Paper Title:
Research on Distribution and Evolution Law of the Damage-Fracture Field in Mining Process
  Abstract

The distribution and spatiotemporal evolution law of the mining-induced fracture field was studied by means of damage mechanics. The damage variable correlated with the excavation process was introduced, which was used to describe the distribution characteristics of fractures in rock mass. In accordance with the damaged theory, the elastic finite element program was developed, by which the analysis of mining process of one coal seam was made of. The material damage accumulation taken into consideration, the distribution and evolution law of the volumetric strain, stress and damage field was obtained, which provided a theoretic reference for the design of gas drainage and improving the efficiency of gas extraction.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
5964-5967
DOI
10.4028/www.scientific.net/AMR.243-249.5964
Citation
A. B. Xu, F. Gao, H. M. Cheng, X. G. Liu, "Research on Distribution and Evolution Law of the Damage-Fracture Field in Mining Process", Advanced Materials Research, Vols. 243-249, pp. 5964-5967, 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: Wei Shen Zhu, Shu Cai Li, Q. Zhang, X. Qiu
Abstract:This paper puts forward a damage-fracture mechanical model and a damage-rheology mechanical model for the jointed rock mass of the high...
1385
Authors: Sang Mook Han, Xiang Guo Wu, Sung Wook Kim, Su Tae Kang
Abstract:Direct uniaxial tension test of ultra high performance cementitious composites I shape specimens have been investigated in this paper. A...
829
Authors: Zhi Gang Zhu, Zhi Liang Wang, Yong Chi Li
Abstract:A damage evolution law for porous phenolic composites is developed by using phenomenological point, which along with the improved...
106
Authors: Jian Yuan, Wen Gang Zhu, Min Chen
Chapter 3: Security and Life Cycle Engineering Design of Civil Engineering
Abstract:The failure process for an extra-long pre-stressed concrete beam under static loads was simulated based on the elastic damage theory with the...
1318
Authors: M.S. Niazi, H.H. Wisselink, V. Timo Meinders
Incremental and Sheet Metal Forming
Abstract:Local damage models are known to produce pathological mesh dependence in finite element simulations. The solution is to either use a...
845