H. Yunita, B. Chairullah, R. Ambiya
Landslide disasters are often a threat to the smooth transportation and economy of the community. Meulaboh-Geumpang crossroad, located in the western coastal region of Aceh Province, is one of the landslides-prone areas. Thus, the appropriate solution is necessary for preventing and handling the landslides in this area. This study conducted slope reinforcement using segmental concrete blocks combined with geogrids. The planned vertical distance of the geogrid (Sv) was 0.2 m, 0.4 m, and 0.6 m, while the length of the geogrid plan was 1 meter outside the failure envelope of the slip surface at the existing condition. The slope of the planned slope angle for the installation of the concrete blocks was 45o, 60o, and 90o. The dimensions of segmental concrete blocks were 20 cm high, 30 cm wide, and 40 cm long. The safety factor, at the condition after overall reinforcement, reached an acceptable amount for handling, only at STA 84 + 280 with a slope of 90o. A reinforced concrete beam was not added to the foot of segmental concrete blocks because it did not meet the acceptable safety factor, which was 1.32. The result of this analysis is to provide useful information about the form of a landslide that occurred. It will also inform the best combination of concrete block wall reinforced with geogrid for the reinforcement on the slopes. Thus, relevant parties can use it for landslide handling in these locations. © 2021 Institute of Physics Publishing. All rights reserved.
Department of Civil Engineering, Syiah Kuala University, Banda Aceh, Indonesia; Graduated from Civil Engineering, Syiah Kuala University, Banda Aceh, Indonesia
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