Dynamic injection tests of dense slurry into fine rock fractures

Dynamic injection is the technology that efficiently injects with high dense slurry into small rock fractures. This technology may be expected for the improvement of fluidity and a penetration property of grout materials and the prevention of blockade phenomena. On this study, in order to make clear the effect of the dynamic injection method and the condition of pulsation pressure, injection tests with a fine model fractures and rheological tests under a proper vibration were made for high dense and viscosity grout materials. (author)