Study on Monitoring Rock Burst through Drill Pipe Torque

Article English OPEN
Li, Zhonghua ; Zhu, Liyuan ; Yin, Wanlei ; Song, Yanfang (2015)
  • Publisher: Hindawi Publishing Corporation
  • Journal: Shock and Vibration (issn: 1070-9622, eissn: 1875-9203)
  • Related identifiers: doi: 10.1155/2015/371948
  • Subject: Physics | QC1-999 | Article Subject
    mesheuropmc: complex mixtures | equipment and supplies | education | respiratory tract diseases | otorhinolaryngologic diseases

This paper presents a new method to identify the danger of rock burst from the response of drill pipe torque during drilling process to overcome many defects of the conventional volume of drilled coal rubble method. It is based on the relationship of rock burst with coal stress and coal strength. Through theoretic analysis, the change mechanism of drill pipe torque and the relationship of drill pipe torque with coal stress, coal strength, and drilling speed are investigated. In light of the analysis, a new device for testing drill pipe torque is developed and a series of experiments is performed under different conditions; the results show that drill pipe torque linearly increases with the increase of coal stress and coal strength; the faster the drilling speed, the larger the drill pipe torque, and vice versa. When monitoring rock burst by drill pipe torque method, the index of rock burst is regarded as a function in which coal stress index and coal strength index are principal variables. The results are important for the forecast of rock burst in coal mine.
  • References (22)
    22 references, page 1 of 3

    Li, T., Cai, M. F., Cai, M.. A review of mining-induced seismicity in China. International Journal of Rock Mechanics and Mining Sciences. 2007; 44 (8): 1149-1171

    Kuksenko, V. S., Inzhevatkin, I. E., Manzhikov, B. T., Stanchits, S. A., Tomilin, N. G., Frolov, D. I.. Physical and methodological principles of rock burst prediction. Soviet Mining. 1987; 23 (1): 6-17

    Bieniawski, Z. T., Denkhaus, H. G., Vogler, U. W.. Failure of fractured rock. International Journal of Rock Mechanics and Mining Sciences and. 1969; 6 (3): 323-341

    Cook, N. G. W.. A note on rockbursts considered as a problem of stability. The Southern African Institute of Mining and Metallurgy. 1965; 65: 437-446

    Bardet, J. P.. Finite element analysis of rockburst as surface instability. Computers and Geotechnics. 1989; 8 (3): 177-193

    Wang, H., Ge, M.. Acoustic emission/microseismic source location analysis for a limestone mine exhibiting high horizontal stresses. International Journal of Rock Mechanics and Mining Sciences. 2008; 45 (5): 720-728

    Ge, M.. Efficient mine microseismic monitoring. International Journal of Coal Geology. 2005; 64 (1-2): 44-56

    Young, P. R.. Rock Bursts Andseismicity in Mines. 1993

    Leśniak, A., Isakqw, Z.. Space–time clustering of seismic events and hazard assessment in the Zabrze-Bielszowice coal mine, Poland. International Journal of Rock Mechanics and Mining Sciences. 2009; 46 (5): 918-928

    Mansurov, V. A.. Prediction of rockbursts by analysis of induced seismicity data. International Journal of Rock Mechanics and Mining Sciences. 2001; 38 (6): 893-901

  • Metrics
    No metrics available
Share - Bookmark