Paper Title:
Deformation Analysis for Coal and Gas Outburst Cavity
  Abstract

Outburst cavity formed during coal and gas outburst can be pear shaped, elliptical, or just like an irregularly elongated ellipsoid, its capacity is always smaller than the volume of ejected coal. And the gas emission quantity is almost 4 to 10 times as gas content in ejected coal. These are two different expressions of the same problem. To find the reasons for the decrease of outburst cavity volume and the increase of gas emission quantity per ton, by using the finite element code ANSYS, the damage zone and the failure zone of the outburst cavity were determined based on the static and dynamic combination method. In this paper, the reason for the decrease of the outburst volume was explained.

  Info
Periodical
Chapter
Chapter 5: Materials in Energy and Environment (2)
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
2607-2613
DOI
10.4028/www.scientific.net/AMM.121-126.2607
Citation
Q. T. Hu, W. B. Wu, G. Q. Cheng, "Deformation Analysis for Coal and Gas Outburst Cavity", Applied Mechanics and Materials, Vols. 121-126, pp. 2607-2613, 2012
Online since
October 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: Shan Yong Wang, S.K. Au, K.C. Lam, Chun An Tang
Abstract:By using numerical code RFPA2D (Rock Failure Process Analysis), the evolution of fracture around cavities subjected to uniaxial and polyaxial...
2598
Authors: Mei Juan Song, Ling Yun Wang, Rao Chuan Liu, Zhi Xiang Wang
Abstract:After superplastic tensile tests and quantitative analysis of cavity volume fraction, the damage evolution equation based on the law of the...
831
Authors: Xue Yi Zhang, Guang Ping Zou, Hong Liang Li
Abstract:Sacttering of SH-wave of combined deffectiveness which included single circular cavity and double linear cracks in elastic medium was...
825
Authors: Wei Wang, Shi Chao Liao, Peng Ding, Dong Zhu Chen
Abstract:Back-cavity of lining is a main factor resulting in tunnel defect. But as the concealment of the cavities behind linings, it is hard to judge...
1265
Authors: Chuan Zhi Mei, Lin Hua Piao, Quan Gang Yu, Bao Li Zhang, Xia Ding, Xing Wang
Chapter 7: Transmission and Control of Fluid
Abstract:In this paper, the pendulum characteristic of nature convection gas in dimensional enclosure is analyzed by FEM. Using ANSYS-FLOTRAN CFD...
1120