Clay Pressure Grouting Dynamic Numerical Simulation Study

Grouting is a popular method in dealing with groundwork. With its many advantages such as saving time efficiency and economy etc, this technology has been widely used in the fields of traffic irrigation works and architecture. Because research about grouting in clay must combine penetration hydro fracture and contpaction, it is much complicated than those in crack and gravel. At present most research gives priority to movement and diffuseness of serosity in crack and gravel, but research of grouting in clay isn't paid much attention to. Recent years as development of the computer and software, it becomes reality using numeric simulation to research grouting in clay. Using the software of PFC2D, the grouting in clay is lucubrated and such achievements are reached:(l) Grouting technologies in existence grouting material and serosity are studied and rational methods are put forward in choosing grouting technology and serosity. (2) Base on numeric simulation biax test a method is explored to simulate clay with PFC2D. (3) A method is explored to simulate grouting using PFC2D. (4) The relation between serosity pressure and diffuseness of grouting in clay with different initial stress is studied. (5) The stress transformation of clay is studied during grouting. (6) The stress distribution is studied under different serosity pressure. (7) The normal stresss and shear stresss at any section are studied.