Shear Strength Deterioration of Compacted Residual Soils under a Wind Turbine due to Drying-Wetting Cycles and Vibrations

Table 4

Variation of shear strength parameters after vibrations.

Compaction degree	Drying-wetting cycle, n	Cohesion, c (kPa)		Angle of internal friction, φ (°)
		Value	Reduction	Value	Reduction
0.98	0	29.6	−39.5%	29.3	−16.3%
	2	24.2	−34.7%	29.1	−14.2%
	4	21.2	−31.7%	28.3	−14.3%