Table 1 Laboratory soil test results.

From: Research on the construction method of high-speed railway tunnel in sandy loess and fine sand composite strata

Material

Water content/%

Natural density /kg/cm3

Dry density /kg/cm3

Specific gravity

Porosity/ %

Cohesion /kPa

Friction angle/°

Sandy loess

8.91

1.77

1.63

2.71

0.62

22.86

31.82

Fine sand

2.41

1.53

1.49

2.68

0.86

6.65

28.36

Back to article page