Table 8 Maximum flexural tensile stress at the bottom of the pavement slab under static aircraft load.

From: Mechanistic analysis of frost heave in airport runway subgrades in seasonal frost regions and pavement structural tolerance thresholds

Frost heave amount(mm)

Models

Surface layer thickness(cm)

Surface layer modulus (GPa)

Base layer thickness(cm)

Base layer modulus (MPa)

Flexural tensile stress (MPa)

10

A380-800

25

36

40

1500

3.73

30

3.63

35

3.461

40

3.341

40

33

3.21

34

3.244

35

3.269

37

3.424

36

25

3.376

30

3.361

35

3.354

40

1300

3.353

1400

3.346

1600

3.335

1700

3.331

B767-300ER

1600

1.922

B747-400

2.828

15

B767-300ER

2.072

B747-400

3.57

A380-800

4.097

20

B767-300ER

2.265

B747-400

4.291

A380-800

4.937

25

B767-300ER

2.484

B747-400

4.961

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