This study was performed to evaluate the economic feasibility of the Ktoswall longwall mining system. The Kloswall system utilizes a deep web mining concept. It was studied both to determine its own economic efficiency and to compare it to the economic efficiency of conventional longwall and continuous mining systems. A broad-range of mine scenarios and equipment configurations was studied for each mining system. The principal economic factor used in the analysis was Rate of Return on Investment. This factor was derived through a yearly discounted cash £low analysis. An estimated value for yearly Cost per Ton has also been provided. Several equipment manufacturers provided their time to make recommendations for equipment suites and ~o s t~, and thoir aooigtancc i 3 much appreciated.

No abstract

This repoFt was prepared. a s an account of 'work sponsored by an agency of the United s t a t e s Government. Neither the United States nor any. agency thereof, nor any of their employees, m a k e s a n y w a n a n t y , exprecccd or Implied, or ~S S U~G any legal 1 l a b i l i. t~ orresponsibility for any third party's use or the results. of such use o f any information, apparatus, or process disclosed i n t h i s report, or represents that i t s u s e b y such third party would, not infringe privately owned rights.

No abstract

This report was prepared a s an account of work sponsored by an agency of the United States Gnv~rnment. Nci ther the United States nor any agency thereof, nor any of their employees. makes any warranty, explessed or implied, or assumes any legal liability or responsibility for any third party's use or the results of such use of any information, apparatus, or process disclosed in this report, or. represents t h a t its uve by such third party would not infringe privately owned rights .