(1 gad 杰地设计.浙江绿城建筑设计有限公司,杭州 310007； 2 浙江工业大学土木工程学院，杭州 310014)

摘要: 温州鹿城广场超高层塔楼地处台风高发的深厚软土地区，采用框架-核心筒-外伸臂结构体系。塔楼桩基施工完成后建筑方案做了重大修改，在原有桩基础方案上进行补桩，综合评估后采用后补非嵌岩短桩与已施工嵌岩长桩协同受力的长短桩基础。由于存在桩距偏小、桩长差别悬殊、持力层差异大、土层分布复杂、上部荷载大等特殊情况，必须考虑上部结构-筏板-桩土的协同作用，并采用有限元方法进行分析。根据土工试验、试桩静载试验、试桩应力和变形等测试结果，拟合出土体本构模型及力学性质等计算所需参数。通过两个邻近超高层项目的有限元计算沉降与实测沉降对比，验证计算参数和分析方法的可靠性。将有限元分析与工程设计软件相结合，解决了塔楼长短桩基础分析设计难题。

关键词: 温州鹿城广场； 超高层塔楼； 长短桩基础； 上部结构-筏板-桩土协同作用； 群桩效应； 深厚软土地区

中图分类号:TU473 文献标志码:A 文章编号:1002-848X(2022)19-0066-08

DOI:10.19701 / j.jzjg.gad2219

Field observation and analysis of long-short-pile foundation with different bearing strata ofsuper high-rise tower of Wenzhou Lucheng Plaza

YAO Cheng1,LI Baozhong1,HU Damin1,CHENG Jun1,WANG Xin1,FANG Xunke1,PAN Xiaodong2

(1 gad.Zhejiang Greenton Architectural Design Co. ,Ltd. ,Hangzhou 310007,China； 2 College of Civil Engineering，Zhejiang University of Technology,Hangzhou 310014,China)

Abstract: Super high-rise tower of Wenzhou Lucheng Plaza is located in the typhoon-prone deep soft soil area and adoptsframe-corewall-outrigger structural system. After the completion of pile foundation construction,the building plan wasgreatly adjusted,and the pile filling was carried out on the original pile foundation scheme. After comprehensiveevaluation,a long-short pile foundation with post-compensation non-rock-socketed short piles and rock-socketed long pileswas used after comprehensive assessment. Due to the too small pile distance,large difference in pile length,difference inbearing strata,complex distribution of strata and large upper load,the superstructure-raft-pile-soil interaction must beconsidered and analyzed with the finite element method. According to the soil test,pile static load test,stress anddeformation measurement of piles,the soil constitutive model and mechanical properties were determined. According to thecomparison between the settlement calculated by finite element method and the measured settlement of two adjacent superhigh-rise buildings,the reliability of the calculation parameters and analytical method were verified. Combining finiteelement analysis and engineering design software,the analysis and design problems of long and short pile foundation ofsuper high-rise tower was solved.

Keywords: Wenzhou Lucheng Plaza； super high-rise tower； long-short-pile foundation； superstructure-raft-pile-soilinteraction； pile group effect； deep soft soil area

第一作者:摇铖，硕士，助理工程师，主要从事建筑结构设计研究工作，Email: yaoc233@ qq. com。

[引用本文] 摇铖，李保忠，胡达敏，等. 温州鹿城广场超高层塔楼不同持力层长短桩基础实测与分析[ J]. 建筑结构，2022，52(19):66-73，40. YAO Cheng，LI Baozhong，HU Damin，et al. Field observation and analysis of long-short-pile foundation with different bearing strata of super high-rise tower of Wenzhou Lucheng Plaza[ J]. Building Structure，2022，52(19):66-73，40.