廣州新電視塔基礎設計
高琳, 周定, 王云丹, 宋慶東
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廣州新電視塔基礎設計高琳, 周定, 王云丹, 宋慶東(廣州市設計院，廣州 510620)［摘要］廣州新電視塔總高610m，該電視塔外筒24根鋼管混凝土斜柱直接落在大直徑樁上，樁頂通過環(huán)梁連成整體；采用考慮樁、筏板與基巖共同作用的有限元分析方法，計算基礎沉降變形；通過在樁內進行的基巖側摩阻力試驗，驗證了規(guī)范的經驗取值，確定了樁基礎的抗拔承載力，較好地解決了大直徑、大抗拔力樁的檢測問題。［關鍵詞］廣州新電視塔；基礎設計；樁；筏板；基巖；環(huán)梁；基巖側摩阻力中圖分類號：TU473文獻標識碼：A文章編號：1002-848X(2011)01-0103-04Foundation design of Guangzhou New TV TowerGao Lin, Zhou Ding, Wang Yundan, Song Qingdong(Guangzhou Design Institute, Guangzhou 510620, China)Abstract:Guangzhou New TV Tower has a total height of 610 m. Twenty-four concrete-filled steel tube inclined columns of the TV Tower are planted on large diameter piles which are linked together through circular beams on the top. By using finite element analysis method, the interaction of piles，raft and bedrock was considered to calculate the deformation and subsidence of the foundation. By the test of the friction along the bedrock side in the pile, the empirical estimation of the existing specifications was verified, the calculation method of uplift bearing capacity was determined, and the problem of testing piles with large diameter and great uplift force was solved.Keywords:Guangzhou New TV Tower； foundation design； piles; raft; bedrock； circular beam； friction along the bedrock side作者簡介：高琳，高級工程師, Email：gaolingz@126.com。參考文獻［1］余永輝，楊漢倫，周定. 廣州新電視塔結構設計及難點分析［J］. 廣東土木與建筑，2010，17(4)：3-5.［2］廣州建設工程質量安全檢測中心.廣州新電視塔樁底基巖原位荷載試驗報告［R］. 2005.
