Study on Instability Mechanism of Extraction Structure under Undercut Space Based on Thin Plate Theory in Block Caving Method

<div>Evolution characteristics contour of minimum principal stress in <i>XOZ</i> cutting plane of extraction structure. (a) The undercut strike length was 90 m. (b) The undercut strike length was 210 m.</div>

Shock and Vibration

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Figure 3

Figure 3: Study on Instability Mechanism of Extraction Structure under Undercut Space Based on Thin Plate Theory in Block Caving Method 