Rock engineering rating system for assessing the suitability of armourstone sources

AbstractThe process involved in assessing and selecting a potential source of armourstone of suitable quality is one of great complexity. The process involves the inspection and evaluation of the quarry and its production methods, testing of the processed stone, evaluation of the quality of both intact and processed stone, and consideration of both the transportation methods and placement techniques. The entire process, from quarry selection to placement at the project, may be viewed as a rock engineering system. The use of a rock engineering interaction matrix simplifies an understanding of how various factors affecting the quality of quarried armourstone are interrelated. Through this understanding of the various interrelationships a weighted rock engineering rating system may be developed for the assessment of the suitability of various armourstone sources. Such a rating system is designed to pull together all the factors related to both the field and laboratory investigations of a potential source, enabling geologists at all experience levels to arrive at a well-founded conclusion concerning the potential quality of stone produced from a particular armourstone source.

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Development of the Landslide Susceptibility Map of Attica Region, Greece, Based on the Method of Rock Engineering System

Land ◽

10.3390/land10020148 ◽

2021 ◽

Vol 10 (2) ◽

pp. 148

Author(s):

Nikolaos Tavoularis ◽

George Papathanassiou ◽

Athanassios Ganas ◽

Panagiotis Argyrakis

Keyword(s):

Landslide Susceptibility ◽

Regional Scale ◽

Interaction Matrix ◽

Susceptibility Map ◽

Engineering System ◽

Slope Failures ◽

Landslide Susceptibility Map ◽

Rock Engineering ◽

Entire Area ◽

Rock Engineering System

The triggering of slope failures can cause a significant impact on human settlements and infrastructure in cities, coasts, islands and mountains. Therefore, a reliable evaluation of the landslide hazard would help mitigate the effects of such landslides and decrease the relevant risk. The goal of this paper is to develop, for the first time on a regional scale (1:100,000), a landslide susceptibility map for the entire area of the Attica region in Greece. In order to achieve this, a database of slope failures triggered in the Attica Region from 1961 to 2020 was developed and a semi-quantitative heuristic methodology called Rock Engineering System (RES) was applied through an interaction matrix, where ten parameters, selected as controlling factors for the landslide occurrence, were statistically correlated with the spatial distribution of slope failures. The generated model was validated by using historical landslide data, field-verified slope failures and a methodology developed by the Oregon Department of Geology and Mineral Industries, showing a satisfactory correlation between the expected and existing landslide susceptibility level. Having compiled the landslide susceptibility map, studies focusing on landslide risk assessment can be realized in the Attica Region.

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An implementation of rock engineering system (RES) for ranking the instability potential of slopes in Greek territory. An application in Tsakona area (Peloponnese - prefecture of Arcadia)

Bulletin of the Geological Society of Greece ◽

10.12681/bgsg.11049 ◽

2017 ◽

Vol 49 ◽

pp. 38

Author(s):

N. Tavoularis ◽

I. Koumantakis ◽

D. Rozos ◽

G. Koukis

Keyword(s):

Slope Failure ◽

Development Planning ◽

Interaction Matrix ◽

Engineering System ◽

Instability Index ◽

Efficient Tool ◽

Rock Engineering ◽

Landslide Occurrence ◽

Rock Engineering System ◽

Planning Processes

This paper presents an application of the Rock Engineering system (RES) in an attempt to assess the inherent instability potential of Tsakona landslide in the region of SW Arcadia, Peloponnese, Greece which happened on February 2003. The RESystem has been considered to fulfill the basic requirements to deal with landslide phenomena, as it combines objectivity and efficiency. The main scope of RES application to landslide studying is to define the important causative and triggering factors responsible for the slope failures, quantify their interactions, obtain their weighted coefficients and calculate the instability index, which refers to the potential instability of the examined natural slope. In this study, the final implementation of the RES method is achieved through an interaction matrix, where ten principal parameters were selected as controlling factors for the landslide occurrence. It is concluded that RES could be a simple and efficient tool in calculating the instability index and as a consequence getting a prognosis of a potential slope failure regarding the land use and development planning processes in landslide susceptible areas.

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