Study on the Instability Characteristics and Bolt Support in Deep Mining Roadways Based on the Surrounding Rock Stability Index: Example of Pansan Coal Mine

<div>The surface deformation rate of the IRMR. (a) The displacement rate of the roof to floor. (b) The displacement rate of the tow side.</div>

Advances in Civil Engineering

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Figure 15

Figure 15: Study on the Instability Characteristics and Bolt Support in Deep Mining Roadways Based on the Surrounding Rock Stability Index: Example of Pansan Coal Mine 

Figure 15 | Study on the Instability Characteristics and Bolt Support in Deep Mining Roadways Based on the Surrounding Rock Stability Index: Example of Pansan Coal Mine 