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- W3109494003 abstract "Grouting is a commonly used technique in rock engineering to enhance the joint strength and improve the stability of surrounding rock. Grout penetration characteristic is controlled by grouting parameters and has a significant role on practice. In the study, a numerical manifold method (NMM) for grout penetration process simulation in fractured rock mass is firstly proposed. The fluid flow behaviour of the grout is assumed to be a Bingham fluid and control equations are established using discrete fracture network model. The global discretization equation, element sub-matrixes and NMM simulation algorithm for grouting are presented. Then, numerical tests for grouting process in a single fracture and a regular fracture network are conducted firstly to verify the proposed NMM grouting model by comparing with analytical solutions and experimental results. Furthermore, the effects of mesh size, fracture and slurry parameters on the grouting performance are systematically investigated using a random fracture network example. The numerical results indicate that the grouted zone and propagation depth decrease as the mesh size of numerical model and yield strength increases, while it increases as initial fracture aperture and grouting pressure increases." @default.
- W3109494003 created "2020-12-07" @default.
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- W3109494003 date "2021-02-01" @default.
- W3109494003 modified "2023-10-14" @default.
- W3109494003 title "Grout penetration process simulation and grouting parameters analysis in fractured rock mass using numerical manifold method" @default.
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- W3109494003 doi "https://doi.org/10.1016/j.enganabound.2020.11.008" @default.
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