Study on the Design Method for the Deformation State Control of Pile-Anchor Structures in Deep Foundation Pits

Table 4

Strength parameters of the soil deformation state corresponding to different stress levels.

Soil layer	λi	10%	20%	40%	60%	80%	100%
Dense pebbles	(kPa)	0	0	0	0	0	0
	(°)	8.8	15.3	24.7	31.3	36.2	40
Moderately weathered mudstone	(kPa)	49.6	90.9	158	212.4	259	300
	(°)	6.1	11.1	18.9	24.7	29.3	33