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Rito Nasibu
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ANALISIS BENCANA LONGSOR DI DESA KALITLAGA KABUPATEN BANJARNEGARA PROVINSI JAWA TENGAH Nasibu, Rito
Sainstek Vol4, No 3, 2009
Publisher : Jurnal Sainstek

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Abstract

Banjarnegara is one of the sub-district in Central Java (a province in Indonesia) which is located in hazardous landslide area. There are some sub district which is located in high level hazardous landslide area: Karangkobar, Banjarnegara, Banjarmangu, Kalibening, and Madukara. Meanwhile, Kalitlaga, Purwonegoro, Pagentan, Susukan and Wanayasa is located in middle level hazardous landslide area. The kind of landslide in Kalitlaga is kind of curve debris flow which caused by sand stones movement on clay stones as slippery area. It makes the clay stones can not release the water instead it becomes slippery. The land used has to be planned by the society, so the plant which has been planted is not weight on the land. Societies awareness to do not construct the artificial recharge, because it can raise the ground water level and make the land unstable. A good drainase system has to be developed to reduce water absorption. The supplies of extensometer, a tool to measure landslide have to be increased and the government is expected to fund the supplying. Government and societies role are required in landslide disaster mitigation efforts in Kalitlaga Village, Pagetan, Banjarnegara Keywords: disaster area, landslide, extensometer.
ANALISIS KERUNTUHAN LERENG DAN SOLUSI PERBAIKANNYA PADA BANGUNAN SPBU SAMBIPITU - KABUPATEN WONOSARI Nasibu, Rito
Sainstek Vol5, No 1, 2010
Publisher : Sainstek

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The building of Sambipitu Gas Station had collapse after the heavy rain in November 2000 and operates recently during one month after the building had rebuilt up. Area condition was congeries land of the area by the side of slope. Based on the data analysis result, it was found that the main reason of the collapse was the unstable of land restraint wall. It was caused by the design of foundation dimension that not good and the construction that was low-grade. In addition, the descent of the congeries in the back of wall by water permeation from the surface and land-watercourse caused the unstable of land restraint wall. Therefore, it solidifies the congeries of the back of wall pair and effect to the fracture by the outside of wall that was piping. This piping flow the land water that collapses the yard and caused the difference of office building descent in foundation side of near yard that collapse. The solution that was suggest was improve the construction quality in field and attend to the method with priority scales of which work that has to be first in order it doesnt risk the following work, considering the gas station work consist of some works such as civil building, mechanic, electric and the utility of other supporting buildings. Keywords: landslide, piping, construction quality
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