Floor heave is familiar distortion and damage form in deep soft rock roadway, how to control floor heave effectively and economically is an urgent problem.
深井软岩巷道底鼓是常见的变形和破坏形式，如何有效、经济的控制底鼓是深部开采急需解决的问题。
Field practice shows that the method of making loose blasting deeply in the area of the mining abutment pressure can control the entry floor heave effectively and meet the need of the production.
现场实践表明，采用底板支承压力区进行深部松动爆破能有效控制回采巷道底鼓，满足生产需要。
Numeric analysis using computer and simulation test with equivalent materials show that reinforcement of different positions of the gateway will help to control the floor heave.
计算机数值模拟及相似材料模拟试验研究表明，加固不同部位对控制底臌均有一定效果。
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