Methods of Erecting Supports in Mine Shafts,

Abstract

A method of erecting permanent supports in mine shafts which are sunk with the pre-freezing of the rock and where a concrete casing is sunk parallel with the installation of a tubbing column. The proposed method differs in that assembly of the tubbing column, rigidly fixed between two cast-iron bearing rings, is carried out independent of the construction of a concrete casing with a space left which is filled with sand or gravel. This provides for an increase in the watertightness of the supports. (Translations, USSR, Russian language).

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 11, 1985
Accession Number
ADA157697

Entities

People

  • A. Z. Litvin
  • N. M. Polyakov

Organizations

  • National Air and Space Intelligence Center

Tags

DTIC Thesaurus Topics

  • Assembly
  • Concrete
  • Construction
  • Determinants (Mathematics)
  • Equations
  • Foreign Technology
  • Freezing
  • Graphics
  • Inventions
  • Language
  • Russian Language
  • Standards
  • Stresses
  • Thermal Stresses
  • Translations
  • Watertightness

Readers

  • Materials Science
  • Pavement Materials Engineering.
  • Structural Dynamics.

Technology Areas

  • Space