岩土工程学报Issue(12)：2246-2254,9.DOI:10.11779/CJGE201512014
非均质土层的注浆扩散特性与加固力学行为研究
Diffusion characteristics and reinforcement mechanicsof grouting in non-homogeneous soil strata
摘要
Abstract
The soil layers are of non-uniform distribution and variability in the grouted region, and their parameters obey the distribution laws. Based on the random fractal theory and the characteristics of the related physical parameters, a random distribution model for the physical parameters of non homogeneous soil strata is established. The soil fractal mesh nodes are connected into triangular meshes based on the Delaunay method, using the triangle area coordinates interpolation method to achieve the soil dynamic parameters in the fractal grids to pass to the finite element mesh of grouting. Applying the fluid-solid coupling theory, considering dynamic change of physical parameters of soil and time-varying effect of slurry, the characteristics of dynamic change of the physical parameters are analyzed, and the diffusion scope and concretion shape of the slurry in non homogeneous soil strata are studied. The material parameters of irregular concretion are defined, and the characteristics of stress and deformation under loads after grouting are analyzed.关键词
非均质/动态参数/流固耦合/注浆/加固Key words
non-homogeneity/dynamic parameter/fluid-solid coupling/grouting/reinforcement分类
建筑与水利引用本文复制引用
雷进生,刘非,王乾峰,彭刚,姜袁..非均质土层的注浆扩散特性与加固力学行为研究[J].岩土工程学报,2015,(12):2246-2254,9.基金项目
国家自然科学基金项目（51279092，51278282）；湖北省自然科学基金项目（2013CFB218）；宜昌市科学技术研究与开发项目（A2011-302-5），三峡大学人才科研启动基金项目 （）
