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33
stabilitas
akibat
kelongsoran
daya
dukung
lokal
pada
kaki
timbunan,
serta
stabilitas
global/overall.
Untuk  menghitung
stabilitas geser, dapat digunakan persamaan :
                                             ( 2.19 )
                                                                ( 2.20 )
                                                                                    ( 2.21 )
                                                                                      
( 2.22 )
                                                                                                          
( 2.23 )
Dimana :
F
=
Gaya tahan terhadap stabilitas ggeser
P
=
Gaya dorong yang bekerja
Untuk menghitung stabilitas guling, dapat digunakan persamaan :
                                                                 ( 2.24 )
                                                                                            
( 2.25 )
                                                                           ( 2.26 )
Dimana :
M
ov
=
Momen guling
M
s
=
Momen stabilitas
Stabilitas akibat kelongsoran daya dukung lokal dihitung dengan :
(
2.27 )
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