VI

V

IV

III

II

I

Station No.

Parameters

344.40

214.40

265.28

300.82

269

279.90

UCS (MPA)

39.1

72.1

78.7

52.3

72.1

79.34

RQD (%)

18.6

25.8

13

21.5

19.4

13.3

Joint Spacing (cm)

>20

>20

>20

>20

>20

>20

Joint Persistence

Condition of discontinuities

1.5

2.1

2.6

2.25

2.6

3

Aperture (mm)

3

5

5

5

7

7

JRC

Clean

Hard fill < 5 mm

Hard fill < 5 mm

Soft fill < 5 mm

Soft fill < 5 mm

Hard fill < 5 mm

Infilling

W2

W2

W2-W3

W2

W2-W3

W3

Weathering

Dry

Dry

Dry

Dry

Dry

Dry

Ground Water

59

61

66

64

62

68

Total RMR

III

II

II

II

II

II

Class Number

Fair Rock

Good Rock

Good Rock

Good Rock

Good Rock

Good Rock

Rock Mass Quality

Andesite

Andesite

Andesite

Andesite

Andesite

Granite

Rock Type

North Abutment

South Abutment

Abutments