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。
Choosing reasonable mining methods can ensure safety in mining and reduce the earth subsidence caused by mining.
合理选择采煤方法，可进一步确保安全开采，减轻因采煤造成的地表沉降。
To ensure mining safety, in-situ stress measurement in Linglong gold mine is carried out in two periods.
介绍玲珑金矿主矿区深部和浅部两期地应力测量的过程和结果。
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