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KESTABILAN LERENG

BATUAN(ROCK SLOPE STABILITY)1. LONGSORAN LERENG BATUAN TERKEKARKAN

(FRACTURED ROCK)

2. BIDANG GELINCIR ADALAH BIDANGDISKONTINUITAS

3. KECENDERUNGAN ARAH LONGSORAN HARUSDITENTUKAN DAHULU (DIPERLUKAN

STEREOGRAPHIC PROJECTION GREAT CIRCLE DANPOLES BIDANG-BIDANG DISKONTINUITAS)SEBAGAIDASAR ANALISIS KESTABILAN

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Jenis b! is"#n$in%i$&s(b! "e$i&"sin&'b%n!&n b&$%&n)

1. Bi&n! &is&n b&$%&n (sei'en*'e$&'#+,)

2. Bi&n! "e"&+ (#in$)

3. Bi&n! ses&+

. Bi&n! "e$i&"se&+&s&n

Pe+% i%"%+ %+%s/"e'i+in!&n-n0&

Di%"%+ !n "#'&s !e##!i(s$+i"e/i)

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A (.#s p U V.sin p)tan

F =

W.sin p + V.#s p

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BIDANG

DISKONTINUITAS

BIDANG DAN KUTUB (POLE)

STEREOGRAPHIC NET AND PROJECTION

LO HE4ISPHERE

R&!&n* 1566* s$+%$%+e !e##!0H#e" 7 B+&0

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Ke"&+ N 128#/38#938#/8#

Bi&n! e+en! :8#/;8#

S#& < !&'b&+&= b#" i&!+&'n0&&n s$e+e#ne$n0&. Ten$%"&n &+&=

#n!s#+&n b&i (direction of wedgefai!re)

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I%s$+&si #$$in! bi&n!&n #e

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