Abstract
The paper deals with the assessment of slope stability on the road II/595 near the village Zlatno before and after the landslide caused by floods in 2010. The calculation of factor of safety was made using GEO 5 software. For proposal comprehensive assessment and possible remedial work is necessary to know the geological conditions and choose the appropriate method for assessing slope stability. The critical factors of safety have been determined by Petterson, Bishop and Sarma Methods. After finding the most unfavorable slip surface a proposal of remediation measures has been made. The paper presents various solutions to ensure slope stability of the road. The most appropriate remedial action is Variant III - reinforced slope due to its greater factor of safety.
Highlights
Frequent flood events are taking place in our area
That is the reason why Petterson, Bishop and Sarma Methods were selected for calculation and assessment of slope stability of the road
Sarma Method is more appropriate for this calculation, because the slope is formed of rock
Summary
Frequent flood events are taking place in our area. Floods are associated with rapid erosion processes, which involve the destruction of land resources and may lead to landslides of drenched soil. That is the reason why Petterson, Bishop and Sarma Methods were selected for calculation and assessment of slope stability of the road. Calculation and assessment of slope stability on the road II/595 near the village Zlatno was carried out by using program “Slope stability”, which is a subprogram of GEO 5 by company FINE Ltd [9]. Assessment of slope stability on the road II/595 near the village Zlatno was made on the landslide place, in four cross-sections CS-1, CS-2, CS-3, and CS-4 (from 24.886 to 24.932 km). By static calculation in the GEO 5 program, the required length and number of geogrids has been determined For comparison as another method of remediation of slope stability of roads a Variant IV – Reinforced slope with ground anchors was chosen.
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