Stability Calculation Method of Slope Reinforced by Prestressed Anchor in Process of Excavation

Table 4

Different condition control parameters of sliding surface.

Working condition	Working; phase	Sliding surface search variables			Slip plane center coordinates and radius			Security; coefficient
		𝑋	𝑌	𝜃	𝑥𝑐	𝑦𝑐	𝑅
A	I	2.8053	4.0	63.718	−11.575	11.102	16.039	1.3136
	II	3.458	6.0	90	−3.4764	6	6.9344	1.344
	III	5.6106	8.0	68.098	−14.328	16.016	21.49	1.3222
	IV	5.0633	10.0	90	−7.3434	10	12.407	1.3424
	V	7.8159	12.0	69.327	−23.373	23.769	33.335	1.3684
B	I	3.1053	4.0	61.633	−10.456	11.322	15.412	1.6848
	II	3.258	6.0	90	−3.8959	6	7.1539	1.6456
	III	5.4106	8.0	72.964	−10.349	12.829	16.483	1.5981
	IV	6.5633	10.0	73.361	−13.449	15.981	20.887	1.45
	V	7.2159	12.0	74.49	−18.013	19.001	26.182	1.4209