Effect of Prior Cyclic Loading on Triaxial Compression Strength of Sliding Zone Soil of the Huangtupo Landslide

Table 3

Results of monotonic and multistage loading tests for 100 cycles.

Test category	Cycle period (T) (s)	Cohesion intercept (c) (kPa)	Effective cohesion intercept (c’) (kPa)	Internal friction angle ( ) (º)	Effective internal friction angle (‘) (º)
Monotonic loading test	—	99.03	89.20	2.96	1.68
Cyclic loading test	90	85.23	82.60	3.98	1.03
	60	80.70	78.35	4.02	1.32
	10	77.43	69.50	3.01	1.61