摘要
首先,基于有限变形理论,采用点面接触模型模拟注浆过程中浆泡与土体之间的相互作用关系,通过拉格朗日方法引入这种相互作用关系,用约束变分原理建立适合模拟 CCG 注浆过程的控制方程;然后,根据在试验中观察到的现象建立注浆过程模型编制的有限元程序,动态模拟 CCG 注浆过程,为 CCG 注浆施工的优化设计奠定了基础.
On the basis of the finite deformation theory,the theoretical study and numerical simulation are made on compaction grouting.By using modified Lagrangian formula,the simulation is taken on viscous contact between mortar bubble and soil ground by point and surface contact model.A control formula is set up to adapt to compaction grouting by finite element method,and the compaction grouting model is established on the basis of testing observation.Finally,the finite element program is developed using Fortran language intended to dynamically simulate the injection process.
出处
《岩石力学与工程学报》
EI
CAS
CSCD
北大核心
2003年第z1期2322-2327,共6页
Chinese Journal of Rock Mechanics and Engineering
基金
上海市青年科技启明星资助项目(02QF14039)
关键词
数值分析
CCG注浆
有限变形
点面接触模型
numerical analysis
compaction grouting
finite deformation
point and surface contact model
