- 摘 要
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（北京三茂建筑工程檢測鑒定有限公司， 北京 100088）
［提要］概述了某高層建筑地基土中存在較厚的淤泥質(zhì)粉質(zhì)黏土層，設(shè)計和施工采用了水泥土攪拌樁進行地基處理，在建造過程中，地基產(chǎn)生較大的壓縮變形、上部結(jié)構(gòu)產(chǎn)生較大的傾斜且無穩(wěn)定趨勢等情況。分析了地基壓縮變形和上部結(jié)構(gòu)傾斜產(chǎn)生和發(fā)展的特點、水泥土攪拌樁成樁質(zhì)量等，得出了本工程地基基礎(chǔ)設(shè)計的概念性失誤、選取了不適合地基基礎(chǔ)方案是地基過量變形的主要原因等結(jié)論。
［關(guān)鍵詞］高層建筑； 水泥土攪拌樁； 軟土地基； 地基變形
中圖分類號： TU433 文獻標識碼： A文章編號： 1002-848X(2016)S1-0840-04
Cause analysis of excessive deformation for a high-rise building with soft soil foundation
Zhang Yilei， Li Hui， Gao Xiaowang
（Beijing Sanmao Test ＆ Appraisal of Construction Engineering Co.， Ltd.， Beijing 100088， China）
Abstract: Thick layer of silt clay exists in foundation soil of a high-rise building was summarized. Composite foundation with cement deep mixed columns were used in ground treatment, foundation excessive deformation and building inclination has been found in the construction process, and no stability trend. The characteristics of foundation deformation and building inclination and quality of cement deep mixed columns were analyzed. The results show that, wrong conceptual design and unsuitable foundation design scheme lead to the excessive deformation of foundation soil.
Keywords: high-rise building； cement deep mixed column； soft soil foundation； foundation deformation
作者簡介：張宜磊，碩士，工程師，一級注冊結(jié)構(gòu)工程師，Email：zhangyilei2001@sina.com。
