Numerical Simulation of the Stress Field in Repeated Mining of Coal Seams Based on In Situ Stress Measurement

Numerical Simulation of the Stress Field in Repeated Mining of Coal Seams Based on In Situ Stress Measurement

We established an evaluation index of the rock mass stress state for underground coal mines using the strength-stress ratio based on the measured in situ stress and the generalized Hoek–Brown strength criterion. Three in situ stress states, σcm/σ1m 

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Veröffentlicht in:Mathematical problems in engineering 2021-11, Vol.2021, p.1-13
Hauptverfasser: Yang, Donghui, Yang, Bohu, Lv, Zhaoheng, Li, Yongming, Cheng, Hongming, Ning, Zhangxuan
Format: Artikel
Sprache:eng
Schlagworte:
Coal mines
Coal mining
Compressive strength
Engineering
Geology
Initial conditions
Mines
Regression models
Rock masses
Roofs
Stress distribution
Stress measurement
Stress ratio
Stress state
Three dimensional models
Underground mines
Underground mining
Work face
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Zusammenfassung:We established an evaluation index of the rock mass stress state for underground coal mines using the strength-stress ratio based on the measured in situ stress and the generalized Hoek–Brown strength criterion. Three in situ stress states, σcm/σ1m 
ISSN:1024-123X
1563-5147
DOI:10.1155/2021/3588868