Metamaterials have been widely studied for their advantage in the effective control of the propagation of mechanical waves. However, existing methods are limited in controlling the propagation of seismic surface waves and hardly are put in practical engineering applications. To overcome this limitation, we introduce a new type of metasurface with ultra-wide band gaps for controlling the seismic surface waves, which can be further applied to engineering applications. The metasurface is designed by using an easy and simple method named the destructive interference, rather than the local resonance observed in previous methods. Furthermore, the designed unit structure can construct a periodic structure by using the functional gradient design and combination arrangement, which results in hitherto better or even unprecedented performance in controlling the propagation of seismic surface waves. Moreover, the proposed metasurface provides new opportunities for practical engineering applications, as demonstrated by the metabridge can effectively protect the bridge from the damage of earthquakes.

由于超材料在有效控制机械波传播方面的优势，已经对其进行了广泛的研究。但是，现有方法在控制地震面波的传播方面受到限制，并且几乎没有投入实际的工程应用。为了克服这一限制，我们引入了一种具有超宽带隙的新型超表面，用于控制地震地表波，并将其进一步应用于工程应用。通过使用一种称为破坏性干涉的简单方法，而不是先前方法中观察到的局部共振来设计超颖表面。此外，设计的单元结构可以通过使用功能梯度设计和组合布置来构造周期性结构，从而在控制地震面波的传播方面取得了迄今为止甚至更好甚至前所未有的性能。此外，拟建的超颖表面为实际工程应用提供了新的机会，正如超颖桥所展示的那样，它可以有效地保护桥梁免受地震破坏。