Now a conclusion comes: the stability of stope not only has a relationship with the size of the exposed roof, but the exposed surface shape has a crucial influence on its stability.
得到结论：采场稳定性不仅与顶板暴露面大小有关，暴露面形状对其影响也是至关重要的。
The roof shape optimization is one of the important means to control the ground pressure. A long strip of exposed roof surface shape can improve productivity of the stope and ensure mining safety.
优化采场顶板暴露面积形状是控制地压的重要手段之一，采用长条形顶板暴露面，能提高采场生产能力和保证回采的安全性。
The roof shape optimization is one of the important means to control the ground pressure. A long strip of exposed roof surface shape can improve productivity of the stope and ensure mining safety.
优化采场顶板暴露面积形状是控制地压的重要手段之一，采用长条形顶板暴露面，能提高采场生产能力和保证回采的安全性。
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