Development of Similar Materials for Liquid-Solid Coupling and Its Application in Water Outburst and Mud Outburst Model Test of Deep Tunnel

Table 2

Quality proportion of similar materials in different proportions.

Material ratio	Quality as a percentage (%)
	Mountain sand	Red clay	Cement	Water
12 : 0.15 : 0.7 : 1.3	84.81	1.06	4.94	9.19
12 : 0.35 : 0.7 : 1.3	83.62	2.44	4.88	9.06
12 : 0.55 : 0.7 : 1.3	82.47	3.78	4.81	8.94
12 : 0.75 : 0.7 : 1.3	81.36	5.08	4.75	8.81
12 : 0.95 : 0.7 : 1.3	80.27	6.35	4.68	8.70
12 : 1.15 : 0.7 : 1.3	79.21	7.59	4.62	8.58
12 : 1.35 : 0.7 : 1.3	78.18	8.79	4.56	8.47
12 : 1.55 : 0.7 : 1.3	77.17	9.97	4.50	8.36