A Full-Scale Field Study on Bearing Characteristics of Cast-in-Place Piles with Different Hole-Forming Methods in Loess Area

Table 2

Properties of the soil in the test area.

Soil layer	Bottom depth (m)	Layer thickness (m)	Soil name	Colour	Soil distribution	fa0 (kPa)	qik (kPa)
	5.9	5.9	Loess	Tawny	Uniform soil	120	50
	8.6	2.7	Paleosol	Brownish red	Blocky structure	170	60
	23.0	14.4	Loess	Tawny	Uniform soil	240	55
	27.9	4.9	Paleosol	Brownish red	Aggregate structure	270	60
	35.3	7.4	Silty clay	Brownish red	Uniform soil	280	65

f_a0 is the bearing capacity of soil strata and q_ik is the friction resistance.