Soviet Mining

, Volume 1, Issue 5, pp 448–454 | Cite as

Changes in rock pressure manifestations when working pre-wetted coal seams

  • V. I. Murashov
  • Ya. G. Shliomovichus
Rock Mechanics and Rock Pressure


  1. 1.

    The distance from the working face to the abutment pressure maximum (the plastic zone in the vicinity of the face) greatly increases with increasing moisture content of the solid coal.

  2. 2.

    The stress concentration coefficient in the abutment pressure zone depends on the extent of the plastic zone, and decreases with increase in the latter.

  3. 3.

    Pre-wetting of wide areas of solid coal has a beneficial effect on the behavior of the surrounding rock. Roof displacement in the supported waste area is less for wetted seams than for nonwetted seams, worked under the same conditions.



Coal Seam Plastic Zone Rock Burst Rock Pressure Increase Moisture Content 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Literature Cited

  1. 1.
    O. L. Chernov, V. I. Murashov, and Ya. G. Shliomovichus, The influence of pre-wetting on the mechanical properties of coal and the stressed state of the solid coal. Problems of Rock Pressure, No. 21, Novosibirsk (1964).Google Scholar
  2. 2.
    G. I. Barenblatt and S. A. Khristianovich, Roof caving in mine workings, Izv. AN SSSR, OTN, No. 11 (1955).Google Scholar
  3. 3.
    S. V. Kuznetsov, Roof Control of a Mine Working with Supports and Coal Pillars in the Waste Area [in Russian], PMFT (1964).Google Scholar
  4. 4.
    S. V. Kuznetsov, Stress in the solid coal during extraction operations. Report to the All-Union Strata Control Conference. Symposium VNIMI [in Russian], Leningrad (1965).Google Scholar
  5. 5.
    S. G. Avershin, I. M. Petukhov, B. V. Rozov, and V. E. Budkov, Suppressing the influence of shock bumps in Soviet pits, Ugol', No. 8 (1962).Google Scholar
  6. 6.
    L. N. Famin A new method of studying stress in a burst-prone seam and determining advanced borehole parameters. Symposium: Suppression of Bursts in Coal Pits [in Russian], Moscow, Gos. nauch. -tekhn. izd-vo lit. po gorn. delu (1962).Google Scholar
  7. 7.
    L. B. Famin, Apparatus for experimental determination of stress near the working face of a coal seam, Tekhnologiya i Ékonomika Uglegobychi, No. 4 (1960).Google Scholar
  8. 8.
    V. A. Smirnov and N. I. Kalshnikov, Multicamouflet shotfiring as an effective way of suppressing the danger of rock bursts in mine workings. Symposium: Experience Gained in Working Pits Prone to Shock Bumps [in Russian], Moscow, GOSINTI (1964).Google Scholar
  9. 9.
    V. I. Murashov, Influence of pre-wetting on stress in the solid coal and on the behavior of the roof rocks. Problems of Rock, Pressure, No. 23, Novosibirsk (1964).Google Scholar
  10. 10.
    K. V. Ruppeneit, Pressure and Displacement of Strata in Faces in Level Seams [in Russian], Moscow, Ugletekhizdat (1957).Google Scholar

Copyright information

© Consultants Bureau 1966

Authors and Affiliations

  • V. I. Murashov
    • 1
  • Ya. G. Shliomovichus
    • 1
  1. 1.VostNII Institute for Safety in MinesKemerovo

Personalised recommendations