大型储液罐内外基础环墙抗不均匀沉降性能分析

Anti-uniform Settlement Performance Analysis of Inner and Outer Foundation Ring Walls of Large Liquid Storage Tanks

大型储液罐对地基沉降变形非常敏感,需要采用基础环梁来防止其对上部结构的危害,因此,基础环梁设计是大型储罐建设的重要一环。本文采用有限元软件对大型储罐-基础环梁-地基土层的共同作用进行了数值模拟,主要考察了大型储油罐基础环墙环向拉力的分布,探讨了影响环墙受力的主要因素。研究表明,垫层参数对环墙环向拉力的影响较大,压缩性低,抗剪强度大并经过压实处理的垫层材料对应的环墙环向拉力最小,环墙环向拉力随环墙半径的增大先近似线性增加而后略微减小。

Large-scale liquid storage tanks are very sensitive to foundation settlement deformation,and foundation ring beams are needed to prevent damage to the superstructure.Therefore,the design of foundation ring beams is an important part of large-scale storage tank construction.In this paper,finite element software is used to numerically simulate the joint action of large storage tank-foundation ring beam-foundation soil layer.factor.The research shows that the cushion parameters have a great influence on the hoop tension of the ring wall,the cushion material with low compressibility,high shear strength and compaction treatment corresponds to the smallest hoop tension of the hoop wall,and the hoop tension of the hoop wall increases with the The increase of the wall radius first increases approximately linearly and then decreases slightly.