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新加坡某超高层建筑桩基设计与基础沉降分析

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超高层建筑对基础承载力和沉降控制要求很高,以新加坡某超高层建筑项目为例,研究了该建筑的桩基设计和其桩筏基础的沉降.首先根据地勘报告分析了项目所在区域的地质情况,并获取相应的地质参数,然后建立数值模型,根据数值计算结果对该超高层建筑桩筏基础的沉降进行了分析,并对桩基设计参数进行了复核.计算结果表明,该建筑物筏板基础最大沉降约21 mm,小于设计要求的40 mm;最大差异沉降1∶1 400,小于设计要求的1∶500;既有6根大直径桩承受荷载均小于工作荷载.因此,该建超高层筑桩筏基础设计满足规范要求.
Pile Foundation Design and Foundation Settlement Analysis of a Super High-rise Building in Singapore
Super high-rise buildings have high requirements on foundation bearing capacity and settlement control.This paper takes a super high-rise building project in Singapore as an example to study the pile foundation design of the building and the settlement of its piled raft foundation.This paper takes a high-rise building project in Singapore as an example.First,the geo-logical conditions of the area were analyzed based on the soil investigate report and the corresponding geological parameters were obtained.Then a numerical model was established,and the settlement of the piled raft foundation of the super high-rise building was analyzed based on the numerical calculation results,and the pile foundation design parameters were reviewed.The calculation results show that the maximum settlement of the raft foundation is about 21 mm,which is less than the design re-quirement of 40 mm;the maximum differential settlement is 1∶1 400,which is less than the design requirement of 1∶500;the existing six large-diameter piles bear a load less than the working load.Therefore,the design of the piled raft foundation of this super high-rise building meets the requirements of the specifications.

high-rise buildingssettlementNumeral CalculationsPile foundation design

于大伟、何礼

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中国港湾工程有限责任公司,北京 100027

高层建筑 沉降 数值计算 桩基设计

2024

土工基础
湖北省土木建筑学会,中国科学院武汉岩土力学研究所,武汉市土木建筑学会

土工基础

影响因子:0.238
ISSN:1004-3152
年,卷(期):2024.38(4)