The Use of Precise Survey Techniques to Find the Connection between Discontinuities and Surface Morphologic Features in the Laže Quarry in Slovenia

Lazar, Aleš; Vižintin, Goran; Beguš, Tomaž; Vulić, Milivoj

doi:10.3390/min10040326

Cited by 6 publications

(3 citation statements)

References 55 publications

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“…Research has shown that in the rainfall seepage process, the rock and soil mass bulk density and the pore water pressure increase, the sliding force of the slope body increases, and the shear strength decreases, resulting in slope failure [5,6]. Cracks and weak planes formed during rainfall and seepage are the main geological disaster sources driving slope failure [7,8]. Determination of the geological conditions and change trends of the slope structure, lithology, crack development, water content and weak planes is essential for effective slope disaster prediction and forecasting.…”

Section: Introductionmentioning

confidence: 99%

Distribution Characteristics of the Geoelectric Field in Waste Dump Slopes during the Evolution of Instability Sources under Rainfall Conditions

et al. 2023

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To study the evolution of geological hazard sources of waste dump slopes under rainfall conditions, a physical model of a rainfall-affected slope was designed. The apparent resistivity of the slope rock and soil mass at different rainfall times was measured via the high-density resistivity method, and the formation process of internal disaster sources of the rainfall-affected slope was obtained. The variation characteristics of the resistivity of the rain-affected slope were analyzed when it had a weak surface and crack development. Based on the three-water model and Maxwell conductivity formula, the evolution process of geological hazard sources of the rainfall-affected slope was summarized. A resistivity response mechanism equation for rainfall-induced slope hazard sources was derived and compared to the Archie formula, verifying the model rationality. The test results showed that the behavior of the rainfall-affected slope conforms to the saturated–unsaturated dynamic cycle process. The apparent resistivity was positively correlated with the development of slope pores and cracks and negatively correlated with the water content in the slope. The apparent resistivity increased during fracture development and decreased during water seepage. In the slope failure and disaster process, the apparent resistivity varies under the coupling effect of crack development and water seepage. During the formation of geological hazard sources, the apparent resistivity abruptly changes and fluctuates. Therefore, according to the abrupt changes and abnormal fluctuations in the apparent resistivity detected, the development of geological hazard sources of slopes can be determined.

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Section: Introductionmentioning

confidence: 99%

Distribution Characteristics of the Geoelectric Field in Waste Dump Slopes during the Evolution of Instability Sources under Rainfall Conditions

et al. 2023

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“…Rockfall is a type of landslide that occurs at a high-speed rate (Hungr et al 2014). Studies on the potential of rockfall at former quarry areas have been extensively conducted in previous studies (Kalpakci et al 2018;Robiati et al 2019;Lazar et al 2020). The assessment of rockfall potential is critical to facilitate the determination of mitigation methods that can be used to reduce the impact.…”

Section: Introductionmentioning

confidence: 99%

Valuation of Rock Mass Classification and Rockfall Geohazard in Abandoned Limestone Quarry for Reclamation

Hussin

Arifin

Rusydy

et al. 2022

Preprint

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The land reclamation of an area classified as geohazard-prone requires a comprehensive geological input before deciding on implementing sustainable and efficient development. The assessment of rock slope for quarry reclamation is crucial because quarry sites are exposed to geohazard events, particularly slope failure and rockfalls. Therefore, this study was conducted to assess the stability and potential failure of three rock slopes, namely GG1, GG2, and GG3, at an abandoned limestone quarry site in Kinta Valley, Malaysia. The Rock Mass Rating (RMR) and Slope Mass Rating (SMR) systems were utilised to assess the rock mass classification, while the rockfall analysis was performed to analyse the trajectory of the rock block. The slope kinematic analysis was also carried out to determine the potential mode of failure. The rockfall scenarios were simulated based on the input data of rock material properties to evaluate the safety aspect of the site for future urban development. The RMR system indicated that the quality of the rock mass was good and very good, while the SMR ranging from moderate to very good. The kinematic stability analysis for three slopes indicated the potential of a wedge, planar, and toppling failure. The analysis of the rockfall trajectory showed that the maximum rolling distance of the rock block was up to 5 m from the toe of the slope. Thus, the study proposed the construction of a buffer zone at least 20 m from the rock slope as a mitigation approach to avoid potential rockfall geohazard.

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“…The utilization in practical applications to daily problems in mining industry is nowadays very common (Török et al 2020;Duarte et al 2020;Lazar et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Building stone quarries: resource evaluation by block modelling and unmanned aerial photogrammetric surveys

2021

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The production of building stones shown an exponential growth in last decades as consequences of the demand and developments in the extraction and processing techniques. From the several conditioning factors affecting this industry, the geological constrains at quarry scale stands out as one of most important. Globalization and increasing competition in the building stone market require large raw material blocks to keep further processing as cost-effective as possible. Therefore, the potential extraction volume of in-situ stone blocks plays an important role in the yield of a dimensional stone quarry. The full characterization of the fracturing in the quarries comes up as fundamental in the assessment of the in-situ blocks volume/shape and potential extracted raw blocks. Identify the joint sets present, their spacing and the differences across the quarry demands a continuous assess during the quarry live span. Information from unmanned aerial vehicles helps in the field survey, namely trough digital surface models, orthophotos, and three-dimensional models. Also, the fracturing modelling by specific software programs is crucial to improve the block size assessment and the increase the quarry yield. In this research fracturing of twenty-one quarries of granite, limestone, marble, and slate from Portugal were assessed by combining field surveys with new techniques. From the studied quarries several cases were selected and presented to highlight the importance of this combined methodology in the fracturing assessment and how they can be helpful in the maximization of the resources and quarry management.

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The Use of Precise Survey Techniques to Find the Connection between Discontinuities and Surface Morphologic Features in the Laže Quarry in Slovenia

Cited by 6 publications

References 55 publications

Distribution Characteristics of the Geoelectric Field in Waste Dump Slopes during the Evolution of Instability Sources under Rainfall Conditions

Distribution Characteristics of the Geoelectric Field in Waste Dump Slopes during the Evolution of Instability Sources under Rainfall Conditions

Valuation of Rock Mass Classification and Rockfall Geohazard in Abandoned Limestone Quarry for Reclamation

Building stone quarries: resource evaluation by block modelling and unmanned aerial photogrammetric surveys

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