Classifying and Assessing the Geologic Contribution to Rockfall Hazard

Vandewater, Christopher J.; Dunne, William M.; Mauldon, Matthew; Drumm, Eric C.; Bateman, Vanessa

doi:10.2113/11.2.141

Cited by 32 publications

(6 citation statements)

References 14 publications

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“…(1) Degree of undercutting: in sedimentary rock, undercutting is caused by differential erosion and weathering in various lithologies (Vandewater et al 2005). Also, large lithological variations provide a large amount of undercutting within a rock slope.…”

Section: Sedimentary Rocksmentioning

confidence: 99%

Rockfall Hazard Rating System along SH-72: a case study of Poladpur–Mahabaleshwar road (Western India), Maharashtra, India

Ansari

Ahmad

Singh

et al. 2015

Geomatics, Natural Hazards and Risk

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Construction of railways, highways and roads around steep slopes is a challenging assignment and require special investigations by geologists and geotechnical engineers that help to identify critical slopes. Rockfall Hazard Rating System for India (RHRSI) is a modified scheme for Indian subcontinent and used to define overall stability of slopes in mountainous region or rock cut slopes. Once this rating system identifies critical zones, proper protection measures can be applied to prevent rockfalls. In this article, RHRSI is adopted to identify slopes, prone to rockfalls so that proper preventive measure can be proposed to mitigate loss. State Highway-72 (SH-72) connecting Poladpur to Mahabaleshwar, is an important transportation corridor supporting high vehicle traffic within the wellknown tourist area is chosen for rockfall hazard rating. Field observations show that up to 15 km corridor from Mahabaleshwar town has frequent rockfall problems with two most rockfall locations situated at about 12 and 6 km from Mahabaleshwar town. Also, an attempt has been made to focus on riskconsequence analysis for rockfall locations. To this aim, the RHRSI is applied to SH-72 corridor on two locations which are identified as very prone to rockfall hazard.

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Section: Sedimentary Rocksmentioning

confidence: 99%

Rockfall Hazard Rating System along SH-72: a case study of Poladpur–Mahabaleshwar road (Western India), Maharashtra, India

Ansari

Ahmad

Singh

et al. 2015

Geomatics, Natural Hazards and Risk

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“…The NHI-RHRS was adapted to the requirements of the region of Tennessee and a new system was developed (in this paper denoted as TRHRS). The system focuses mainly on the geological characterization; by considering failure modes based on the standard failure mechanisms of rock slopes (Vanderwater et al, 2005). Russell et al (2008) proposed a modified RHRS method for Colorado region (in this paper denoted as CRHRS).…”

Section: XLVII No 3 -1665mentioning

confidence: 99%

Rockfall hazard and risk assessment of road slopes.

2013

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This paper presents and compares the main methods of hazard and risk assessment for road slopes. Hazard assessment is achieved by rating several parameters such as the slope’s geometry, traffic conditions, the geology and the rockmass properties, weather conditions, historical rockfall data etc. A hazard assessment can also be executed using 2D or 3D trajectory models, by combining the frequency of a rockfall and the kinetic energy of a falling rock. Several methodologies have been developed for risk assessment, varying from simplistic approaches to comprehensive probabilistic or quantitative risk assessment methods. Finally, the most suitable methods were used in order to assess the level of hazard and risk as an example (the data from two sections of the national road at Tempi Gorge, Greece) where many rockfall events occurred in the past few years.

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“…Hungr et al (2003) have proposed a new rockfall hazard rating system for use along a railway line, again with a Quantitative Risk Assessment (QRA) procedure. Vandewater et al (2005) have proposed a rockfall hazard system for highways giving emphasis on the contribution of geological factors.…”

Section: Generalmentioning

confidence: 99%

Rockfall hazard and risk assessment: an example from a high promontory at the historical site of Monemvasia, Greece

Saroglou

Marinos

Μαρίνος

et al. 2012

Nat. Hazards Earth Syst. Sci.

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Abstract. The paper presents the kinematics of rock instability of a high limestone promontory, where the Monemvasia historical site is situated, in Peloponnese in Southern Greece. The instability phenomena poses a significant threat to the town located at the base of the slope. Rockfall episodes occurred in the past due to the relaxation of the high cliff, whereas significant undermining of the castle frontiers has been observed at the slope crest.The predominant types of instability are of planar, wedge and toppling failure of medium to large blocks. In order to investigate the existing stability conditions and decide upon the protection measures, stability and rockfall analyses were carried out for numerous slope sections under different loading conditions and protection measures were suggested.A rock-fall risk rating system is proposed, which is based on morphological and structural criteria of the rock mass and on vulnerability and consequences. The rating system is applied for individual sections along the slope and a risk map was produced, which depicted areas having different degree of risk against rockfall occurrences.

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Classifying and Assessing the Geologic Contribution to Rockfall Hazard

Cited by 32 publications

References 14 publications

Rockfall Hazard Rating System along SH-72: a case study of Poladpur–Mahabaleshwar road (Western India), Maharashtra, India

Rockfall Hazard Rating System along SH-72: a case study of Poladpur–Mahabaleshwar road (Western India), Maharashtra, India

Rockfall hazard and risk assessment of road slopes.

Rockfall hazard and risk assessment: an example from a high promontory at the historical site of Monemvasia, Greece

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