地震对建筑物造成的震害,就地基方面而言,有以下相互联系的两个方面:其一是表层地基的破坏。这种与地基强度概念相联系的震害,将直接导致建筑物的损坏。另一方面是地基虽未破坏,但建筑物因地面输入的振动而造成破坏。这时,除了地质构造、地形等因素的影响以外,场地土将作为地震波 Earthquake damage to buildings, in terms of foundations, has two interrelated aspects: one is the destruction of surface foundations. This earthquake damage linked to the concept of foundation strength will directly lead to damage to the building. On the other hand, although the foundation was not destroyed, the building was damaged due to the vibration of the ground input. At this time, in addition to the influence of factors such as geological structure and topography, site soil will serve as a seismic wave.