砂垫层厚度及基底压力对地面地震反应的影响

我国地震区分布范围广，发震频繁。随着科学技术的进步、计算机的运用等，国内外对建筑结构减震、隔震方法的研究与应用取得了很大的发展，但仍有许多问题有待解决。特别是我国为农业大国，目前中、低层房屋仍然较多，采用在基础与地基之间设置砂垫层的方法，以最少的造价，达到减小或不放大地震对地面的影响，最终达到减震、隔震的目的是一种切合实际的方法。在研究了砂垫层厚度及基底压力对地面地震反应的影响后，得到了一些有益的结果。

The Study of Seism Response of Sand Cushion in Different Thickness and Different Foundation Pressure

Earthquake occurs in China frequently, and more is in countryside or town. Now there are many brick-and-concrete composite construction or brick-and-timber construction in countryside and town, and will still be major style in future. So, it is necessary for these buildings to study seismic response. Sand cushion between foundation and soil can reduce the calamity by earthquake. Sand cushion in different thickness and different foundation pressure results different seismic response. The calculations of sand cushion can prove it.