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Site Verification of Stress and Energy Field Evolution in MRADS Decompressed by Waterjets

  • Dazhao Song
  • Xueqiu He
  • Enyuan Wang
  • Zhenlei Li
  • Jie Liu
Chapter

Abstract

Waterjet pressure relief technologies in the typical specifications of both hydraulic directional slitting and rotary grooving can effectively free coal mass with main rock burst activity domain system (MRADS) from its internal accumulated pressure so as to attain the purpose of both energy dissipation and stress transfer. Thus, these technologies are expected to become effective means for rock burst treatment. To verify this on site, in this chapter, we introduce our specifically developed waterjet coalbed pressure relief system and conduct on-field experiments on the energy dissipation and stress transfer under MRADS pressure relief using related electromagnetic radiation (EMR) measures in Huozhou Coal and Electricity Xinzhi Coal Mine and Yi Coal Group Yuejin Coal Mine, China.

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Dazhao Song
    • 1
  • Xueqiu He
    • 1
  • Enyuan Wang
    • 2
  • Zhenlei Li
    • 1
  • Jie Liu
    • 3
  1. 1.School of Civil and Resources EngineeringUniversity of Science and Technology BeijingBeijingChina
  2. 2.School of Safety EngineeringChina University of Mining and TechnologyXuzhouChina
  3. 3.Department of Safety EngineeringQingdao University of TechnologyQingdaoChina

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