Strength Characteristics and Slope Stability of Expansive Soil from Pingdingshan, China

Table 11

The safety factor and radius at the slope height of 10 m.

Serial number	Horizontal projection (m)	Slope angle (°)	The most unfavorable center (m)	Radius (m)	Safety factor
1	10	45.0	(1.000, 18.000)	18.03	1.52
2	8	51.3	(0.000, 17.000)	17.00	1.38
3	7	55.0	(0.000, 16.000)	16.00	1.32
4	6	59.0	(−2.130, 17.000)	17.13	1.27
5	5	63.4	(−3.000, 17.000)	17.26	2.21
6	4	68.2	(−5.600, 8.000)	18.82	1.15
7	3	73.3	(−6.500, 17.000)	18.20	1.08
8	2	78.7	(−10.800, 20.000)	22.73	1.02
9	1	84.3	(−13.200, 20.000)	23.96	0.94
10	0	90.0	(−11.000, 17.000)	20.10	0.90