远洋丽泽项目超高层建筑天然地基基础方案分析  

Analysis of super-rise building′s natural foundation scheme in Yuanyang Lize Project

作　　者：王媛[1] 阚敦莉[1] 徐斌[1] 孙宏伟[1] 李伟强[1] WANG Yuan;KAN Dunli;XU Bin;SUN Hongwei;LI Weiqiang(Beijing Institute of Architectural Design,Beijing 100045,China)

机构地区：[1]北京市建筑设计研究院有限公司,北京100045

出　　处：《建筑结构》2020年第20期44-48,共5页Building Structure

摘　　要：远洋丽泽E05,E06地块超高层建筑,地处北京丰台丽泽金融商务区,北侧紧邻丽泽路E01地块,东、北、西三侧紧邻丽泽商务区地下交通环廊;E05地块主塔楼建筑高度173.7m,E06地块主塔楼建筑高度191.66m,两个主塔楼之间设置裙房及纯地下室,地下室4层。本地块基础持力层为厚层密实第四纪卵砾石沉积岩,下卧层为"似岩非岩,似土非土"的第三纪软岩。丽泽商务区类似超高层建筑大多采用桩基础方案。基于地基承载力验证与计算、分层总和法及数值计算的沉降变形的综合分析以及类似超高层地基选型案例经验,远洋丽泽E05,E06地块在地基基础变刚度调平的基础上采用天然地基基础方案。通过分析沉降变形实测数据,证明了远洋丽泽E05,E06地块采用天然地基基础方案是合理可靠的,为丽泽商务区未来超高层建筑采用天然地基基础提供了有据可依的经验。The high-rise buildings of Yuanyang Lize E05 and E06 plots are located in the Lize Business District of Fengtai District, Beijing. The north side is adjacent to the E01 plot of Lize Road, and the east, north and west sides are adjacent to the underground ring corridor of Lize Business District. The building height of the main tower building of E05 plot is 173.7 m, and the building height of the main tower building of E06 plot is 191.66 m, and there are podiums and four floors of basements between the two main towers. The supporting layer of this plot is a thick layer of dense Quaternary gravel sedimentary rocks, and the underlying layer is a Tertiary soft rock of "rock-like and non-rock, soil-like and non-soil". Most of the super high-rise buildings in Lize Business District adopt the pile foundation scheme. Yuanyang Lize E05 and E06 plots adopt natural foundation scheme on the basis of foundation variable stiffness leveling based on the comprehensive analysis of foundation bearing capacity verification and calculation, layered summation method and numerical calculation settlement deformation, and similar super high-rise foundation selection case experience. Through the analysis of the measured data of settlement and deformation, it is proved that the scheme of natural foundation adopted in plot E05 and E06 of Yuanyang Lize is reasonable and reliable. It provides the experience for the future super high-rise buildings in Lize Business District to adopt natural foundation.

关 键 词：天然地基基础方案 超高层建筑 第四纪卵砾石层 地基承载力验算 沉降变形分析 

分 类 号：TU471[建筑科学—结构工程]