PENENTUAN KADAR AIR SEBAGAI VARIABEL PENYEBAB LONGSOR PADA JALAN-LINTAS PROPINSI DI KECAMATAN SUMBERJAYA LAMPUNG BARAT

Syamsurijal Rasimeng, Andius Dasaputra, Alimuddin Alimuddin

Abstract


It has been done the research on the determination of land water content which has slided in a few province road sides at Sumberjaya, West Lampung. The land layers which have slided were dominated by clay-tufaan, and sand-tufaan caused by the water infiltration when it rained. The high level of the rain and difficulty in the surface topography in the area of research were the main sources of the land sliding in this area. The water content on the land which has slided was 32.745, which means that every 100 g of land contains 32.700 mm3 and has a great probability to slide again. While the province road at Wonosari Sumberjaya the level of water content was 32.72%-34.83% which is equaled to 32.720-34.830 mm3 water for every 100 g of land which has slided. In the rest area the level of water content which has slided was 29.84%-32.54% which is equaled to 29.840-32.540 mm3 water for every 100 g of land. At Sukajaya village (T4) there was 34.370 mm3 water for every 100 g of land or 34.37%.

 

Keywords: sldied land,water contentr, Sumberjaya.


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