Study on the Control Effect of Surrounding Rock Stress in Coal Mine Roadways on Coal and Gas Outburst

DOI

10.2991/978-94-6239-783-5_14How to use a DOI?

Keywords

Surrounding Rock Stress; Mining Stress; Support Stress; Coal and Gas Outburst

Abstract

In order to reveal the control mechanism of surrounding rock stress on coal and gas outburst, and make up for the insufficient quantitative research of mining stress and support stress in outburst prevention, taking E0103 transportation roadway of Guanyinshan Coal Mine in Yunnan as the engineering background, ZLGH three-direction borehole dynamometer and MGH bolt-cable dynamometer were used to monitor the mining stress evolution and support stress characteristics in situ. Residual gas pressure, residual gas content, drilling cuttings gas desorption index K₁ and drilling cuttings quantity S were measured synchronously. The results show that the mining stress increases first and then tends to be stable with roadway excavation, and the roof support stress is significantly higher than that of the rib. The optimized bolt-cable combined support forms a high support stress field, transfers the stress peak to the deep coal mass, reduces the concentrated stress on the coal wall, and makes all drilling cuttings quantity S below the critical value. The support stress blocks the outburst initiation conditions by improving the surrounding rock bearing capacity and optimizing the stress and energy field. The research provides a theoretical basis and engineering reference for roadway support optimization and outburst prevention in deep coal mines.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Ding Hong
PY  - 2026
DA  - 2026/09/30
TI  - Study on the Control Effect of Surrounding Rock Stress in Coal Mine Roadways on Coal and Gas Outburst
BT  - Proceedings of the 2026 2nd International Conference on Resilient City and Safety Engineering (ICRCSE 2026)
PB  - Atlantis Press
SP  - 136
EP  - 146
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6239-783-5_14
DO  - 10.2991/978-94-6239-783-5_14
ID  - Hong2026
ER  -