（中衡设计集团股份有限公司， 苏州 215021）

［摘要］在苏州现代传媒广场地下室结构基础设计中，采用变刚度调平方法，对塔楼和裙房基础进行优化设计，调整差异沉降；对塔楼桩基采用后注浆技术，提高单桩承载力，保证在有限的塔楼核心筒范围内布置合适的桩数，充分挖掘桩基承载的潜力。地下室外墙采用两墙合一技术，极大节约了土建成本，缩短了施工工期，取得良好的经济效益；局部紧邻地铁沿线处考虑双墙结构，避免引起地铁沿线的水土扰动，保证安全运行。加强主体结构和连续墙的连接构造，保证其与主体结构受力构件整体协调。

［关键词］苏州现代传媒广场； 超高层； 差异沉降； 灌注桩后注浆； 地下连续墙两墙合一

中图分类号：TU375， TU318文献标识码：A文章编号：1002-848X(2016)20-0072-06

Structural design on the basement of Modern Media Plaza in Suzhou

Fu Genzhou， Tan Lihua

(ARTS Group Co., Ltd.， Suzhou 215021， China)

Abstract:In the basement foundation design of  Modern Media Plaza in Suzhou, variable rigidity design method was adopted to optimize the foundation designs of the main tower building and podium to adjust differential settlement. The post grouting technique was adopted in tower foundation to improve the bearing capacity of the single pile, which could ensure the appropriate numbers of piles are arranged in the limited corewall areas to fully use the potential of the bearing capacity of pile foundation. Basement exterior wall adopted technology of  dual\|purpose diaphragm wall that could  work as retaining wall as well as outside wall of the basement, which greatly saved construction cost, shortened the construction period, and obtained good economic benefits. Double wall structure was adopted in areas closely adjacent to the metro line, to avoid disturbance of soil and water along the metro line to ensure safe operation. The connection structure between the main structure and continuous wall was strengthened, to ensure the overall coordination between the connection and main structural components.

Keywords:Modern Media Plaza in Suzhou; super high-rise building; differential settlement; post grouting for cast-in-situ pile; dual-purpose diaphragm wall 

作者简介：傅根洲，本科，高级工程师，Email：fugenzhou@artsgroup.cn。