房柱式开采巷道围岩控制数值模拟研究

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Abstract The deformation and failure characteristics and stress field distribution laws of roadway in coal face 1306 of pillar and chamber mining in Nantun coal mine are studied with software FLAC3.3. The stability of pillar is analysed. Based on analyzing the influence of mining depths，pillar widths and support parameters on surrounding rock control in roadway，the critical mining depth，reasonable pillar width and support parameter are determined.

Key words： pillar and chamber mining numerical simulation surrounding rock control

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https://rockmech.whrsm.ac.cn/EN/Y2002/V21/IS/2076

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