SENSITIVITY ANALYSIS AND SLOPE STABILITY RISK OF KALIWADAS LIMESTONE HILLS AT KARANGSAMBUNG REGIONS, KEBUMEN, CENTRAL JAVA

On the limestone hills, Kaliwadas hill in Karangsambung, Kebumen, Central Java, occurs a crack that have gone on a landslide which have an impact on infrastructure losses. Post-landslide weather conditions that occur are still in position and allow for landslides and can provide greater. To anticipate this, it is necessary to analyze the slope stability with all parameters that can affect the slope of the slope, the sensitivity approach to determine the most dominant parameters, slope measurement speed and landslide field volume, and landslide slope analysis. From the studies that have been carried out, the factors that produce from two-dimensional analysis are 0.505 and from the 3-dimensional analysis of 1.227, the influence of earthquake factors on slope stability is very small, judging from the results of sensitivity, rock mass movement speed of 0.15 meters / month and can As a moderate movement, the results of the landslide analysis, the losses that have occurred due to the previous shift of around 60 million rupiah, and the potential loss if an avalanche is found is the estimated income is 21 million rupiah per year.