U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Evaluation of New Methods and Facilities to Test Explosion-Resistant Seals

Public Domain
File Language:
English


Details

  • Journal Article:
    Proceedings of the 29th International Conference of Safety in Mines Research Institutes. Vol. 1.
  • Personal Author:
  • Description:
    The Pittsburgh Research Laboratory (PRL) of the National Institute for Occupational Safety and Health (NIOSH) has conducted full-scale explosion experiments to evaluate the strength characteristics of several seal designs for isolating worked out areas in underground coal mines. The PRL is currently pursuing the development of improved seal evaluation methods and facilities based on pneumatic and hydrostatic testing that would lend themselves to in-situ seal testing in an operating mine. Two chambers were constructed and instrumented within PRL's Lake Lynn Experimental Mine (LLEM) for the evaluation of seals. Two solid-concrete-block seals, 13.5 and 40.3 square meter cross-section and 406 mm thick with a central pilaster, were constructed in both the small and large chambers and tested to failure with a series of methane explosions producing loading pressures ranging from 386 to 688 kPa. A preliminary size-scaling relationship is presented for estimating the ultimate strength of masonry block seals built with rib and floor hitching. Testing seal designs in the chambers shows promise as an alterative evaluation method to that of full-scale explosion testing within the LLEM. [Description provided by NIOSH]
  • Subjects:
  • Keywords:
  • Source:
    Proceedings of the 29th International Conference of Safety in Mines Research Institutes. Katowice, Poland: Central Mining Institute, 2001 Jan; 1:157-166
  • Series:
    Mining Publications
  • Publisher:
    Central Mining Institute
  • Document Type:
    Text
  • Genre:
    Report
  • Place as Subject:
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    PRL - Pittsburgh Research Laboratory
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    15 pdf pages
  • Volume:
    1
  • NIOSHTIC Number:
    nn:20021430
  • Federal Fiscal Year:
    2001
  • Peer Reviewed:
    False
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:b8914cc910b5a56c2f6eab1ff4e6f70cb4ad57f14abcf8fe2c9809ffa868b146e47cf050cbc621534de8b57aabb9ca2a1a34ae5d758f12ca3c24c463d1535851
  • Download URL:
  • File Type:
    Filetype[PDF - 119.96 KB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
CDC STACKS serves as an archival repository of CDC-published products including scientific findings, journal articles, guidelines, recommendations, or other public health information authored or co-authored by CDC or funded partners.

As a repository, CDC STACKS retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP