Seepage Grouting Mechanism for Foundations in Goaf Sites considering Diffusion Paths

Table 5

The calculated values, the test values and deviation analysis of diffusion radius.

Composite material	Equation (29); (mm)	Equation (28); (mm)	Equation (31); (mm)	Equation (38); (mm)	The test value (mm)
1	29.8	29.0	30.4	27.4	27.0
Deviation	10.4%	7.40%	12.6%	1.48%
2	22.5	25.0	26.2	23.7	29.0
Deviation	22.4%	13.8%	9.7%	18.3%