Handling Landslides with Type Cantilever (Case study: KM – 38 Semoi Sepaku Road North Penajam Paser Regency East Kalimantan)

The planning of a retaining wall on the KM – 38 Semoi Sepaku road section (STA 10+200) was carried out as a measure to deal with land that has the potential for landslides and the possibility of serious road damage. Handling landslides of cantilever type retaining walls aims to determine dimensions, calculate the working load, analyze stability control: sliding, overturning, soil bearing capacity and landslides, calculate reinforcement for the cantilever type and budget costs. Based on the results of the cantilever wall calculations, the top width is 0.5 m, the bottom width is 0.6 m, the wall length is 5.4 m, the foundation width is 4.2 m and the foundation height is 0.6 m. The stability values of SF sliding = 2.86, SF overturning = 3.33, SF bearing capacity = 8.42 and SF landslides = 1.751. Stem (main steel) D19 – 100 mm, stem (distribution steel) D16 – 150 mm, toe slab and heel slab (main steel) D19 – 100 mm, distribution steel D13 – 100 mm and anchor steel (dowel) D19 – 100 mm. The budget is Rp. 752,546,963.00,-