岩体次生应力 induced stress of rock mass
原生和次生爆炸应力波 the primary and secondary blast stress waves
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卸荷速率及初始应力场大小主要影响岩体卸荷强度及次生裂缝的数量，对裂隙扩展方式影响相对较少；
The magnitude of unloading velocity and initial stress mainly influence strength and amount of sub-cracks on fissured rocks, but little on the law of expanding mode and deformation.
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