Boreholes

N˚

Sampling

Physical parameters

Mechanical parameters

Nature of the rock

Dry weight (kN/m³)

Methylene blue value (g/100 sol)

Porosity

n (%)

Compressive strength RC (MPa)

Modulus of deformation E (MPa)

SC01

Ngor-Almadies

ECH01

25.33

0.33

0.33

40

2586.7

Healthy basanite

ECH02

20.50

0.66

1.50

18

2283.1

Vesicular basanite

SC02

Ngor-Almadies

ECH03

22.42

0.70

0.85

16

1803.4

Vesicular altered basanite

ECH04

23.80

0.83

0.9

28

2632.3

Healthy basanite with few vesicles

SC03

Ngor-virage

ECH05

29.30

0.66

0.36

27

7699.1

Healthy vesicular basanite

ECH06

24.05

1.0

4.20

18

1777.9

Vesicular altered basanite

SC04

Yoff-Aéroport

ECH07

23.40

0.50

1.08

23.83

-

Healthy basanite

ECH08

20.45

0.33

1.46

17.59

-

Vesicular basanite

SC05

Yoff-Almadies

ECH09

25.85

0.32

0.82

32.88

-

Healthy vesicular basanite

ECH010

26.15

0.30

0.67

41.748

-

Healthy basanite

SC06

Ouakam-mamelles

ECH11

25.78

0.33

0.48

38

2999.8

Healthy basanite

ECH12

22.80

0.66

1.36

28

3261.2

Vesicular basanite

SC07

Ouakam-mamelles

ECH13

23.89

0.25

2.79

12.19

-

Very vesicular basanite

ECH14

24.42

1

1.0

15.58

-

Vesicular basanite

SC08

Mermoz-ouakam

ECH15

23.34

0.89

1.46

24.27

-

Low vesicular basanite

ECH16

23.65

0.53

2.05

25

2934.8

Low vesicular basanite

SC09

Mermoz-sacré cœur

ECH17

24.30

0.66

0.56

22.32

-

Low vesicular basanite

ECH18

26.05

0.50

0.66

34.14

-

Healthy basanite

SC10

Hôpital de Fann

ECH19

22.86

0.75

0.63

34

3405.9

Healthy basanite

ECH20

22.80

0.66

2.40

15

1477.6

Low vesicular basanite

SC11

UCAD, Soumbedioun

ECH21

25.16

0.48

0.50

30

3309.6

Healthy basanite

ECH22

25.00

0.83

1.36

25

2971.5

Low vesicular basanite

ECH23

22.15

1.10

1.02

16.15

-

Low vesicular basanite