Advertisement

Acta Mechanica Sinica

, Volume 4, Issue 1, pp 77–85 | Cite as

Steady advance of coal and gas bursts

  • Yu Shanbing
Article

Abstract

This paper establishes a one-dimensional model to analyse the mechanism of coal and gas bursts. It is found that the intrinsic factor governing bursts is the coupling of the initiation of the moving of coal fragments with the gas seepage. A typical (strong) burst can be treated as a steady advance process. The significant dimensionless parameters concerning bursts and an approximate burst criterion are given, and they are in good agreement with the statistics of field data.

Key Words

coal and gas burst steady advance two-phase flow seepage 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [1]
    Zheng Zhemin, On coal and gas bursts in view of magnitude estimate and dimensional analysis, Mechanics and Production, Beijing Univ. Press, (1982), 128–137, (in Chinese).Google Scholar
  2. [2]
    Zheng Zhemin and Ding Yansheng, A preliminary study of gas bursts, Proceedings of Mining Engineering Session II, (1985), Ba2.Google Scholar
  3. [3]
    Research Group of Instrumentational Forecast of Coal and Gas Bursts in Zhongliang Mountain Coal Mine, First field measurement of a coal and gas burst, Proceedings of the Second Sichuan Coal Mines' Symposium of Coal and Gas Bursts, edited by Chongqing Research Institute, Central Coal Mining Research Institute, China, (1978), 131–142, (in Chinese).Google Scholar
  4. [4]
    Ujihira, M., Higuchi, K. and Nabeya, H., Scale model studies and theoretical considerations on the mechanism of coal and gas outbursts, Proceedings of the 21st International Conference of Safety in Mines' Research Institutes, NSW, Sydney, (1985), 121–127.Google Scholar
  5. [5]
    Zbershik, M.N., Prevention of Gasdynamic Phenomena in Coal Mines, Technika, Kiev, (1984), 64, (in Russian).Google Scholar

Copyright information

© Chinese Society of Theoretical and Applied Mechanics 1988

Authors and Affiliations

  • Yu Shanbing
    • 1
  1. 1.Institute of MechanicsAcademia SinicaBeijingChina

Personalised recommendations