Hello Bazouzi,

I always successfuly used 'gen line'.  Example for an embankment dam, where after generating the contours I moved some nodes, marked or unmarked some of them, for the final purpose of building the mesh:

;Project Record Tree export (Example)

;Units: Imperial: foot-slug-second;Branch 1:grid.sav

config gwflow cppudm ats dynamic extra 40

grid 300,60

model elastic

gen -700,2353 -700,2653.3 800,2653.3 800,2353 i=1,301 j=1,61

gen line -700,2542 800,2542

gen line -351.3,2542 -300,2557

gen line -300,2557 -54,2637

gen line -54,2637 -32,2637

gen line -32,2637 103,2569

gen line 103,2569 158,2542

gen line -54,2637 -10,2653.3

gen line 30,2653.3 189.9,2600

gen line 189.9,2600 209.9,2600

gen line 209.9,2600 249.9,2580

gen line 249.9,2580 363.9,2542

gen line 158,2542 213,2522

gen line 363.9,2522 408.9,2542

gen line -10,2630 230,2538

ini x -300.01004 y 2556.9028 i 81 j 42

ini x -302.7671 y 2556.115 i 80 j 42

ini x -50.917995 y 2638.0977 i 130 j 59

ini x -47.44816 y 2637.0193 i 131 j 58

ini x -44.49411 y 2637.0193 i 132 j 58

ini x -48.198395 y 2633.268 i 131 j 57

ini x -48.995518 y 2628.3914 i 131 j 56

ini x -32.021454 y 2637.0188 i 134 j 58

ini x -32.77169 y 2633.7834 i 134 j 57

ini x -34.0846 y 2628.3442 i 134 j 56

ini x -29.864529 y 2635.9404 i 135 j 58

ini x -33.428143 y 2637.0188 i 134 j 58

ini x -31.458778 y 2636.972 i 135 j 58

ini x -35.116173 y 2637.0188 i 134 j 58

ini x -34.365936 y 2634.2993 i 134 j 57

ini x -28.1765 y 2635.1433 i 135 j 57

ini x 187.06966 y 2600.9805 i 179 j 51

ini x 209.9865 y 2599.9749 i 183 j 50

ini x 248.88431 y 2580.9814 i 191 j 47

ini x 251.09558 y 2579.5742 i 191 j 46

ini x 247.67816 y 2581.082 i 191 j 47

ini x 356.23163 y 2544.4956 i 212 j 39

ini x 360.1516 y 2543.39 i 213 j 39

ini x 364.07156 y 2541.9827 i 214 j 39

ini x 364.47363 y 2538.1633 i 214 j 38

ini x 360.0511 y 2543.2893 i 213 j 39

mark i 80 j 42

mark i 81 j 42

unmark i 77 j 39

unmark i 76 j 39

unmark i 75 j 39

unmark i 74 j 39

unmark i 73 j 39

mark i 77 j 39

mark i 76 j 39

mark i 75 j 39

mark i 74 j 39

mark i 73 j 39

mark i 70 78 j 40 42

unmark i 78 j 40

unmark i 77 j 40

unmark i 76 j 40

unmark i 75 j 40

unmark i 73 j 40

unmark i 74 j 40

unmark i 72 j 40

unmark i 71 j 40

unmark i 73 j 41

unmark i 71 j 41

unmark i 75 j 41

unmark i 77 j 41

mark i 129 136 j 57 61

mark i 130 j 57

unmark i 136 j 59

unmark i 136 j 60

unmark i 135 j 59

unmark i 135 j 60

unmark i 136 j 58

unmark i 134 j 60

unmark i 133 j 60

unmark i 132 j 60

unmark i 131 j 60

unmark i 130 j 60

unmark i 130 j 59

unmark i 132 j 59

unmark i 134 j 59

unmark i 131 134 j 56 57

unmark i 132 j 57

unmark i 130 j 57

mark i 183 j 50

mark i 191 j 47

mark i 191 j 46

mark i 179 j 51

mark i 207 224 j 39 42

unmark i 207 j 40

unmark i 208 j 40

unmark i 209 j 40

unmark i 210 j 40

unmark i 211 j 40

unmark i 209 j 41

unmark i 208 j 41

unmark i 207 j 41

unmark i 212 j 40

unmark i 210 j 41

unmark i 211 j 41

unmark i 212 j 41

unmark i 213 j 41

unmark i 214 j 41

unmark i 215 j 41

unmark i 216 j 41

unmark i 217 j 41

unmark i 218 j 41

unmark i 219 j 41

unmark i 220 j 41

unmark i 221 j 41

unmark i 222 j 41

unmark i 213 j 40

unmark i 214 j 40

unmark i 215 j 40

unmark i 216 j 40

unmark i 217 j 40

unmark i 218 j 40

unmark i 219 j 40

unmark i 220 j 40

unmark i 221 j 40

unmark i 220 j 38

unmark i 221 j 38

unmark i 222 j 40

unmark i 223 j 40

unmark i 223 j 41

mark i 184 213 j 35

mark i 220 j 38

mark i 221 j 38

model null region 53 50

group 'null' region 53 50

group delete 'null'

model null region 253 50

group 'null' region 253 50

group delete 'null'

model null i 70 77 j 41

group 'null' i 70 77 j 41

group delete 'null'

model null i 70 76 j 40

group 'null' i 70 76 j 40

group delete 'null'

model null i 70 71 j 39

group 'null' i 70 71 j 39

group delete 'null'

model null i 129 137 j 60

group 'null' i 129 137 j 60

group delete 'null'

model null i 129 134 j 59

group 'null' i 129 134 j 59

group delete 'null'

model null i 129 j 58

group 'null' i 129 j 58

group delete 'null'

model null i 206 223 j 41

group 'null' i 206 223 j 41

group delete 'null'

model null i 209 223 j 40

group 'null' i 209 223 j 40

group delete 'null'

model null i 212 223 j 39

group 'null' i 212 223 j 39

group delete 'null'

ini x 406.35834 y 2542.032 i 222 j 39

ini x 403.1462 y 2540.007 i 222 j 38

ini x 158.25916 y 2541.9644 i 173 j 39

ini x -339.40527 y 2541.9404 i 73 j 39

ini x -341.85898 y 2543.6274 i 72 j 40

ini x -338.0251 y 2545.4678 i 73 j 40

unmark i 187 j 38

unmark i 186 j 38

unmark i 185 j 38

ini x 220.0324 y 2538.2773 i 185 j 38

ini x 225.03323 y 2538.2773 i 186 j 38

ini x 230.03407 y 2538.194 i 187 j 38

ini x 216.61516 y 2542.1113 i 184 j 39

ini x 215.94838 y 2538.194 i 184 j 38

ini x 215.69833 y 2533.0266 i 184 j 37

ini x 212.78119 y 2544.1118 i 184 j 40

ini x -139.33176 y 2609.234 i 113 j 52

ini x -135.1346 y 2610.6055 i 114 j 52

ini x -132.35706 y 2611.497 i 114 j 53

save grid.sav

I hope this will help you.  Vlad

First create a table with the xy coordinates of points defining the slope profile, than use the fish function "gentabletop" in order to automatically modify a previously defined regular grid

I'll try; may be easier than my suggested procedure.

Generate table, yes. Line does not follow the profile exactly. With generate table command, coordinates of points on slope are exactly generated. Make sure that your mesh is sufficiently finer to accommodate even small profile changes along the slope.

example:

grid 100,80

gen -75,-75 -75,204.870 300,204.870 300,-75

Table 1 -75,-75 -75,0 0,0 22.406,42.140 27.900 42.140 46.217,76.590 87.010,79.590 90.440,96.590 95.440,96.590 100.050,116.590 104.550,116.590 111.830,136.590 116.330,136.590 119.550,150.540 140.380,150.540 146.620,164.570 151.126,164.570 157.370,178.600 161.870,178.600 171.702,195.630 193.900,195.600 195.529,204.870 300,204.870

gen table 1

thank you ,

for more explaining , i tried to determined the slope stability under surcharge loading, i have used two types of mesh (vertical and inclined).

i founded in the litterateur the inclined mesh affect on the failure surface. however, i used the vertical mesh, but i have more problems. for the determining the vector of velocity....i used 

Hi Messaoud,

I made two types of mesh before for different target. For example, if I consider slope stability under rainfall, I thinl it is better to use inclined mesh. And if I used vertical mesh for slope with a foundation.

I checked FoS, It was almost the same for 2 types

Dear Tran.

your answers is true. but, did you looked at the failure mechanism of slope (it's different, inclined mesh doesn't give us the acceptable failure mechanism).

best regards.