摘要
在软土地区修建储罐群的过程中,不均匀沉降成为工程的主要控制因素之一。由于沉降问题受到储罐间距、孔隙水压力变化等动态因素的影响,使得问题的解决趋于复杂。运用FLAC3D数值模拟软件,建立三维非线性有限差分模型,综合各种变化因素的影响,研究软土地区不同净距的储罐群地基的变形及应力分布,模拟分析不同净距对储罐沉降和沉降差的影响。结果表明,在考虑地基土附加应力和超孔隙水压力共同作用时,储罐净距为0.6D(D为储罐直径)左右时比较合理。
In the process of constructing storage tank in soft soil area, the differential settlement is one of the main controlling factors. As the result of the influence of some dynamic factors such as tank spacing, pore water pressttre change, the issue of the settlement tends to complex. By using FLAC3D numerical simulation software, a three-dimensional nonlinear finite difference model was established. Synthesizing various factors, the deformation behavior and the stress distribution of the foundation of storage tank gToup with different clear distance in soft soil area were studied. The effects of different clear distances on the tank settlement and differential settlement were analyzed. The results show that in considering the additional stress of foundation soil and the excess pore water pressure together, it is reasonable when the tank spacing is 0. 6 times the tank diameter.
出处
《中国石油大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2009年第6期100-104,共5页
Journal of China University of Petroleum(Edition of Natural Science)
基金
国家自然科学基金项目(50874115)
关键词
储罐群
储罐间距
孔隙水压力
三维有限差分模型
storage tank group
tank spacing
pore water pressure
three-dimensional finite difference model
