Paper Title:
Measurement and Characteristics Analysis of In Situ Stress in Expanding Area of Tao’er Coal Mine
  Abstract

In order to fully understand and correctly evaluate the stability of overlying strata and surrounding rock, in-situ stress of south main roadway, north main roadway and bypass in shaft station of expanding area, Tao’er coal mine was tested by KX-81-style triaxial stress gauge of hollow inclusion. The test results show that tectonic stress is main in in-situ stress of expanding area, Tao’er coal mine, horizontal principal stress is westeast distribution, 31.13-27.42MPa size, 27.42°-275° direction. Each stress state is not identical, vertical stress is basically slightly less than the weight of the rock covering on unit area. Application of measuring principle of in-situ stress and analysis of field measurement provide a reliable basis for roadway support design and parameters optimization in expanding area of Tao’er coal mine, ensure safety and smooth construction of roadway.

  Info
Periodical
Edited by
Xuejun Zhou
Pages
1732-1735
DOI
10.4028/www.scientific.net/AMM.90-93.1732
Citation
H. J. He, L. H. Sun, S. R. Su, S. G. Wang, B. S. Yang, "Measurement and Characteristics Analysis of In Situ Stress in Expanding Area of Tao’er Coal Mine", Applied Mechanics and Materials, Vols. 90-93, pp. 1732-1735, 2011
Online since
September 2011
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Price
$32.00
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