Abstract：Ordinary silicate cement grout is one of the most commonly used grouting materials，of which transport and diffusion laws have become one of focus of geotechnical engineering fields. Diffusion laws of cement grout in planar fracture were researched systematically by model experiment and numerical simulation. Based on the theory of fluid dynamics，action mechanism of the grout diffusion patterns and pressure distribution laws influenced by movement of groundwater were analyzed. Through comparing the experimental and numerical simulation data，the transport and diffusion mechanism of cement grout in the hydrodynamic and hydrostatic conditions were studied. According to the study results，under the hydrodynamic condition，pressure of cement grout decreases rapidly from the grouting hole；and the pressure decreases extremely at the direction opposite to water flowing. At the same time，there are limits of diffusion space and distance opposite to the water flowing direction. Some suggestions were put forward to improve traditional grouting techniques.
刘 健，刘人太，张 霄，李术才. 水泥浆液裂隙注浆扩散规律模型试验与数值模拟[J]. 岩石力学与工程学报, 2012, 31(12): 2445-2452.
LIU Jian，LIU Rentai，ZHANG Xiao，LI Shucai. DIFFUSION LAW MODEL TEST AND NUMERICAL SIMULATION OF CEMENT FRACTURE GROUTING. , 2012, 31(12): 2445-2452.
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2012, Vol. 31 
