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（北京市建筑設(shè)計研究院有限公司， 北京 100045）
［摘要］北京新機場航站區(qū)由航站樓中心區(qū)、指廊、登機橋、綜合服務(wù)中心和高架橋等建筑組成，各建筑區(qū)域的結(jié)構(gòu)特點、基礎(chǔ)形式、基底標(biāo)高、地質(zhì)條件等差異較大，設(shè)計復(fù)雜程度高，施工難度大。通過勘察過程跟蹤、勘察成果分析、基樁承載力計算大數(shù)據(jù)統(tǒng)計、試驗樁工程、數(shù)值分析等，針對各建筑區(qū)域荷載和巖土工程條件，采取不同樁徑、樁長的樁基設(shè)計方案，并根據(jù)變形協(xié)調(diào)計算成果和施工相互影響分析，進行樁基平面布置設(shè)計。工程檢驗樁數(shù)據(jù)的分析驗證了樁基設(shè)計是合理的。
［關(guān)鍵詞］北京新機場； 樁基設(shè)計； 試驗樁； 旋挖鉆孔
中圖分類號：TU473-1文獻標(biāo)識碼：A文章編號：1002-848X(2017)18-0021-05
Design and verification of pile foundation of Terminal Area of Beijing New Airport
Fang Yunfei, Wang Yuan, Lu Pingzhen, Yang Yao, Song Shanshan
(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:The Terminal Area of Beijing New Airport consists of the central area of terminal building, corridor, boarding bridge, integrated service center, viaducts and other buildings. The structural characteristic, foundation forms, foundation bottom elevation, geological conditions and other factors are quite different, so the design complexity is high and the construction process is difficult. By the investigation process tracking, the analysis of the survey results, large data statistics for carrying capacity calculation of pile foundation, test pile engineering and numerical analysis, the design schemes of pile foundation with different pile diameters and pile lengths were adopted considering the load and geotechnical conditions of each building area, and the layout design of pile foundation was carried out based on the results of deformation coordination calculation and the analysis of construction interaction. The analysis of engineering test pile data verifies that the design of pile foundation is reasonable.
Keywords:Beijing New Airport; pile foundation design; test pile; rotary drilling
作者簡介：方云飛，碩士，高級工程師，注冊土木工程師（巖土），Email:fangyunfei@126.com。
