长江科学院院报2018，Vol.35Issue(5)：79-84,6.DOI:10.11988/ckyyb.20170248
基于非均质地层模型的桩基注浆数值模拟
Numerical Simulation of Pile Foundation Grouting Based on Inhomogeneous Formation Model
摘要
Abstract
Post-grouting technique is an important means of improving the bearing capacity of pile foundation. Ac-cording to the field physical parameters of soil layers at a project,an inhomogeneous formation model is constructed via Diamond-Square algorithm based on the random fractal theory. In consideration of changes in soil porosity,per-meability and other parameters during grouting around pile foundation,the grouting process is simulated in associa-tion with the equation of fluid motion. Through analyzing the real-time dynamic changes of physical parameters of soil layers,the irregular distribution of slurry dispersion and stone body are obtained. The mechanical properties of soil and stone around the pile has improved significantly after grouting,indicating an obvious reinforcement effect. Numerical simulation of grouting based on inhomogeneous formation model could be used to guiding and evaluating the reinforcement process of pile grouting.关键词
桩基/注浆/随机分形理论/非均质地层/加固效果Key words
pile foundation/grouting/random fractal theory/inhomogeneous formation/reinforcement分类
建筑与水利引用本文复制引用
雷进生,鲁文浩,程爽,李美云,唐亚周,孟强..基于非均质地层模型的桩基注浆数值模拟[J].长江科学院院报,2018,35(5):79-84,6.基金项目
国家自然科学基金项目(51709155,51279092) （51709155,51279092）
湖北省自然科学基金项目(2013CFB218) （2013CFB218）
三峡大学人才科研启动基金项目(KJ2014B004) （KJ2014B004）
