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Stability analysis and predictive modeling of mine pressure manifestation along the air-retained roadway

Rui Liu

Rui Liu

China Energy Shendong Coal Group Daliuta Coal MineShenmu, China
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Liu, Rui
  
19 mar 2025
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Data publikacji: 19 mar 2025
Otrzymano: 09 paź 2024
Przyjęty: 29 sty 2025
DOI: https://doi.org/10.2478/amns-2025-0514
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© 2025 Rui Liu, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Optical fiber monitoring system
Optical fiber monitoring system

Figure 2.

Horizontal stress variation of coal support in mining roadway
Horizontal stress variation of coal support in mining roadway

Figure 3.

Variation in coal seam displacement in mining tunnels
Variation in coal seam displacement in mining tunnels

Figure 4.

Vertical stress variation of roof in mining roadway
Vertical stress variation of roof in mining roadway

Figure 5.

Variation in displacement of the roof of the mining roadway
Variation in displacement of the roof of the mining roadway

Figure 6.

Prediction results of each model
Prediction results of each model

Figure 7.

Prediction results of coal pillar data
Prediction results of coal pillar data

Mechanical parameters of rock strata

Lithology B/(kg·m-3) S/GPa V/GPa I/° C/MPa T/MPa
Fine sand 2140 12.31 16.28 32 7.86 4.68
Sandy shale 2380 1.72 2.62 38 4.73 3.82
Coal 2450 0.63 1.17 34 2.19 1.15
Silt sandstone 2320 9.84 14.96 33 6.24 3.69
Mesosandstone 2100 8.92 10.58 31 3.17 2.85
Mudstone 2440 1.04 2.41 35 2.21 1.06

Prediction of each test station

Test station MSE RMSE MAE R2
Teat station 1 0.17 0.28 0.32 0.986
Teat station 2 0.14 0.21 0.11 0.987
Teat station 3 0.11 0.12 0.09 0.998

Error comparison of each model

Model MSE RMSE MAE R2
LSTM 11.43 6.87 5.84 0.32
CatBoost 5.97 3.26 3.17 0.59
B-CatBoost 0.42 0.71 0.49 0.99

B-CatBoost model training results

Proportion/% MSE RMSE MAE
50 48.36 8.71 6.82
70 10.29 5.47 3.25
90 2.84 1.48 1.21
Język:
Angielski
Częstotliwość wydawania:
1 razy w roku
Dziedziny czasopisma:
Nauki biologiczne, Nauki biologiczne, inne, Matematyka, Matematyka stosowana, Matematyka ogólna, Fizyka, Fizyka, inne
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