- 摘 要
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（清華大學建筑設計研究院有限公司， 北京 100084）
［摘要］大面積的整體地下室上方，通常布置有高度、層數(shù)相差較多的不同建筑物。對應不同的建筑物，如果其下方的基底壓力相差較多，就要求采用不同的地基方案，以滿足不同的承載力和差異沉降要求。本文的工程實例中，大面積地下車庫上方布置有近百米的高層塔樓和50m高的板式小高層，在地下室對應的不同部位分別采用了天然地基、灌注樁基和復合樁基（CFG樁）。對于灌注樁和CFG樁，根據(jù)相關的規(guī)范方法進行了沉降量估算；同時給出了程序的協(xié)同變形計算結果。提出沉降分析時要重視相鄰區(qū)域沉降觀測數(shù)據(jù)的參考作用。
［關鍵詞］地基基礎設計； 樁基； 復合樁基； 沉降計算
中圖分類號： TU473.1 文獻標識碼： A文章編號： 1002-848X(2016)S1-0806-04
Foundation design for buildings with different heights on one large basement
Tong Jie
（Architectural Design & Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China）
Abstract: For one large basement, usually several buildings were laid above. Corresponding to the upper buildings, the earth pressures are different beneath the basement, and different foundation designs are required to satisfy the bearing capacities and building deformations. In the foundation design presented in this paper, several residential buildings with the heights of 100m and 50m were laid above a large underground garage. Soil foundation was designed for the underground garage, while pile foundation and composite pile (CFG piles) foundation were designed for the 100m and 50m high buildings respectively. For the pile and the composite pile foundations, settlements were calculated based on the procedures given by the codes; while the interactive deformation analysis of the whole base was also performed. It was emphasized that the settlement record data of the other buildings in the neighboring areas are very useful to the settlement analysis.
Keywords: foundation design; pile foundation; composite pile foundation; settlement calculation
作者簡介： 佟杰,本科，工程師，Email:tongjie@thad.com.cn。
