某高校主楼工程打桩前后的波速对比测试

Comparison measurement of wave velocity in some institute main-building before piling and after

讨论了打桩对场地类别的影响和减轻震害的机理。通过对淮阴工学院主楼地基在打桩前后的场地剪切波速对比测试 ,发现打桩有改变场地类别的可能 ,建议《规范》[1] 增加对打桩建筑特别是打桩较密的高层建筑在打桩后 ,应再次进行剪切波速测试并对比场地类别的改变等内容 ,从而提高工程设计的经济效益和社会效益。

This paper discusses the influence of piling on site classification and the principle of weaken earthquake disasters by piling.Through comparison measurement and analyses of shear-wave velocity in subsoil of Huaiyin Institute of Technology main-building before piling and after,the author discovers the site classification may be changed by piling.At last,the author suggests the CODE must supplement some content on the change of site classification by piling and measuring shear-wave velocity again in the subsoil of the piling building after piling,particularly,in the subsoil of the dense piling high building after piling.It can increase the economy benefit and society benefit.