为研究岩石在中等应变速率下的动态加载或动静组合加载的破坏特性及本构关系提供了一种可行的试验方法。
This provides a feasible testing method for studying the behavior and constitutive relation of rock failure with medium stain rate under dynamical loading or static and dynamical combination loading.
针对其矿体不稳固、围岩中等稳固，以及存在较大采空区，矿体完整性遭破坏的情况，提出了上向进路充填法开采的设计方案。
Because of these problems such as unstable ore bodies, moderately-stable wall rock, large work-out area, the design proposal of mining these ore bodies by filling-up method is presented.
针对其矿体不稳固、围岩中等稳固，以及存在较大采空区，矿体完整性遭破坏的情况，提出了上向进路充填法开采的设计方案。
Because of these problems such as unstable ore bodies, moderately-stable wall rock, large work-out area, the design proposal of mining these ore bodies by filling-up method is presented.
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