Sugeng Rahardjo, SR and Eko Teguh Paripurno, ET and Joko Hartadi, JH and Oktavia Dewi Alfiani, ODA and Megasari Widyastuti, MW and Muflichatul Mardziah, MM (2017) THE MOVEMENT OF LANDSLIDE BASED ON GEOLOGY AND GEODETIC DATA IN SUWIDAK AREA, BANJARNEGARA REGENCY, CENTRAL JAVA. In: Prosiding Seminar Nasional Tahun ke-3 LPPM UPN Veteran Yogyakarta.
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Abstract
Landslide disaster is one of the most occur disasters in Suwidak, Banjarnegara. Landslide is a recurring event and until now there is no suitable method to respond to the threat, so the preventive stage have not been maximized. According to the research that the movement of land in the area is very active but can not be known qualitatively or quantitatively the level of activity that can cause landslides. The long-term goal of this research is to make the landslide prone areas map. There are two methods that used to achieve these purposes. The method that used to identificate landslide zoning in research area is geology and landscape morphology mapping. Meanwhile the second method to calculate the movement of the land using ground positioning observed over a period of time, analyzing the movement using parameter significance difference test, congruency test and point movement test. Based on the geology and landscape morphology mapping, the slope in Suwidak are 30 - 70%, while the rock type are interbedded shale and calcareous sandstones from Rambatan Formation. Geological structure that found is right slip fault (Rickard, 1972), with strike and dip of fault is N 310oE/78o. Angle of direct shear is 10o with safety factor value is 0.868 included into the unstable class. Those factors related with the result of movement that measured with GPS geodetic. Based on the result indicate that the measurement point was move from first periode to third periode measurement.
| Item Type: | Conference or Workshop Item (Paper) |
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| Uncontrolled Keywords: | landslide, geology, geodetic, suwidak, banjarnegara |
| Subjects: | Q Science > Q Science (General) |
| Depositing User: | Oktavia Dewi Alfiani |
| Date Deposited: | 11 Jan 2018 01:20 |
| Last Modified: | 11 Jan 2018 01:20 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/14099 |
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