Rock Doc Programs 04/19/2023 21:28:32

STRUCTURAL GEOLOGY

Three Point ProblemHighest elevation 4,000.00 metersIntermediate elevation 2,000.00 metersLowest elevation 1,000.00 meters

Map distance between highest and lowest elevation 4.8125 inches

Distance from highestelevation to point ofintermediate elevation 3.20833333 inches

Highest elevation X Y Intermediate elvation

Distance between highest and point of intermediate elevation3.208333 inches

Map distance between h * Point of intermediate elvation on line connecting highestand lowest elevation and lowest elevations

4.8125 inches

Z Lowest elevation

Map distance from highest elevation to lowest elevation

Map distance from highest elevation to intermediate elevation

Difference from highest elevation to intermediateelevation

Difference from highest to lowestelevation

Dip CalculationSide opposite (difference in elevation between the highest and intermediate points) 2,000.00 metersSide adjacent (map distance between line of strike and intermediate point) 1,020.83 meters

1.09885 RadiansDip 62.96 Degrees

2.00E+01 kb

1.00E+0127.00

h 17.939 kbt 4.045 kb

Calculation of Expected Angle of Faulting knowing the Angle of Internal Friction

33.00 °61.50 °

28.50 °61.50 °

Calculation of t and h for any value of q knowing s1 and s3

s1

s3

q in degrees

Angle of internal friction fExpected value of q

Expected angle between s1 and fault planeExpected angle between s3 and fault plane

20.000 kb

10.000 kb

q Shear Stress Normal Stress0 90 0.000 20.0005 85 0.868 19.92410 80 1.710 19.69815 75 2.500 19.33020 70 3.214 18.83025 65 3.830 18.21430 60 4.330 17.50035 55 4.698 16.71040 50 4.924 15.86845 45 5.000 15.00050 40 4.924 14.13255 35 4.698 13.29060 30 4.330 12.50065 25 3.830 11.78670 20 3.214 11.17075 15 2.500 10.67080 10 1.710 10.30285 5 0.868 10.07690 0 0.000 10.000

s1

s3

90 - q

0 10 20 30 40 50 60 70 80 900.000

5.000

10.000

15.000

20.000

25.000

INTERNAL STRESS AS FUNCTION OF ANGLE BETWEEN PLANE OF INTEREST AND s3 (Theta)

Shear Stress

Normal Stress

Theta

Str

ess

0 10 20 30 40 50 60 70 80 90 1000.000

5.000

10.000

15.000

20.000

25.000

INTERNAL STRESS AS FUNCTION OF ANGLE BETWEEN PLANE OF INTEREST AND s3

Normal Stress

Shear Stress

(90 - theta)

Str

ess

0 10 20 30 40 50 60 70 80 900.000

5.000

10.000

15.000

20.000

25.000

INTERNAL STRESS AS FUNCTION OF ANGLE BETWEEN PLANE OF INTEREST AND s3 (Theta)

Shear Stress

Normal Stress

Theta

Str

ess

0 10 20 30 40 50 60 70 80 90 1000.000

5.000

10.000

15.000

20.000

25.000

INTERNAL STRESS AS FUNCTION OF ANGLE BETWEEN PLANE OF INTEREST AND s3

Normal Stress

Shear Stress

(90 - theta)

Str

ess