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(北京市建筑設(shè)計研究院，北京 100045)

［摘要］2010年上海世博會世博村E地塊改擴(kuò)建工程的特點(diǎn)，在于拆除后新建部分與保留改建部分緊鄰，且新建部分基坑較深，改建部分原結(jié)構(gòu)已使用較長時間等。因此確定新建部分結(jié)構(gòu)型式、基礎(chǔ)類型和改建部分上部結(jié)構(gòu)改造加固標(biāo)準(zhǔn)與方法、地基基礎(chǔ)處理方式等問題都是緊密相關(guān)、相互影響的。在通盤考慮了邊坡支護(hù)、施工順序等一系列相關(guān)因素后，新建部分采用鋼筋混凝土框架-核心筒結(jié)構(gòu)體系，其基礎(chǔ)采用無擠土效應(yīng)的鉆孔灌注樁，改建部分的基礎(chǔ)除與新建部分深基坑相鄰處采用錨桿靜壓樁進(jìn)行托換外，其余部分均采取措施實(shí)現(xiàn)了天然地基方案。

［關(guān)鍵詞］新建；改建；設(shè)計標(biāo)準(zhǔn)；沉降；沉降差；基礎(chǔ)與邊坡

Rebuilt and extended structure design of the building  in  E plot of Expo2010 Village

Fan Bo, Zhang Sheng, Wei Yu, Wang Yaorong, Zhang Ruhang(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:Lots of difficulties arise during the structure design of the building in  E plot of Expo2010 Village. The deep foundation ditch of the new part is very close to the reconstructed part which has been used a long time. Some design factors are closely related to each other, such as the structure type and foundation type of the new part, the design standards and the ground treatment of the reconstruction. Limited to the retaining and protecting for foundation excavation and the construction steps, bored cast-in-situ piles have been used in the new frame-wall building to avoid the pile driving effect, as the natural foundation used in the reconstructed part except the interspace where static bolt-piles were used.

Keywords: reconstruction building; standards; settlement; differential settlement; foundation and slope

作者簡介：范波，教授級高工，Email：Fanb99@sina.com。

參考文獻(xiàn)

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