Experimental Study on Grouting Effect and Mechanical Properties of the Rockfill Materials Grouted with SCM

Table 2

Strength parameters and Duncan-Chang model parameters of rockfill materials with average gradation before and after grouting reinforcement.

Test no	Gradation characteristics	Grouted or not	(σ1–σ3) max (kPa)				Linear indicator		Duncan-Chang model parameter
			Confining pressure 200 kPa	Confining pressure 300 kPa	Confining pressure 400 kPa	Confining pressure 600 kPa	c (kPa)	(°)	K	n
1	Average	Not grouted	781	1082	1362	1902	62.4	35.6	208	0.39
3	Average	Grouted	1527	1886	2186	2695	246.5	36.4	1506	0.27