Research on the Evolution Characteristics of Rock Mass Response from Open-Pit to Underground Mining

<div>The mining status of Jinning Phosphate Mine no. 2 pit. (a) Current status of surface mining. (b) Development of fissures in open-pit mining at this stage.</div>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Research on the Evolution Characteristics of Rock Mass Response from Open-Pit to Underground Mining 