Durability of soft rocks in Eocene flysch formation (Dalmatia, Croatia)

Vlastelica, Goran; Miščević, Predrag; Cvitanović, Nataša Štambuk

doi:10.1016/j.enggeo.2018.08.015

Cited by 25 publications

(15 citation statements)

References 18 publications

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“…However, in most cases, slow movements are observed, but this does not mean that the slope is stable since motion can be accelerated, and any mechanism can trigger rapid landslides even in these slow-moving areas, without any previous signs of acceleration. Similar features were observed at other lithologies such as marls [34] and flysch [35]. The recording of such displacements of soft rock slopes and cliff faces are possible by using remote sensing techniques such as terrestrial laser scanner TLS [36,37] or unmanned aerial vehicles (UAV) [6,[38][39][40].…”

Section: Resultsmentioning

confidence: 58%

Types of Landslides along Lake Balaton, Hungary

Nagy-Göde

Török

2022

Period. Polytech. Civil Eng.

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Landslides are often triggered by various mechanisms such as precipitation, increase in the groundwater table, surface load, etc. and are classified according to the geometry and intensity of the motion. This paper provides an inventory considering all these factors by interpreting landslide records and available maps of the lakeside banks of the largest lake in Central Europe, Lake Balaton. Landslides in these areas severely damaged roads and railway networks. These disasters are linked to the mass movements of hundreds of m3 in the past years. The study area, the coastal regions of the lake, is divided into three geographically and geologically different sections (Eastern Basin, North Coast, South Coast). The landslide forms and the proportion of various movements and their timing also differ in these areas: at the south coast, falls and toppling prevail, while in the eastern basin, slidings prevail. The leading cause of mass movements is soaking and human interventions in all areas. Continuous monitoring of these landslide-prone areas contributes to the prediction of sliding and help in the design of remediation actions.

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Section: Resultsmentioning

confidence: 58%

Types of Landslides along Lake Balaton, Hungary

Nagy-Göde

Török

2022

Period. Polytech. Civil Eng.

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“…Convergence of the Adria microplate and the stable Europe during Eocene-Oligocene resulted in cessation of shallow-water carbonate sedimentation and formation of sinorogenic flysch basins [44]. As the result, present day Croatian coast is dominated by carbonate lithology, while mechanically weaker rock assemblages (such as flysch and younger associated sediments, which from geotechnical aspect has moderate to low durability) [50], occupy minor segments. Due to the predominant carbonate fabric beaches are small and disperse, while true cliffs are rare and developed only in non-carbonate rocks [51,52].…”

Section: Geological Settingsmentioning

confidence: 99%

Integration of Terrestrial Laser Scanning and UAS Photogrammetry in Geological Studies: Examples from Croatia

Kordić

Lužar-Oberiter

Pikelj

et al. 2019

Period. Polytech. Civil Eng.

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Terrestrial laser scanning (TLS) in combination with Unmanned Aircraft System (UAS) and modern computer based photogrammetry is currently the best approach for the acquisition of high-resolution 3D spatial information. Highly realistic 3D spatial data sets are becoming the basis for detailed geological studies, providing a multidisciplinary approach in the study and research of both underground and above ground sites. To emphasize the variety of possible implementations of these state-of-the-art methodologies, four characteristic and yet quite different case studies are presented where such geodetic techniques are successfully employed. The presented case studies demonstrate that TLS and UAS photogrammetry, as non-contact surveying methods, are able to reduce survey time and total project costs. As added value, they provide high-resolution data that can be analyzed in a virtual environment from a sedimentological or structural aspect. Stored digital documentation also allows future multi-temporal spatial data comparison at any timeframe and scale, thus enhancing any target geological data gathering and analyses at the studied sites.

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“…Numerous mining and civil projects use artificial freezing worldwide; however, uncertainties remain concerning understanding and predicting the behavior of frozen rocks. Several research addresses the impact of water on the strength of soft rocks (Mellor 1971(Mellor , 1973Vásárhelyi 2005;Vásárhelyi and Ván 2006;Miščević and Vlastelica 2011;Wong et al 2016;Vásárhelyi and Davarpanah 2018;Vlastelica et al 2018;Li et al 2020;Bar and Barton 2021). However, there is limited research on the effect of freezing on the mechanical properties of intact rock and rock mass (Jamshid 2019; Jamshidi et al 2018;Kodama et al 2013;Yagiz 2019).…”

Section: Introductionmentioning

confidence: 99%

“…The scatter of data suggests that strength probably has no influence on the durability of marls. In addition, Vlastelica et al (2018) determined the additional criteria or modifications of the standardized durability testing procedures for reducing the uncertainties identified in the assessment of the durability of marl, or disadvantages of their application In the paper published by Török et al (2018), the relationship between mechanical and physical properties of two types of highly porous rocks, such as Oolitic Miocene limestone and Miocene rhyolite tuff, was compared. The research gets to the conclusion that the strength of frozen, dry and saturated porous rocks are relatively low, but when the rocks are frozen, very high uniaxial strength values are measured.…”

Section: Introductionmentioning

confidence: 99%

Studies on the Mechanical Properties of Dry, Saturated, and Frozen Marls Using Destructive and Non-destructive Laboratory Approaches

Davarpanah

Sharghi

Tarifard

et al. 2021

Iran J Sci Technol Trans Civ Eng

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The mechanical properties of frozen rocks vary significantly from the properties of the same lithology under ambient temperature. The goal of this paper is to investigate these changes in the physical and mechanical properties of rocks due to saturation and freezing. Besides, the attention was paid on discovering new correlations between the mechanical characteristics. To fulfill these objectives, 36 uniaxial compressive strength tests, 36 Brazilian splitting tests, and 48 point load tests were carried out. The samples were tested in air dry, water saturated, and frozen (− 20 °C) conditions. The measured physical and mechanical parameters were analyzed by using regression analyses. It was found that the average uniaxial compressive strength of frozen samples (21.93 MPa) is 86.4% more than saturated ones (11.76 MPa) but 25.9% less than dry specimens (29.62 MPa). Additionally, high correlations were established between uniaxial compressive strength and IS(50) under air-dry, saturated, and frozen conditions for the investigated marl samples. Furthermore, it is of particular interest to observe a high correlation with the determination coefficient (R2 = 0.95) between the constants of previously published linear regressions of UCS- Is(50) under dry status.

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Durability of soft rocks in Eocene flysch formation (Dalmatia, Croatia)

Cited by 25 publications

References 18 publications

Types of Landslides along Lake Balaton, Hungary

Types of Landslides along Lake Balaton, Hungary

Integration of Terrestrial Laser Scanning and UAS Photogrammetry in Geological Studies: Examples from Croatia

Studies on the Mechanical Properties of Dry, Saturated, and Frozen Marls Using Destructive and Non-destructive Laboratory Approaches

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