- 摘 要
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（1 華南理工大學建筑設(shè)計研究院有限公司， 廣州 510641；2 華南理工大學土木與交通學院， 廣州 510640）
［摘要］目前廣州周大福金融中心為廣州第一高樓，其基坑范圍廣、深度大，且周邊環(huán)境復雜，根據(jù)分段施工的要求，分為4個相對獨立的基坑進行開挖。根據(jù)地質(zhì)情況、周邊環(huán)境、支撐條件的不同，采用了內(nèi)撐、土釘墻、樁錨等支護方案。采用理正深基坑設(shè)計軟件進行了計算分析，同時依據(jù)有關(guān)規(guī)范制定了基坑監(jiān)測方案，對監(jiān)測結(jié)果進行了整理，并與理論計算值進行對比分析，結(jié)果表明本基坑支護合理、可行；此外，對基坑開挖過程中地鐵隧道的變形進行監(jiān)測，監(jiān)測結(jié)果表明，基坑的施工不影響地鐵運營與隧道安全。
［關(guān)鍵詞］廣州周大福金融中心； 深基坑； 支護結(jié)構(gòu)設(shè)計； 基坑監(jiān)測； 地鐵隧道變形
中圖分類號：TU973+.35文獻標識碼：A文章編號：1002-848X(2019)20-0104-07
Retaining and protection structural design and monitoring for foundation pit of Guangzhou CTF Finance Centre
Jiang Yi1, Chen Baixi2
(1 Architectural Design & Research Institute of SCUT Co., Ltd.， Guangzhou 510641, China; 2 School of Civil Engineering & Transportation, South China University of Technology, Guangzhou 510640, China)
Abstract:Guangzhou Chow Tai Fook (CTF) Financial Centre is the tallest building in Guangzhou, China. Its foundation pits are deep and have the large scope, and the surroundings around the foundation pit are complicated. Based on the requirements of the section construction, the foundation pits were divided into four individual parts to excavate. According to the difference of geological conditions, surroundings conditions and supporting conditions, different retaining and protection structures, such as strutted retaining structure, soil nailing wall and composite soil nailing wall, were applied. Lizheng deep excavations design software was used to conduct theoretical calculation and analysis. Meanwhile, the foundation pit monitoring scheme was determined by related standards. The monitoring results were analyzed and compared with theoretical results. Results show that the retaining and protection methods are reasonable. Besides, the deformation of the subway tunnel was also monitored. Monitoring results show that the construction of foundation pit does not affect the subway operation and tunnel safety.
Keywords:Guangzhou CTF Finance Centre; deep foundation pit; retaining and protection structural design; foundation pit monitoring; deformation of subway tunnel
作者簡介：江毅，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email: jiangyi@scut.edu.cn。
