Subsidence over the end of a longwall panel
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.

Search our Collections & Repository

For very narrow results

When looking for a specific result

Best used for discovery & interchangable words

Recommended to be used in conjunction with other fields

Dates

to

Document Data
Library
People
Clear All
Clear All

For additional assistance using the Custom Query please check out our Help Page

Filetype[PDF-701.70 KB]


English
Details You May Also Like

Details:

  • Personal Author:
  • Corporate Authors:
    United States. Bureau of Mines.
  • Description:
    "Subsidence was monitored by the U.S. Bureau of Mines over the ends of longwall panels operating in the Pittsburgh, Kittanning, and No. 2 Gas Coalbeds of the Northern Appalachian Coal Basin. The final subsidence over the finishing ends of three panels in the Pittsburgh coalbed is compared with the subsidence measured over the rib at these panels. The characteristics of subsidence are differnt. At mine a, data over the start of a longwall panel show similar characteristics to the subsidence measured over the rib. Subsidence over the finishing ends of panels in the Kittanning and No. 2 Gas Coalbeds are also different from the subsidence over the rib. The use of a subsidence prediction model based on data gathered over the rib of a panel will not yield accurate results if it is applied to the finishing end of a longwall panel. Acceptable results may be obtained along the centerline over the starting end of a panel." - NIOSHTIC-2

    NIOSHTIC no. 10008485

  • Content Notes:
    Mine subsidences -- Appalachian Region. ; Longwall mining -- Environmental aspects.
  • Subjects:
  • Series:
    Report of investigations (United States. Bureau of Mines) ; 9338
  • Document Type:
    Report
  • Place as Subject:
    Appalachian Region
  • Collection(s):
  • Main Document Checksum:
  • Download URL:
  • File Type:

Supporting Files

  • No Additional Files
More +

You May Also Like

Checkout today's featured content at stacks.cdc.gov