Experimental Study on the Influencing Factors of Treatment of Landfill Sludge Using Vacuum Preloading with the Fenton Reagent

Table 5

Shear strength of sludge.

Depth (cm)	The distance from the board (cm)	Strength of sludge (kPa)			Remodeled strength of sludge (kPa)			Sensitivity
		1	2	3	1	2	3	1	2	3
15	3	3.4	5.8	1.4	2.0	3.1	1.0	1.7	1.9	1.4
	13	1.0	1.4	1.1	0.6	0.8	1.0	1.0	1.7	1.0
	24	0.6	1.0	0.6	0.6	0.8	0.6	1.0	1.2	1.0
30	3	—	4.0	—	—	1.9	—	—	2.1	—
	13	—	1.0	—	—	0.7	—	—	1.4	—
	24	—	0.6	—	—	0.6	—	—	1.0	—

Note: the vane shear strength test is an in situ test of soil shear strength, which does not need to prepare remodeled sludge samples.