Paper Title:
Analysis of Creep Characteristics of Shallow Mined-Out Areas Roof under Low Stress Conditions
  Abstract

Under low stress conditions, when the load exerting on the mined-out areas roof is less than the rock long-term strength, the rock roof will generate some creep deformation. In order to prevent the roof of the mined-out areas suddenly collapse, and to ensure the operator and construction equipment above the mined-out areas safety, it is an important security technical problem to reveal the creep characteristics of the shallow mined-out areas roof. Taking the mined-out areas of Antaibao Surface Mine as background, considering the rheological properties of rock roof, and assuming the roof was a rectangular thick plate, the creep characteristics of mined-out areas roof were analysed by applying the thick plate theory and Kelvin creep model. The regression equation of the roof deflection increment over time was given, and the creep characteristics of the shallow mined-out areas roof were revealed also.

  Info
Periodical
Chapter
Chapter 4: Structural Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
832-836
DOI
10.4028/www.scientific.net/AMM.105-107.832
Citation
S. R. Wang, H. H. Jia, "Analysis of Creep Characteristics of Shallow Mined-Out Areas Roof under Low Stress Conditions", Applied Mechanics and Materials, Vols. 105-107, pp. 832-836, 2012
Online since
September 2011
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Price
$32.00
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