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（中國建筑西北設(shè)計(jì)研究院有限公司，　西安 710018）

［摘要］島形濱河場地屬于抗震不利地段，且地基中存在液化砂土層。針對(duì)該場地上某超高層建筑結(jié)構(gòu)設(shè)計(jì)，分析了場地土層分布及土性特點(diǎn)。通過定量計(jì)算，從概念上評(píng)估了建筑地基的穩(wěn)定性，同時(shí)對(duì)比分析了島形突出場地地震作用增大系數(shù)在規(guī)范與安評(píng)報(bào)告間的差別。設(shè)計(jì)給出建筑地基基礎(chǔ)以及上部結(jié)構(gòu)的抗液化措施，比較了淤泥質(zhì)場地的兩種地基處理方法。

［關(guān)鍵詞］超高層建筑；　島形濱河場地；　地基處理；　砂土液化；　地震效應(yīng)

中圖分類號(hào)：TU318文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：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

作者簡介：張新善，碩士，高級(jí)工程師,Email：zxinshan@163.com。