Paper Title:
Numerical Analysis on Tunnel Support Nearly Mined Area and Stability Evaluation
  Abstract

Since deformations of tunnel nearly mined area are larger, the reasonable support is very important. According to a side working face tunnel nearly mined area in one Mine, FLAC 2D was applied to numerical analyze on two type bolt net supported tunnel of “short bolt and long anchor cable” and “full anchor cable”. The results showed as follows: (1) plastic region of surrounding rock relatively large, which supported by short bolt and long anchor cable. Displacement reaches 27cm, the effect of this type supporting not significant; (2) The supporting of full anchor cable can effectively control deformation of tunnel, displacement less than 5cm, plastic region of surrounding rock also less than 2.3m. So, the supporting of full anchor cable can meet operating requirements.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
3749-3753
DOI
10.4028/www.scientific.net/AMR.255-260.3749
Citation
W. J. Yu, "Numerical Analysis on Tunnel Support Nearly Mined Area and Stability Evaluation", Advanced Materials Research, Vols. 255-260, pp. 3749-3753, 2011
Online since
May 2011
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Price
$32.00
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