Analysis of rock slope failures. Case studies on Romanian mountain roads
Analysis of rock slope failures. Case studies on Romanian mountain roads
The evaluation of failure planes on rock slopes is always a great challenge, because of limited accessibility and natural hazards a failing cliff face could pose. Designing of retaining or protecting structure requires very specific data: maximal size and mass of rock that can dislocate from the slope, the highest point on the rock face of failure occurrence, depth of alteration, and a yearly estimate of volume and weight of fallen rocks. Often the devices and methods used for determining the aforementioned information may seem simplistic or disproportionately small in order to extrapolate to a large surface of rock slope, but many of them have proven to be efficient over time. One such method is the stereographic projection of discontinuities. This allows predicting the failure type based on determined pole density of the orientation of the discontinuity sets, that will be extensively explained in the paper. This study is based on results collected from two of the most spectacular mountain roads of Romania: the Transfagarasan highway, once described as the “best driving road in the world” by a famous british TV show, and the Transalpina, which may be less conspicuous, but is officially the highest road of the country. The paper highlights similarities and differences between resulting input data for consolidation and maintenance works.
Andor-Csongor Nagy; C. Bruchental; D. M. Pasca; V. S. Farcas; Dorin Vasile Moldovan; L. E. Moldovan
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
B - Geohazards
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