（中国建筑西北设计研究院有限公司，　西安 710018）

［摘要］岛形滨河场地属于抗震不利地段，且地基中存在液化砂土层。针对该场地上某超高层建筑结构设计，分析了场地土层分布及土性特点。通过定量计算，从概念上评估了建筑地基的稳定性，同时对比分析了岛形突出场地地震作用增大系数在规范与安评报告间的差别。设计给出建筑地基基础以及上部结构的抗液化措施，比较了淤泥质场地的两种地基处理方法。

［关键词］超高层建筑；　岛形滨河场地；　地基处理；　砂土液化；　地震效应

中图分类号：TU318文献标识码：A文章编号：1002-848X(2016)24-0056-05

Analysis on the foundation stability and earthquake effect of super high-rise building on the island riverside site

Zhang Xinshan，Yang Qi，Xu Rong，Wei Wei

(China Northwest Architecture Design and Research Institute Co., Ltd., Xi′an 710018, China)

Abstract:The island riverside site belongs to the seismic unfavorable site, and there is liquefied sandy soil in its ground. According to the structural design of a super high-rise building on the site, the distribution and characteristics of the soil on the site were studied. Through quantitative calculation, the stability of the building foundation was evaluated conceptually, and the difference of the amplification coefficient of seismic action of the island prominent site between the code and the safety evaluation report was compared comparatively. The anti-liquefaction measures of building foundation and upper structure were provided, and two foundation treatment methods of silt ground were also compared.

Keywords:super high-rise building; island riverside site; foundation treatment; sand liquefaction; earthquake effect

作者简介：张新善，硕士，高级工程师,Email：zxinshan@163.com。