Welcome to CDC stacks |
Stacks Logo
Advanced Search
Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.
Clear All Simple Search
Advanced Search
Cost comparison of gob hole and cross-measure borehole systems to control methane in gobs
Filetype[PDF-1.47 MB]

  • Description:
    "The capital investment and operating costs of two methane-control systems used during longwall mining operations are compared in this Bureau of Mines report. Costs are given for a surface gob hole drainage system and an underground cross-measure borehole drainage system to control methane gas in gobs in four coal mining areas- central Pennsylvania, northern West Virginia, southern Virginia, and northern Alabama. Present-worth analysis is used to determine the more cost-effective alternative in each location. The alternatives have equal lives and provide the same service based on a minimum rate of return of 15 pct. In central Pennsylvania and northern west Virginia, the gob hole system is more cost effective than the cross- measure system, by 10 and 18 pct, respectively. In southern Virginia and northern Alabama; the cross measure system is more cost effective, by 29 and 38 pct, respectively. Costs for other locations must be developed on a case-by-case basis." - NIOSHTIC-2 NIOSHTIC no. 10005917
  • Document Type:
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
No Related Documents.
You May Also Like: