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      Analisis Longsor Lahan Menggunakan Interpretasi Peta Terhadap Kontur dengan Teknologi Pesawat Nirawak di IPB Dramaga

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      Date
      2021
      Author
      Qinanda, Rahmat Genta
      Suharnoto, Yuli
      Rau, Maulana Ibrahim
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      Abstract
      Longsor lahan dapat disebabkan oleh curamnya lahan, rendahnya gaya tahan geser tanah, serta tingginya kandungan air pada tanah. Penelitian ini bertujuan untuk menganalisis longsor lahan berdasarkan peta topografi yang telah dibuat dengan metode fotogrametri teknologi drone. Penelitian ini menggunakan data primer foto udara. Foto udara yang didapatkan berjumlah 675 foto udara yang disatukan menjadi satu foto besar dan ditransformasi menjadi peta daerah Kampus IPB Dramaga. Dari intepretasi peta, elevasi lahan terendah adalah sebesar 182 meter dan elevasi lahan tertinggi sebesar 210 meter. Jenis tanah pada IPB Dramaga termasuk tanah latosol yang memiliki gaya tahan geser yang tingi terhadap longsor lahan. Kemiringan lahan pada area IPB Dramaga didominasi oleh dataran (0-0.76°) namun diantaranya terdapat kemiringan 54,12° (terjal) di beberapa lokasi yaitu antara daerah danau LSI dan lahan sekitarnya. Secara keseluruhan kerawanan longsor lahan pada area IPB Dramaga memiliki nilai yang kecil namun pada beberapa lokasi yaitu antara daerah danau LSI dan lahan sekitarnya memiliki nilai kerawanan yang tinggi. Alternatif pencegahan yang dapat dilakukan pada daerah tersebut antara lain memasang bronjong kawat.
       
      Landslides can be caused by steep land, low soil shear resistance, and high water content in the soil. This study aims to analyze landslides based on topographic maps that have been created by photogrammetry methods of drone technology. The study used primary aerial photography data. The aerial photos obtained amounted to 675 aerial photographs that will be combined into 1 large photo and transformed into a map of the campus of IPB Dramaga. From the map interpretation, the lowest land elevation is 182 meters and the highest land elevation is 210 meters. The types of soil in IPB Dramaga include latosol soil that has a shear resistance force that is resistant to landslides. The slope of land in the area of IPB Dramaga is dominated by plains (0-0.76°) but among them there is a slope of 54.12° (steep) in several locations, namely between the LSI lake area and the surrounding land. Overall landslide insecurity in the area of IPB Dramaga has a small value but in some locations that is between the LSI lake area and the surrounding land has a high insecurity value. Alternative prevention that can be done in the area, among others, installing bronjong wire.
       
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      http://repository.ipb.ac.id/handle/123456789/108633
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      • UT - Civil and Environmental Engineering [1042]

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      Indonesia DSpace Group 
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