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Treatment of wet nickel laterite ore stockpile embankment failure
Arif I.a, Prabudi S.a, Nolan D.b, Riza R.c, Asmar H.d, Bindle K.e, Superiadi A.f
a Dept. Mining Engineering, Bandung Institute of Technology, Indonesia
b PT. Golder, Indonesia
c PT. Golder, Indonesia
d PT. INCO, Indonesia
e PT. INCO, Indonesia
f PT. INCO, Indonesia
[vc_row][vc_column][vc_row_inner][vc_column_inner][vc_separator css=”.vc_custom_1624529070653{padding-top: 30px !important;padding-bottom: 30px !important;}”][/vc_column_inner][/vc_row_inner][vc_row_inner layout=”boxed”][vc_column_inner width=”3/4″ css=”.vc_custom_1624695412187{border-right-width: 1px !important;border-right-color: #dddddd !important;border-right-style: solid !important;border-radius: 1px !important;}”][vc_empty_space][megatron_heading title=”Abstract” size=”size-sm” text_align=”text-left”][vc_column_text]Early in 2004 an embankment failure occurred at the Saranga wet nickel laterite ore stockpile near Soroako, South Sulawesi. The embankment 10-13 m high, was sitting on a very soft silty clay deposit with a 15-20 kPa undrained shear strength (NSPT around 0-2). Failure occurred when the cut depth was about 7 m (critical height of the embankment is ~ 4.6 m). Reinforcement using geotextile & counterweight was proposed to increase embankment stability. The result of stability analyses with limit equilibrium and finite element methods showed that geogrid reinforcement increased the factor of safety by about 30% (FoS = 1.3) while treatment using counterweight increased factor of safety by 15% (FoS = 1.15).[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Author keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Counterweight,Embankment failure,Embankment stability,Factor of safety,Geogrid reinforcement,Limit equilibrium,Stability analysis,Undrained shear strength[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Indexed keywords” size=”size-sm” text_align=”text-left”][vc_column_text]Counterweight,Embankment failure,Geotextile,Reinforcement[/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”Funding details” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][vc_empty_space][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][vc_empty_space][megatron_heading title=”DOI” size=”size-sm” text_align=”text-left”][vc_column_text][/vc_column_text][/vc_column_inner][vc_column_inner width=”1/4″][vc_column_text]Widget Plumx[/vc_column_text][/vc_column_inner][/vc_row_inner][/vc_column][/vc_row][vc_row][vc_column][vc_separator css=”.vc_custom_1624528584150{padding-top: 25px !important;padding-bottom: 25px !important;}”][/vc_column][/vc_row]