Chainage

Uniaxial compressive strength (Avg.)

Rock Quality Designation (Avg.)

Spacing (Avg.)

Discontinuity Condition

Water Condition

RMR Value

Description

Rock Class

GSI

(RMR-5)

From

To

0+00

2+000

7

13

10

Persistence > 10 - 15 m, aperture > 15 mm,

slightly rough to rough, slightly to

moderately weathered

Approx. damp to completely dry

59

Fair

III

54

2+000

3+000

7

13

10

58

Fair

III

53

3+000

5+000

7

8

10

51

Fair

III

46

5+000

6+000

7

13

10

58

Fair

III

53

6+000

8+000

7

8

10

55

Fair

III

50

8+000

9+000

7

17

10

53

Fair

III

48

9+000

10+000

12

13

10

53

Fair

III

48

10+000

12+000

7

13

10

57

Fair

III

52

12+000

15+000

12

13

10

62

Good

II

57

15+000

20+000

7

13

8

57

Fair

III

52

20+000

22+000

4

13

15

51

Fair

III

46