Advances in Civil Engineering / 2021 / Article / Fig 17

Research Article

Study on the Retention of Large Mining Height and Small Coal Pillar under Thick and Hard Roof of Bayangaole Coal

Figure 17

Stress distribution in coal pillar with different widths. (a) Vertical stress in pillar. (b) Horizontal stress in pillar (axial direction of parallel roadway). (c) Horizontal stress in pillar (vertical roadway axial direction).

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