Seepage Grouting Mechanism for Foundations in Goaf Sites considering Diffusion Paths

Table 3

Design parameters of infiltration grouting.

Composite material	(mm)			(mm)	()
1	0.04	13.55	266.05	7.5
2	0.02	7.155	156.3	7.5

Note: is the viscosity of water at 20°C.