Mixing Ratios and Cementing Mechanism of Similar Silty Mudstone Materials for Model Tests

Table 16

Range analysis of Poisson’s ratio.

Evaluation indexes	Poisson’s ratio
	Factor A (water content)	Factor B (barite powder ratio)	Factor C (gypsum mass)	Factor D (clay mineral ratio)
K1	0.26	0.32	0.23	0.27
K2	0.31	0.24	0.27	0.31
K3	0.22	0.25	0.29	0.28
K4	0.28	0.26	0.28	0.22
Range value R	0.10	0.08	0.06	0.09
Rank	1	3	4	2