Table 3 Normalized equieffect forces and normalized hydrostatic pressure calculations.

From: Study on the dynamic response characteristics of lining structures in large-section tunnel blasting using JH-2 model analysis

\({\sigma }_{2}={\sigma }_{3}\)/(MPa)

\({\sigma }_{1}\)/(MPa)

P/(MPa)

\(\sigma\)/(MPa)

\({P}^{*}=P/{P}_{HEL}\)

\({\sigma }^{*}=\left(\sigma /{\sigma }_{HEL}\right)\)

-3.50

9.44

0.81

12.94

-0.00093

0.0012

0.00

113.50

37.83

113.50

0.02

0.04

25.00

347.03

132.34

322.03

0.05

0.11

50.00

491.05

197.02

441.05

0.08

0.15

100.00

713.32

304.44

613.32

0.12

0.20

150.00

896.86

398.95

746.86

0.16

0.25

200.00

1059.91

486.64

859.91

0.19

0.29

300.00

1350.11

650.04

1050.11

0.26

0.35

400.00

1610.78

803.59

1210.78

0.32

0.40

500.00

1852.51

950.84

1352.51

0.38

0.45

600.00

2080.73

1093.58

1480.73

0.44

0.49

700.00

2298.70

1232.90

1598.70

0.49

0.53

800.00

2508.54

1369.51

1708.54

0.55

0.57

900.00

2711.74

1503.91

1811.74

0.60

0.60

1000.00

2909.37

1636.46

1909.37

0.65

0.64

1100.00

3102.24

1767.41

2002.24

0.71

0.67

1200.00

3290.99

1897.00

2090.99

0.76

0.70