Full
Outline
To enhance the accuracy and reliability of measuring the thickness of the surrounding rock loosened zone in roadways, a high-precision prediction model (PSO-Stacking) for the thickness of the loosened zone was proposed. This model employed interpretable artificial intelligence algorithms to address the black-box effect of machine learning algorithms and explained the prediction mechanism. The model was validated through an engineering case study at Xinglongzhuang Coal Mine. By incorporating SHAP analysis to interpret model decisions, the influence of surrounding rock loosened zone characteristics was revealed, thereby improving interpretability. The research results demonstrate that the PSO-Stacking model performs exceptionally well in predicting the thickness of the loosened zone, with high prediction accuracy and minimal error. On the test set, the R2 value reached 0.957, while the RMSE and MAE were 0.118 and 0.087, respectively. Global interpretability analysis of the prediction model indicates that roadway burial depth and joint development degree have the most significant impact on the prediction results. Local interpretability analysis reveals that burial depth considerably influences the thickness of the loosened zone in high-strength surrounding rock, while joint development has a lesser effect. According to the application in Xinglongzhuang Coal Mine, the average error between the predicted results and the actual values is only 4.31％, demonstrating that the proposed model can effectively predict the thickness of the surrounding rock loosened zone and reveal the influence of its characteristics. This study provides timely scientific reference for evaluating surrounding rock support and its effectiveness, meeting the demands of engineering practice.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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