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（北京市建筑設(shè)計研究院有限公司, 北京 100045）
[摘要] 某高層結(jié)構(gòu)地上36層，建筑總高度接近150m，主樓與純地下室連成一體，置于同一個基礎(chǔ)筏板上。主樓核心筒與其外圍框架、主樓與純地下室之間荷載差異大，地基基礎(chǔ)須同時滿足承載力和地基變形控制要求。本文從地基基礎(chǔ)選型入手，著重介紹了后注漿鉆孔灌注樁設(shè)計、樁筏基礎(chǔ)與地基土相互作用分析、試驗樁數(shù)據(jù)分析、沉降變形計算分析與觀測數(shù)據(jù)等，為較高的高層建筑基礎(chǔ)設(shè)計積累了經(jīng)驗，對類似工程設(shè)計有參考意義。
[關(guān)鍵詞] 高層建筑； 后注漿鉆孔灌注樁； 相互作用分析； 樁筏基礎(chǔ)
中圖分類號：TU473.1+2 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2013)S1-1483-05
作者簡介：闞敦莉，工學(xué)學(xué)士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：KDL163@163.COM。
Analysis of interaction between post grouting pile raft foundation and soil of a high-rise building
(Beijing Institute of Architectural Design,
Abstract: A high-rise building is 36 floors above ground with total height close to 150m, the main building and the pure basement connecting together place on the same raft foundation. There are great difference between the load of main building and pure basement, core tube and peripheral frame of main building, therefore, the bearing capacity and the deformation of foundation must be satisfiedat the same time. Starting from the selection of the foundation type, design of post-grouting bored piles, analysis of interaction between pile raft foundation and soil, analysis of the experimental data of piles, settlement calculation and observation of data etc are emphatically introduced. The experience of foundation design for high-rise building is accumulated and can be referred to the similar project design.
Keyword: high-rise building; post grouting bored pile;analysis of interaction; piled raft foundation
