...动态卸荷；爆破荷载 中图分类号：TU 457 文献标识码：A 文章编号：1000–6915(2005)增 1–4750–05 [gap=1149]Key words：rock mechanics；initial stress；dynamic unloading；blasting load (应力重分配)过程持续时间较长、涉及的范围较大， ..
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The results indicate that the damage area induced by the dynamic unloading is larger than that induced by the static unloading during blasting excavation.
计算结果表明在高地应力条件下进行爆破开挖时，初始应力动态卸荷在岩体中所产生的损伤范围比准静态卸荷所产生的损伤范围要大；
The theory about stress wave and its propagation is employed to analyze the effect of dynamic unloading during excavation of jointed rock mass slope under high geostress.
利用应力波理论分析高地应力条件下节理岩体边坡开挖过程中的动态卸荷效应，探讨卸荷松动后节理岩体渗透特性的变化规律。
The process of the dynamic unloading of the initial stress can be employed to explain the mechanism of the loosing of jointed rock mass during rock excavation by blasting.
岩体初始应力场的动态卸载过程能较好解释节理岩体开挖过程的松动机理。
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