REKONSTRUKSI LONGSORAN PADA LERENG BAGIAN BARAT DAN UTARA TIMUR TAMBANG TERBUKA BATU HIJAU, NUSA TENGGARA BARAT.

LAMPIRAN

Lampiran 1. Data window mapping pada lereng barat
67/40
72/36
73/62
77/64
75/77
84/102
70/33

67/42
43/37
61/44
45/30
66/35
72/114
52/251 74/117
60/40
68/119
47/39

53/33
25/31
44/38
*Dip / Dip Direction

79/65
17/34
70/42
70/45

Lampiran 2. Hasil back analysis lereng barat

C = 305,  = 55, tanpa pengaruh getaran (seismic load), FoS = 1.35

C = 280,  = 50, dengan pengaruh getaran (seismic load), FoS = 0.98

C = 290,  = 53, dengan pengaruh getaran (seismic load), FoS = 0.98

C = 325,  = 58, dengan pengaruh getaran (seismic load), FoS = 1.04


C = 345,  = 60, dengan pengaruh getaran (seismic load), FoS = 1.03

Lampiran 3. Hasil analisis kestabilan lereng barat permukaan aktual

C = 305,  = 55, tebal longsoran 4-5m, FoS = 0.50
Lampiran 4. Hasil analisis kestabilan lereng barat desain Fase 7

C = 518,  = 63, tanpa pengaruh getaran (seismic load), FoS = 2.16

Lampiran 5. Data window mapping pada lereng utara-timur
45/249
62/126
66/131
81/142
63/202
50/221
74/298
70/342
26/31
30/137

60/242

51/248 55/270
44/173 66/213
39/178 51/223
61/149 72/190
36/124 55/205
55/130 71/264
55/130 66/243
65/260 75/255
67/268 63/178
52/242 63/302
43/240
*Dip / Dip Direction

62/316
47/134
40/267
57/176
54/135

34/180
61/171
54/222
72/324
44/257

Lampiran 6. Hasil back analysis lereng utara-timur

C = 225,  = 35, Ru = 0.1, FoS = 1.10

C = 225,  = 35, Ru = 0, FoS = 1.20

C = 210,  = 30, Ru = 0.2, FoS = 1.02

C = 210,  = 30, Ru = 0.1, FoS = 1.03

C = 210,  = 30, Ru = 0, FoS = 1.12

C = 240,  = 40, Ru = 0.2, FoS = 1.09


C = 240,  = 40, Ru = 0.1, FoS = 1.22

C = 240,  = 40, Ru = 0, FoS = 1.28
Lampiran 7. Hasil analisis kestabilan lereng utara-timur permukaan aktual

C = 225,  = 35, Ru = 0.1, FoS = 1.34

C = 225,  = 35, Ru = 0, FoS = 1.45

C = 225,  = 35, Ru = 0.2, seismic load = 0.16, FoS = 1.01

C = 225,  = 35, Ru = 0.1, seismic load = 0.16, FoS = 1.09

C = 225,  = 35, Ru = 0, seismic load = 0.16, FoS = 1.17

Lampiran 8. Hasil analisis kestabilan lereng utara-timur desain Fase 7

C = 225,  = 35, Ru = 0.1, FoS = 1.84

C = 225,  = 35, Ru = 0, FoS = 2.04