Table 5 Comparison on the radial displacement of side wall and the circumferential stress of vault.

From: An new elastic–plastic analytical solution of circular tunnel under non-axisymmetric conditions

Methods

Location

Radial displacement of side wall (mm)

Circumferential stress of vault (MPa)

M1

M4

M5

M1

M4

M5

Deformation modulus (GPa)

250

243.57

243.50

276.50

19.88

18.55

17.48

500

126.80

121.75

138.30

19.88

18.55

17.48

1000

63.70

60.88

69.08

19.88

18.55

17.48

6000

10.53

10.15

11.53

19.88

18.55

17.48

Buried depths (m)

30

0.71

0.83

1.06

2.39

2.33

2.05

100

2.59

2.42

3.56

6.99

6.55

5.85

200

6.15

5.88

7.52

13.38

12.99

11.76

300

10.53

10.15

11.53

19.88

18.55

17.48

Lateral pressure coefficient

1.5

10.53

10.15

11.53

19.88

18.55

17.48

2.0

16.17

13.44

16.14

26.94

24.15

22.96

2.5

22.58

16.15

20.92

32.88

30.29

27.87

3.0

29.49

18.23

26.24

38.57

36.94

34.04