...
Cost effective, safe, and technologically sound applications of automation technology to underground...
The longwall guidance and control (G&C) system was evaluated to determine which systems and subsyste...
One approach for detection of the coal interface is measurement of pick cutting loads and shock thro...
The capability of a natural background sensor for measuring the thickness of top coal on a longwall ...
"The U.S. Bureau of Mines developed and tested a teleoperating system to control a new highwall mini...
"The primary focus of the U.S. Bureau of Mines (USBM) is to make mining safer and more healthful for...
The design of a nucleonic, coal interface detector which measures the depth of coal on the roof and ...
Because of the volume of coal produced by strip mining, the proximity of mining operations, and the ...
The cost of mining coal using a room pillar mining method with continuous miner and a longwall minin...
"The U.S. Bureau of Mines seeks to increase safety and efficiency in U.S. coal mines. One approach i...
The block caving mining system is the most economical underground mining system known today, and its...
The mining industry has the highest average annual fatality rate among major U.S. industries. To ad...
The U.S. Bureau of Mines is approaching the problems of accidents and efficiency in the mining indus...
Geologic characteristics of coal resources which may impact new extraction technologies are identifi...
A measurement system was developed for the Eickhoff longwall shearer to determine the contour of the...