Estimating the Uplift Bearing Capacity of Belled Piers Adjacent to Sloping Ground by Numerical Modeling Based on Field Tests

Table 2

The results of triaxial compression tests on the rock samples in natural state.

Confining pressure (kPa)	Sample ID	Ultimate compressive strength (MPa)	Mean value (MPa)	Cohesion (MPa)	Internal friction angle (°)
100	A1	1.864	1.623
	B1	1.754
	C1	1.250
200	A2	2.235	2.023	0.407	29
	B2	1.961
	C2	1.874
300	A3	2.442	2.292
	B3	2.381
	C3	2.052