Academic Journal of Architecture and Geotechnical Engineering, 2026, 8(1); doi: 10.25236/AJAGE.2026.080107.
Zhishuai Lou1, Weili Yang1,2
1School of Intelligent Construction and Architectural Engineering, Zhongyuan University of Technology, Zhengzhou, Henan, 450007, China
2Architectural Design and Research Institute, Zhongyuan University of Technology, Zhengzhou, Henan, 450007, China
The shaft protection coal pillar is in a high static load environment for a long time, the impact mechanism is different from the mining area, and the prevention and control is more hidden and sudden. Aiming at the impact problem without mining disturbance, this study reveals the static instability mechanism : as a deep isolated bearing structure, coal pillar forms static load concentration under overlying strata and tectonic stress ; long-term high stress leads to rheology and strength degradation of coal and rock mass, decrease of bearing capacity and accumulation of elastic energy. The essence of this kind of impact is the instability of coal pillar caused by the coupling of high static load and time effect. The critical criterion is related to load, coal pillar strength and time. Based on this, an active pressure relief method based on long-term monitoring and stress transfer is proposed to provide support for the safety of key facilities in the mine.
huge thick conglomerate; shaft coal pillar; rock burst; prevention
Zhishuai Lou, Weili Yang. Study on the mechanism of rock burst in shaft coal pillar under thick conglomerate. Academic Journal of Architecture and Geotechnical Engineering (2026), Vol. 8, Issue 1: 56-63. https://doi.org/10.25236/AJAGE.2026.080107.
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