Numerical modeling of fault-slip rockbursts remains a great challenge due to the inherent difficulties in the simulation of fault slippage and rock failure under dynamic ground conditions. A sophisticated numerical method based on the distinct element method is proposed to simulate fault-slip rockbursts. The method successfully simulates the generation of a seismic event induced by fault slip. The seismic event generates seismic waves that spread out in a pattern that vibrating in a direction parallel to the fault and moving in the fault normal direction then triggers rockbursts when reaching an opening. Many features associated with seismic waves are produced using the proposed method including the fault growth process, the radiation pattern of the P- and S- waves, and the dissipation of seismic energy. The effect of fault geometry on the characteristic of the seismic event and the triggering of rockbursts is examined. It is found that the magnitude of the seismic event generated by fault slippage is related to the stress field of the fault. Both P and S waves can trigger rockbursts, depending on whether the wave is incident on the tunnel surface at an oblique angle. The seismic waves generated by fault sliding can be successfully blocked by a soft zone. The findings of this study provide useful insight into the source mechanism of rockbursts and the control of the accompanying damage. The proposed method shows promise for simulating earthquakes.

由于在动态地面条件下模拟断层滑动和岩石破坏的固有困难，断层滑动岩爆的数值模拟仍然是一个巨大的挑战。提出了一种基于离散元法的复杂数值模拟方法，对断层滑动岩爆进行了数值模拟。该方法成功地模拟了由断层滑动引起的地震事件的产生。地震事件产生的地震波以沿平行于断层的方向振动并沿断层法线方向移动的方式传播，然后在到达开口时触发岩爆。使用所提出的方法可以产生与地震波有关的许多特征，包括断层生长过程，P波和S波的辐射方向图以及地震能量的耗散。研究了断层几何形状对地震事件特征和岩爆触发的影响。发现断层滑动产生的地震事件的大小与断层的应力场有关。P波和S波都可以触发岩爆，具体取决于该波是否以倾斜角度入射到隧道表面。断层滑动产生的地震波可以被软带成功阻挡。这项研究的发现为了解岩爆的发生机理和控制伴随的破坏提供了有用的见识。所提出的方法对模拟地震具有广阔的前景。P波和S波都可以触发岩爆，具体取决于该波是否以倾斜角度入射到隧道表面。断层滑动产生的地震波可以被软带成功阻挡。这项研究的发现为了解岩爆的发生机理和控制伴随的破坏提供了有用的见识。所提出的方法对模拟地震具有广阔的前景。P波和S波都可以触发岩爆，具体取决于该波是否以倾斜角度入射到隧道表面。断层滑动产生的地震波可以被软带成功阻挡。这项研究的发现为了解岩爆的发生机理和控制伴随的破坏提供了有用的见识。所提出的方法对模拟地震具有广阔的前景。