In all the factors that affect the roofstability, blasting vibration is a very important one.
在影响地下结构顶板稳定性的诸多因素中，爆破震动的影响也是一个相当重要的因素。
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Based on rock mechanics theory and 3d numerical modeling, a synthetical safety evaluation for the roofstability has been put forward and verified by the case study.
By taking the on-site monitoring and research as a tool, the influence of coal mining, coal pillar size and underwater on the roofstability of coal roadways is analyzed.