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Report No.

Development of grout injection model to single fracture in considering inertia term and its application on parallel plate experiments

Kishida, Kiyoshi*; Kobayashi, Kenichiro*; Hosoda, Takashi*; Fujita, Tomo ; Kishi, Hirokazu; Kuzuha, Yuji; Nobuto, Jun*

In this research work, the grout injection model of single fracture, in which non-Newtonian fluid and the inertia term are considered, has been developed. Then, the grout injection experiments of single fracture have been conducted and the numerical simulations have been also carried out. As compared our proposed model with past one, the remarkable difference in grout penetration could not be clearly observed. On the other hand, the difference in pressure at aperture entrance and penetration velocity of the grout could be clearly observed. Our proposed model could show the practical behavior against previous model. Moreover, it can be also confirmed that viscosity of grout material through the material experiments are differed with that through the parallel plate injection experiments.



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