mektan fellenius

8/9/2019 mektan fellenius

1/24


2/24


3/24

Cos θ

8=Cos(1)

0.225

0.423

0.545

0.629

0.707

0.777

0.819

16= 7+15

47.406

46.856

33.387

27.861

12.295

11.169

10.840

189.814

c.a %#W Cos θ - u.a$tgφ


4/24


5/24


6/24


7/24

Trial k

Slice θ W a c b Cos θ Sin θ u u.b1 2 3 4 5 6 7= tan(5) 8 = Cos(1) 9 = Cos(1) 10 11 = 10.6

1 77 5.5335 3.1400 14.9 26.49 0.500 #REF! 0.224951 #REF! 0.000 0.000

2 65 10.7400 3.0090 15 27.29 0.500 #REF! 0.422618 #REF! 0.400 0.200

3 57 14.0070 2.0930 15 27.29 0.500 #REF! 0.544639 #REF! 1.800 0.900

4 51 16.3660 1.6570 15 27.29 0.500 #REF! 0.629320 #REF! 2.700 1.350

5 45 18.4770 1.4390 4.9 31.79 0.500 #REF! 0.707107 #REF! 3.200 1.600

6 39 15.4600 1.3950 4.9 31.79 0.500 #REF! 0.777146 #REF! 3.600 1.800

7 35 9.7120 2.2670 4.9 31.79 0.500 #REF! 0.819152 #REF! 3.700 1.850

8 0 0.0000 0.0000 0 0 0.575 #REF! 0.000000 #REF! 0.000 0.000

Diinginkan FS = 1,5 Maka:

SliceCos θ Sin θ

FS 8 9 7 14 = 8 +((9.7)/FS) 15 = (1)/13 16 = 15. [12 + (13.7)]

1 0.224951 #REF! #REF!

1.5

#REF! #REF! #REF!

2 0.422618 #REF! #REF! #REF! #REF! #REF!







∑ = #REF!

Safety Factor =∑ [W Sin θ]

Safety Factor = &'(")

Tabel Perhitungan Safety Factor engan !etoe *isho+

φ tan φ

tan φ Mθ = Cos θ + (tanφ.Sinθ)/FS 1,!θ 1/M θ . [c.b + (!".b#tanφ ]

∑ 1,!θ.[c.b %#W- u.b$tgφ]


8/24


9/24


10/24


11/24

W - u.b13 = 2-11

5.5335

10.5400

13.1070

15.0160

16.8770

13.6600

7.8620

0.0000


12/24


13/24


14/24


15/24


16/24


17/24


18/24


19/24


20/24


21/24


22/24


23/24

Trial ke = 1

Sliceθ W c b Cos θ Sin θ u u.b c.b W - u.b

1 2 3 4 5 6= tan(4) 7 = Cos(1) 8 = Sin(1) 9 10 = 9.5 11 = 3.5 12 = 2-10

1 70 2.160 1.4 16 10.287

0.3420.940

0.000 0 1.4 2.160

2 62 5.310 0.2 28 1 0.532 0.469 0.883 0.000 0 0.2 5.310

3 55 7.260 0.2 28 1 0.532 0.574 0.819 1.100 1.1 0.2 6.160

4 49 9.060 0.2 28 1 0.532 0.656 0.755 2.100 2.1 0.2 6.960

5 44 10.560 0.2 28 1 0.532 0.719 0.695 2.800 2.8 0.2 7.760

6 40 11.910 0.2 28 1 0.532 0.766 0.643 3.400 3.4 0.2 8.510

7 35 13.110 0.2 28 1 0.532 0.819 0.574 3.800 3.8 0.2 9.310

8 31 14.250 0.1 37 1 0.754 0.857 0.515 4.100 4.1 0.1 10.150

9 27 15.330 0.1 37 1 0.754 0.891 0.454 4.200 4.2 0.1 11.130

10 23 16.230 0.1 37 1 0.754 0.921 0.391 4.100 4.1 0.1 12.130

11 19 7.800 0.1 37 1 0.754 0.946 0.326 3.800 3.8 0.1 4.000

Diinginkan FS = 1,5

SliceCos θ Sin θ

FS 7 8 6 13 = 7 +((8.6)/FS) 14 = (1)/13 15 = 14. [11 + (12.6)]

1 0.342 0.940 0.287 1.5 0.5217 1.9170 3.8711

2 0.469 0.883 0.532 1.5 0.7825 1.2780 3.8640

3 0.574 0.819 0.532 1.5 0.8639 1.1575 4.0226

4 0.656 0.755 0.532 1.5 0.9236 1.0827 4.2234

5 0.719 0.695 0.532 1.5 0.9656 1.0356 4.4803

6 0.766 0.643 0.532 1.5 0.9939 1.0061 4.7539

7 0.819 0.574 0.532 1.5 1.0225 0.9780 5.0370

8 0.857 0.515 0.754 1.5 1.1159 0.8961 6.9437

9 0.891 0.454 0.754 1.5 1.1191 0.8936 7.5840

10 0.921 0.391 0.754 1.5 1.1168 0.8954 8.2742

11 0.946 0.326 0.754 1.5 1.1091 0.9017 2.8079

55.8622

∑=

Safety Factor =∑ [W Sin θ]

Safety Factor = ./07

Tabel Perhitungan Safety Factor engan !etoe *isho+

φ tan φ

tan φ Mθ = Cos θ + (tanφ.Sinθ)/FS 1,!θ 1/M θ . [c.b + (!".b#tanφ ]

!θ.[c.b %#W- u.b$tgφ]


24/24

W Sin θ

16 = %2&%8&

2.030

4.688

5.9476.838

7.336

7.656

7.520

7.339

6.960

6.342

2.539

65.1

mektan fellenius

Documents