国际工程中重型罐基承载力确定及地基沉降特性分析  

Analysis on bearing capacity and settlement characteristics of heavy tank foundation for international engineering

作　　者：吕连勋 马明哲 张少磊 朱繁 张衍林 Lyu Lianxun;Ma Mingzhe;Zhang Shaolei;Zhu Fan;Zhang Yanlin(Qingdao China Petroleum Geotechnical Engineering Co.,Ltd.,Qingdao 266071,China;East China Environmental&Geotechnical Branch,China Petroleum Engineering&Construction Corp.,Qingdao 266071,China;Beijing YJK Building Software Co.,Ltd.,Beijing 100010,China)

机构地区：[1]青岛中油岩土工程有限公司,山东青岛266071 [2]中国石油工程建设有限公司华东环境岩土工程分公司,山东青岛266071 [3]北京盈建科软件股份有限公司,北京100010

出　　处：《工程勘察》2024年第5期1-6,26,共7页Geotechnical Investigation & Surveying

基　　金：国家自然科学基金项目(51409154).

摘　　要：浅基础承载力及地基沉降评估是工程勘察设计的基本问题,从事国际岩土工程有关的建设项目,应充分了解国际主要浅基础评估方法、计算公式及设计流程。以伊拉克鲁迈拉油田重型储罐工程为案例背景,进行了系统完整的浅基础案例分析,分别基于抗剪强度准则与沉降控制准则确定了重型罐基的地基承载力,并结合数值分析技术分析了储罐基础的沉降变形性状。结果表明:浅基础承载力的确定应兼顾地基强度与变形要求,沉降是储罐基础承载力的主要限制因素;结构荷载对储罐基础中心点的沉降影响最为显著,地基沉降随着深度以及与储罐中心距离的增加而逐渐减小,基底沉降性状总体呈“碗状”形态;相邻罐体的荷载会对基础变形产生一定的叠加影响,两罐相向部位的沉降较相离方向略大。研究可为从事类似国际岩土工程项目时确定地基承载力及地基变形提供参考。The evaluation of shallow foundation bearing capacity and settlement is a basic matter of engineering investigation and design.In international geotechnical engineering construction projects,the main international shallow foundation evaluation methods,calculation formulas and design processes should be fully understand.Taking the heavy tank project of Rumaila Oilfield in Iraq as the case background,a systematic and complete shallow foundation analysis is carried out.The bearing capacity is determined based on the shear criterion and settlement criterion respectively,and the settlement deformation behaviors of the tank foundation are studied with numerical technique.The results show that the determination of foundation bearing capacity should take into account the requirements of soil strength and deformation,and the settlement is the main limiting factor of tank foundation.The load has the most significant effect on the settlement of the center point,and the settlement decreases gradually with the increase of depth and distance from the center of the tank.The load of adjacent tanks will have a certain superimposed influence on the deformation,and the settlement of the opposite part of two tanks is slightly larger than that of the separation direction.The study could provide the reference for the determination of foundation bearing capacity and deformation in similar international geotechnical engineering projects.

关 键 词：国际工程 浅基础 重型罐基 地基承载力 地基沉降 

分 类 号：TU470[建筑科学—结构工程]