Research Article
Research on Stability Control Technology of Mining Roadway Based on Energy Transformation
Figure 3
Energy evolution curve of sandstone under different confining pressure. (a) Confining pressure 5 MPa. (b) Confining pressure 10 MPa. (c) Confining pressure 15 MPa. (d) Confining pressure 20 MPa.
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| (b) |
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| (d) |