Analysis of the Influence of the Distribution and Development of Soil Caves on the Stability of High-Voltage Transmission Tower Foundations

Table 2

Calculation results of the stress σ of a circular soil cave.

	Depth L (m)	θ = 0° (a)		θ = 30° (b)
		σ1/kPa	σ3/kPa	σ1/kPa	σ3/kPa
Theoretical results	6	174.91	−0.19	160.82	1.02
Numerical results		165.36	0.23	154.45	1.98
Theoretical results	6	θ = 60°(c)	θ = 90°(d)	σ1/kPa	σ3/kPa
		σ1/kPa	σ3/kPa
		152.06	15.86	98.18	−4.38
Numerical results		144.27	23.33	90.11	0.07