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Tugas Mekanikan Tanah I REDHA ARIMA RM
Tugas IV 1310015211116
=TUGAS =
SOAL 1
No
Diameter
Massa Tanah % Tanah
% Tanah LolosAyakan Tertahan Tertahan
Pada Tiap
USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan
(mm) (gr) (gr) (gr)
.(1) .(2) .(3) .(4) .(5)
4 4.75 0 0 100
10 2 21.6 4.8 95.2
20 0.85 49.5 11 84.2
40 0.425 102.6 22.8 61.4
60 0.25 89.1 19.8 41.6
100 0.15 95.6 21.24 20.36
200 0.075 60.4 13.42 6.93
pan 31.2 6.93 0
Total 450
DISTRIBUSI BUTIRAN
100
90
80
70
Lolos
D
60 60
50
%
40
D
30 30
20
D
10 10
0.09 0.19 0.4
0
0.01 0.1 1 10
Diameter Butiran (mm)
Dia
(mm) Cu Cc
D10 0.09 4.4 1.00
D30 0.19
D60 0.4
SOAL 2
Diketahui : D10 = 0.1 mm
D30 = 0.41 mm
D60 = 0.62 mm
Ditanya : Koefisien Keseragaman (CU) dan Koefisien Gradasi (CC)
Jawab:
C =
D
60
= 0.62 = 6.2
U
D
10 0.1
C
C =
(D )
2
=
(0.41) 2
= 2.711
30
D
60
xD
10 0.62x0.1
SOAL 3
Diketahui : D10 = 0.082 mm
D30 = 0.29 mm
D60 = 0.51 mm
Ditanya : Koefisien Keseragaman (CU) dan Koefisien Gradasi (CC)
Jawab:
CU =
D60
=
0.51
= 6.222
D10 0.082
CC =
(D )
2
(0.29) 2
= 2.01130
=
0.51x0.82
D
60
xD
10
SOAL 4
No
Diameter
Massa Tanah % Tanah
% Tanah LolosAyakan Tertahan Tertahan
Pada Tiap
USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan
(mm) (gr) (gr) (gr)
.(1) .(2) .(3) .(4) .(5)
4 4.75 0 0 100
6 3.35 30 6 94
10 2 48.7 9.74 84.26
20 0.85 127.3 25.46 58.8
40 0.425 96.8 19.36 39.44
60 0.25 76.6 15.32 24.12
100 0.15 55.2 11.04 13.08
200 0.075 43.4 8.68 4.40
pan 22 4.40 0.00
Total 500
DISTRIBUSI BUTIRAN
100
90
80
70
Lolos
D
60 60
50
%
40
D
30 30
20
D
10 10
0.01 0.1 0.125
0.31 0 0.95
101
Diameter Butiran (mm)
Dia
Cu Cc(mm)
D10 0.125 7.6 0.81
D30 0.31
D60 0.95
SOAL 5
No
Diameter
Massa Tanah % Tanah
% Tanah LolosAyakan Tertahan Tertahan
Pada Tiap
USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan
(mm) (gr) (gr) (gr)
.(1) .(2) .(3) .(4) .(5)
4 4.75 0 0 100
6 3.35 0 0 100
10 2 0 0 100
20 0.85 9.1 1.82 98.18
40 0.425 249.4 49.88 48.3
60 0.25 179.8 35.96 12.34
100 0.15 22.7 4.54 7.80
200 0.075 15.5 3.10 4.70
pan 23.5 4.70 0.00
Total 500
DISTRIBUSI BUTIRAN
100
90
80
70
Lolos
D
60 60
50
%
40
D
30 30
20
D
10 10
0.01
0.185 0.325 0.5 0
100.1 1
Diameter Butiran (mm)
Dia
Cu Cc(mm)
D10 0.185 2.7 1.14
D30 0.325
D60 0.5
SOAL 6
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 92.1
60 0.25 85.8
0.15 77.3
200 0.075 62
0.04 50.80
0.02 41.00
0.01 34.30
0.006 29.00
0.002 23.00
DISTRIBUSI UKURAN BUTIRAN SISTEM MIT
100 0.002 0.06 2
90
80
Lolos
70
60
50 58%
%
40
30
20 23%
10
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel )
Persentase Butiran
Menurut Sistem MIT
Jenis Tanah %
Gravel 0
Sand 42
Silt 35
Clay 23
Total 100
SOAL 7
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 92.1
60 0.25 85.8
0.15 77.3
200 0.075 62
0.04 50.80
0.02 41.00
0.01 34.30
0.006 29.00
0.002 23.00
DISTRIBUSI UKURAN BUTIRAN SISTEM USDA
100 0.00 0.05 2
90
80
Lolos
70
60
50 55
%
40
30
20
2310
0
1 Ukuran Butiran (mm) 100.001 0.01 0.1
Clay Lanau (Silt ) Pasir Kerikil(Gravel )
Persentase Butiran
Menurut Sistem USDA
Jenis Tanah %
Gravel 0
Sand 45
Silt 32
Clay 23
Total 100
SOAL 8
No
Diameter % Tanah LolosAyakan
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 92.1
60 0.25 85.8
0.15 77.3
200 0.075 62
0.04 50.80
0.02 41.00
0.01 34.30
0.006 29.00
0.002 23.00
DISTRIBUSI UKURAN BUTIRAN SISTEM AASTHO
100
0.00 0.07 2
90
80
Lolos
70
60 62%
50
%
40
30
20
23%
10
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel )
Persentase Butiran
Menurut Sistem
AASTHO
Jenis Tanah %
Gravel 0
Sand 38
Silt 39
Clay 23
Total 100
SOAL 9
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 100
60 0.25 94.1
0.15 79.3
200 0.075 34.1
0.04 28.00
0.02 25.20
0.01 21.80
0.006 18.90
0.002 14.00
DISTRIBUSI UKURAN BUTIRAN SISTEM MIT
100 0.002 0.06 2
90
80
Lolos
70
60
50
%
40
30 32%
20
10 14%
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel )
Persentase Butiran
Menurut Sistem MIT
Jenis Tanah %
Gravel 0
Sand 68
Silt 18
Clay 14
Total 100
SOAL 10
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 100
60 0.25 94.1
0.15 79.3
200 0.075 34.1
0.04 28.00
0.02 25.20
0.01 21.80
0.006 18.90
0.002 14.00
0.002
DISTRIBUSI UKURAN BUTIRAN SISTEM USDA
100 0.05 2
90
80
Lolos
70
60
50
%
40
30
20 29
10 14%
0
1 Ukuran Butiran (mm) 100.001 0.01 0.1
Clay Lanau (Silt ) Pasir Kerikil(Gravel )
Persentase Butiran Menurut Sistem USDA
Jenis Tanah %
Gravel 0
Sand 71
Silt 15
Clay 14
Total 100
SOAL 11
No
Ayakan Diameter % Tanah Lolos
USA ayakan Pada Tiap Ayakan
(mm) (gr)
.(1) .(2) .(3)
20 0.85 100
40 0.425 100
60 0.25 94.1
0.15 79.3
200 0.075 34.1
0.04 28.00
0.02 25.20
0.01 21.80
0.006 18.90
0.002 14.00
0.002
DISTRIBUSI UKURAN BUTIRAN SISTEM AASTHO
100 0.07 2
90
80
Lolos
70
60
50
%
40
30 34.1
20
10 14%
0 Ukuran Butiran (mm)
0.001 0.01 0.1 1 10
Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel )
Persentase Butiran Menurut Sistem AASTHO
Jenis Tanah %
Gravel 0
Sand 65.9
Silt 20.1
Clay 14
Total 100
SOAL 12
Diket: Uji hydrometer
GS = 2.70
T = 22° C L
= 11.9 cm
t. = 30 menit
Ditanya : Diameter ukuran butir terkecil
Jawab: Berdasarkan Tabel 1.7 (hal 20) didapat nilai K = 0.01199
D = K L = 0.01199 11.9 = 0.001887 mm
t 30
Tugas Mekanika Tanah I ke IV

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Tugas Mekanika Tanah I ke IV

  • 1. Tugas Mekanikan Tanah I REDHA ARIMA RM Tugas IV 1310015211116 =TUGAS = SOAL 1 No Diameter Massa Tanah % Tanah % Tanah LolosAyakan Tertahan Tertahan Pada Tiap USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan (mm) (gr) (gr) (gr) .(1) .(2) .(3) .(4) .(5) 4 4.75 0 0 100 10 2 21.6 4.8 95.2 20 0.85 49.5 11 84.2 40 0.425 102.6 22.8 61.4 60 0.25 89.1 19.8 41.6 100 0.15 95.6 21.24 20.36 200 0.075 60.4 13.42 6.93 pan 31.2 6.93 0 Total 450 DISTRIBUSI BUTIRAN 100 90 80 70 Lolos D 60 60 50 % 40 D 30 30 20 D 10 10 0.09 0.19 0.4 0 0.01 0.1 1 10 Diameter Butiran (mm) Dia (mm) Cu Cc D10 0.09 4.4 1.00 D30 0.19 D60 0.4
  • 2.
  • 3. SOAL 2 Diketahui : D10 = 0.1 mm D30 = 0.41 mm D60 = 0.62 mm Ditanya : Koefisien Keseragaman (CU) dan Koefisien Gradasi (CC) Jawab: C = D 60 = 0.62 = 6.2 U D 10 0.1 C C = (D ) 2 = (0.41) 2 = 2.711 30 D 60 xD 10 0.62x0.1 SOAL 3 Diketahui : D10 = 0.082 mm D30 = 0.29 mm D60 = 0.51 mm Ditanya : Koefisien Keseragaman (CU) dan Koefisien Gradasi (CC) Jawab: CU = D60 = 0.51 = 6.222 D10 0.082 CC = (D ) 2 (0.29) 2 = 2.01130 = 0.51x0.82 D 60 xD 10
  • 4. SOAL 4 No Diameter Massa Tanah % Tanah % Tanah LolosAyakan Tertahan Tertahan Pada Tiap USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan (mm) (gr) (gr) (gr) .(1) .(2) .(3) .(4) .(5) 4 4.75 0 0 100 6 3.35 30 6 94 10 2 48.7 9.74 84.26 20 0.85 127.3 25.46 58.8 40 0.425 96.8 19.36 39.44 60 0.25 76.6 15.32 24.12 100 0.15 55.2 11.04 13.08 200 0.075 43.4 8.68 4.40 pan 22 4.40 0.00 Total 500 DISTRIBUSI BUTIRAN 100 90 80 70 Lolos D 60 60 50 % 40 D 30 30 20 D 10 10 0.01 0.1 0.125 0.31 0 0.95 101 Diameter Butiran (mm) Dia Cu Cc(mm) D10 0.125 7.6 0.81 D30 0.31 D60 0.95
  • 5. SOAL 5 No Diameter Massa Tanah % Tanah % Tanah LolosAyakan Tertahan Tertahan Pada Tiap USA ayakan Pada Tiap Ayakan Ayakan Pada Tiap Ayakan (mm) (gr) (gr) (gr) .(1) .(2) .(3) .(4) .(5) 4 4.75 0 0 100 6 3.35 0 0 100 10 2 0 0 100 20 0.85 9.1 1.82 98.18 40 0.425 249.4 49.88 48.3 60 0.25 179.8 35.96 12.34 100 0.15 22.7 4.54 7.80 200 0.075 15.5 3.10 4.70 pan 23.5 4.70 0.00 Total 500 DISTRIBUSI BUTIRAN 100 90 80 70 Lolos D 60 60 50 % 40 D 30 30 20 D 10 10 0.01 0.185 0.325 0.5 0 100.1 1 Diameter Butiran (mm) Dia Cu Cc(mm) D10 0.185 2.7 1.14 D30 0.325 D60 0.5
  • 6. SOAL 6 No Ayakan Diameter % Tanah Lolos USA ayakan Pada Tiap Ayakan (mm) (gr) .(1) .(2) .(3) 20 0.85 100 40 0.425 92.1 60 0.25 85.8 0.15 77.3 200 0.075 62 0.04 50.80 0.02 41.00 0.01 34.30 0.006 29.00 0.002 23.00 DISTRIBUSI UKURAN BUTIRAN SISTEM MIT 100 0.002 0.06 2 90 80 Lolos 70 60 50 58% % 40 30 20 23% 10 0 Ukuran Butiran (mm) 0.001 0.01 0.1 1 10 Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel ) Persentase Butiran Menurut Sistem MIT Jenis Tanah % Gravel 0 Sand 42 Silt 35 Clay 23 Total 100
  • 7. SOAL 7 No Ayakan Diameter % Tanah Lolos USA ayakan Pada Tiap Ayakan (mm) (gr) .(1) .(2) .(3) 20 0.85 100 40 0.425 92.1 60 0.25 85.8 0.15 77.3 200 0.075 62 0.04 50.80 0.02 41.00 0.01 34.30 0.006 29.00 0.002 23.00 DISTRIBUSI UKURAN BUTIRAN SISTEM USDA 100 0.00 0.05 2 90 80 Lolos 70 60 50 55 % 40 30 20 2310 0 1 Ukuran Butiran (mm) 100.001 0.01 0.1 Clay Lanau (Silt ) Pasir Kerikil(Gravel ) Persentase Butiran Menurut Sistem USDA Jenis Tanah % Gravel 0 Sand 45 Silt 32 Clay 23 Total 100
  • 8. SOAL 8 No Diameter % Tanah LolosAyakan USA ayakan Pada Tiap Ayakan (mm) (gr) .(1) .(2) .(3) 20 0.85 100 40 0.425 92.1 60 0.25 85.8 0.15 77.3 200 0.075 62 0.04 50.80 0.02 41.00 0.01 34.30 0.006 29.00 0.002 23.00 DISTRIBUSI UKURAN BUTIRAN SISTEM AASTHO 100 0.00 0.07 2 90 80 Lolos 70 60 62% 50 % 40 30 20 23% 10 0 Ukuran Butiran (mm) 0.001 0.01 0.1 1 10 Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel ) Persentase Butiran Menurut Sistem AASTHO Jenis Tanah % Gravel 0 Sand 38 Silt 39 Clay 23 Total 100
  • 9. SOAL 9 No Ayakan Diameter % Tanah Lolos USA ayakan Pada Tiap Ayakan (mm) (gr) .(1) .(2) .(3) 20 0.85 100 40 0.425 100 60 0.25 94.1 0.15 79.3 200 0.075 34.1 0.04 28.00 0.02 25.20 0.01 21.80 0.006 18.90 0.002 14.00 DISTRIBUSI UKURAN BUTIRAN SISTEM MIT 100 0.002 0.06 2 90 80 Lolos 70 60 50 % 40 30 32% 20 10 14% 0 Ukuran Butiran (mm) 0.001 0.01 0.1 1 10 Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel ) Persentase Butiran Menurut Sistem MIT Jenis Tanah % Gravel 0 Sand 68 Silt 18 Clay 14 Total 100
  • 10. SOAL 10 No Ayakan Diameter % Tanah Lolos USA ayakan Pada Tiap Ayakan (mm) (gr) .(1) .(2) .(3) 20 0.85 100 40 0.425 100 60 0.25 94.1 0.15 79.3 200 0.075 34.1 0.04 28.00 0.02 25.20 0.01 21.80 0.006 18.90 0.002 14.00 0.002 DISTRIBUSI UKURAN BUTIRAN SISTEM USDA 100 0.05 2 90 80 Lolos 70 60 50 % 40 30 20 29 10 14% 0 1 Ukuran Butiran (mm) 100.001 0.01 0.1 Clay Lanau (Silt ) Pasir Kerikil(Gravel ) Persentase Butiran Menurut Sistem USDA Jenis Tanah % Gravel 0 Sand 71 Silt 15 Clay 14 Total 100
  • 11. SOAL 11 No Ayakan Diameter % Tanah Lolos USA ayakan Pada Tiap Ayakan (mm) (gr) .(1) .(2) .(3) 20 0.85 100 40 0.425 100 60 0.25 94.1 0.15 79.3 200 0.075 34.1 0.04 28.00 0.02 25.20 0.01 21.80 0.006 18.90 0.002 14.00 0.002 DISTRIBUSI UKURAN BUTIRAN SISTEM AASTHO 100 0.07 2 90 80 Lolos 70 60 50 % 40 30 34.1 20 10 14% 0 Ukuran Butiran (mm) 0.001 0.01 0.1 1 10 Clay Lanau (Silt ) Pasir (Sand ) Kerikil(Gravel ) Persentase Butiran Menurut Sistem AASTHO Jenis Tanah % Gravel 0 Sand 65.9 Silt 20.1 Clay 14 Total 100
  • 12. SOAL 12 Diket: Uji hydrometer GS = 2.70 T = 22° C L = 11.9 cm t. = 30 menit Ditanya : Diameter ukuran butir terkecil Jawab: Berdasarkan Tabel 1.7 (hal 20) didapat nilai K = 0.01199 D = K L = 0.01199 11.9 = 0.001887 mm t 30