Paper Title:
Comparative Study on Fracture Behavior of the Reinforced Jointed Rock
  Abstract

In order to understand the anchorage mechanisms the fracture behavior of jointed rock masses reinforced with rockbolts was compared with those of the jointed rock masses without rockbolts. Firstly the unaixal tensile tests were conducted on the specimens with inclined surface cracks, horizontal through cracks and horizontal a quarter through cracks to investigate the crack growth of the jointed rock masses without rockbolts. The experimental results show the fracture of the specimens without rockbolts belonged to tensile fracture in the catastrophic way under uniaxial tensile conditions. However the experimental results of the specimens reinforced with rockbolts show that rockolts can change the initiation of the pre-existing cracks, incur the secondary cracks and there existed stable crack propagation.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
2562-2565
DOI
10.4028/www.scientific.net/AMR.250-253.2562
Citation
M. T. Li, S. C. Li, N. Zhang, "Comparative Study on Fracture Behavior of the Reinforced Jointed Rock", Advanced Materials Research, Vols. 250-253, pp. 2562-2565, 2011
Online since
May 2011
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Price
$32.00
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