Paper Title:
The Creep Rupture Numerical Simulation of Coal (Rock) Layered Slope
  Abstract

With rapid development of the national open mining coal resources, which generated lots of open-pit slope, and typically coal(rock) layered slope,under the external and internal structure function, it caused massive landslide with time increasing. Large coal(rock) slope deformation is not instantaneous, but rather the result of a long slow rheology, which is the main forms of creep; which is a serious threat to mining enterprise and the safety of workers. Appling the maximum tensile stress theory and establishing the creep rupture judgment criteria, And finite description of the creep cracks initiation, expansion and gathering. Based on FEPG software, programmed creep rupture module, it generated crack at the vertical direction of first principal stress vector, The crack propagation continue to find the maximum of the first principal stress, which achieved tensile strength and creep craze of elements, this process is continuously cycled. In Haizhou open-pit national mine-park, simulated the coal(rock) separation layer creep rupture, and the results of measurement and simulation was coincided; its study provided basis for prevention and disaster of coal (rock) slope.

  Info
Periodical
Advanced Materials Research (Volumes 250-253)
Edited by
Guangfan Li, Yong Huang and Chaohe Chen
Pages
271-277
DOI
10.4028/www.scientific.net/AMR.250-253.271
Citation
F. He, L. G. Wang, Z. X. Yao, L. L. Zhang, G. C. Zhao, "The Creep Rupture Numerical Simulation of Coal (Rock) Layered Slope", Advanced Materials Research, Vols. 250-253, pp. 271-277, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Xun Wen, Nai Xian Hou, Zhu Feng Yue
Abstract:Based on the microstructure change and damage characteristics of single crystal, a two-state-variable crystallographic creep damage...
1322
Authors: Bao Jie Fu, Min Tu
Abstract:High stress makes backfill body present the rheological properties in deep mine. This paper first uses RRTS-ⅢA to carry on creep test of...
3156
Authors: Jürgen Malzbender, G. Pećanac, Stefan Baumann
Abstract:Ba0.5Sr0.5Co0.8Fe0.2O3 – δ is a mixed ion-electron conductor with high...
303