Research on distribution laws of plastic strain in cutting - caving ratio in mechanized longwall and thick-seam mining

https://tapchi.humg.edu.vn/en/archives?article=645
  • Affiliations:

    1 Trường Đại học Mỏ - Địa chất, Việt Nam

  • Received: 8th-July-2016
  • Revised: 17th-Aug-2016
  • Accepted: 30th-Aug-2016
  • Online: 30th-Aug-2016
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Abstract:

The paper employs the universal distinct element code (UDEC) to analyse the effect of cutting-caving ratio on the distribution laws of plastic strain of the fully mechanized top coal caving face (FMTCC). The results indicate if the ratio of cutting to caving height decreases or the cutting height increases, then the plastic failure of the FMTCC suddenly increases and the plastic strain zone also expands. Consequently, the variation of cutting to caving height ratio significantly changes the stress environment around the longwall, provides convenient conditions to coal mining, and increases the stable condition of the FMTCC.

How to Cite
Bui, T.Manh, Tran, T.Van and Nguyen, Q.Van 2016. Research on distribution laws of plastic strain in cutting - caving ratio in mechanized longwall and thick-seam mining (in Vietnamese). Journal of Mining and Earth Sciences. 55 (Aug, 2016).