Abstract:
This paper discusses the handling of slope sliding occured in the segment of
Bambangan – Aji kuning East Borneo. The slide occurs because of unprotected slopes and soil
types in the form of silt sandy. Treatment methods cantilever retaining walls was designed
inorder to handle the sliding. The cost of the this method was also calculated to obtain the
price.
Soil investigation and topography data were collected as a secondary data. The design
was commenced by preliminary design for this method. The next step was continued with the
calculation of safety factor of sliding, overtuning, and bearing capacity. For cantilever, the
design was included the calculation of reinforcement. Overal stability of slope was performed
using Plaxis Professional 8.2. The cost analysis was performed using Bina marga 2010
method.
By using the cantilever, the dimension of the pedestal are 3m wide, 0.5 m thick
matsand wall and 5m high. the safety factor of overal stability for both method was higher
than that of caltilever wall.. The cost of the reinforcement using cantilever Rp 489.373.268,.
