Impact of weathering on slope stability in soft rock mass

Miščević, Predrag; Vlastelica, Goran

doi:10.1016/j.jrmge.2014.03.006

Cited by 104 publications

(40 citation statements)

References 11 publications

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“…It would be of great interest to evaluate the time necessary to produce an undermining similar to that analyzed in the present work, in order to estimate the return period of comparable failures. The work proposed by Miscevic and Vlastelica (2014) can be cited as an example of such an estimation; they quantified a weathering rate for marls underlying a sandstone layer near Split (Croatia) as 10 cm/year, monitoring the length of the overhanging sandstone layer through the time (8 years).…”

Section: Discussionmentioning

confidence: 99%

“…Almost all of these mechanisms act on the superficial soil layers (up to 10 m), and are driven by water percolation, facilitated by the presence of shrinkage-induced cracks in the soil taking place during the dry season ( fig 3b) and stress release (Picarelli et al, 2005;Yoshida, 1990). Water infiltration plays a fundamental role in the softening of clay rich terrains (Miscevic and Vlastelica, 2014) inducing chemical alteration (dissolution and precipitation of minerals; variation in pore water chemistry) and physical weathering (erosion s.s.). In particular, the first phenomenon can be described as the decomposition of the existing minerals to stable or metastable secondary mineral products, while the latter is related to the mechanical disaggregation of the former rock (Miscevic and Vlastelica, 2014).…”

Section: Typical Slope Instability Phenomena and Evolution Of The Sanmentioning

confidence: 99%

“…Water infiltration plays a fundamental role in the softening of clay rich terrains (Miscevic and Vlastelica, 2014) inducing chemical alteration (dissolution and precipitation of minerals; variation in pore water chemistry) and physical weathering (erosion s.s.). In particular, the first phenomenon can be described as the decomposition of the existing minerals to stable or metastable secondary mineral products, while the latter is related to the mechanical disaggregation of the former rock (Miscevic and Vlastelica, 2014).…”

Section: Typical Slope Instability Phenomena and Evolution Of The Sanmentioning

confidence: 99%

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An investigation into the development of toppling at the edge of fractured rock plateaux using a numerical modelling approach

et al. 2017

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The version presented here may differ from the published version. If citing, you are advised to consult the published version for pagination, volume/issue and date of publication An investigation on the development of toppling phenomena at the edge of fractured rock plateaux using a numerical modelling approach Margherita Cecilia Spreafico (a) , Federico Cervi (a) , Mirko Francioni (b) , Doug Stead (c) , Lisa Borgatti (a) a.

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Section: Discussionmentioning

confidence: 99%

Section: Typical Slope Instability Phenomena and Evolution Of The Sanmentioning

confidence: 99%

Section: Typical Slope Instability Phenomena and Evolution Of The Sanmentioning

confidence: 99%

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An investigation into the development of toppling at the edge of fractured rock plateaux using a numerical modelling approach

et al. 2017

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“…These sediments characterized a high proportion and wide range of carbonate component. According to Miščević and Vlastelica (2014) and Vlastelica (2015), CaCO 3 varies in the range of 42% to 79% and 32% to 89%, respectively. Water impermeable geological base and sloping terrain, mainly between 10-30% make this area vulnerable to the erosion.…”

Section: Materials and Methods Study Area And Soil Datamentioning

confidence: 99%

Estimation of Calcium Carbonate in Anthropogenic Soils on Flysch Deposits From Dalmatia (Croatia) Using Vis-Nir Spectroscopy

Miloš¹,

Bensa²

2017

AgricultForest

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SUMMARYThis study aimed to evaluate the ability to use Vis-NIR spectroscopy to predict CaCO 3 in the soil and to determine the contribution of the spectral ranges and wavelengths to the prediction. A total of 180 topsoil samples (0-25 cm) of anthropogenic soils derived from Flysch deposits in Dalmatia (Croatia) were analyzed for CaCO 3 and scanned in the laboratory with an ASD FieldSpec spectroradiometer (350-2500 nm). The partial last square regression (PLSR) with leave-one-out cross-validation method was used for calibrating the Vis-NIR spectra and CaCO 3 measured in the laboratory. The CaCO 3 content in investigated soils varies within a very wide range from 186.0 to 894.7 g kg -1 and has a high an average value of 547.2 g kg -1 and normal -near symmetrical frequency distribution. Prediction parameters, the coefficient of determination (R 2 ), the ratio of performance to deviation (RPD) and the range error ratio (RER) were 0.86, 2.42 and 11.4, respectively indicating that created PLSR model was able to predict CaCO 3 content in soil with moderately successful accuracy. The prediction error of the CaCO 3 measured as the root mean square error of prediction (RMSEP) was 57.9 g kg -1. These results suggest that Vis-NIR spectroscopy in combination with PLSR is acceptable as a rapid method for quality control (screening) of the CaCO 3 content in investigated soils.

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“…Generally, soft rocks are prone to slaking, swelling, collapse, breaking, softening, and argillization in the presence of humidity [1][2][3][4][5][6]. Such phenomenon can be quite crucial for various geotechnical hazards in roads, slopes, tunnels, and other engineering projects [7][8][9][10]. For example, when these soft rocks are used to fill subgrade, it is difficult to ensure the quality of the construction, often leading to excessive settlement, failure of embankments, and slope collapse.…”

Section: Introductionmentioning

confidence: 99%

Properties of Crushed Red-Bed Soft Rock Mixtures Used in Subgrade

Yao

Jia

Gan

et al. 2016

Advances in Materials Science and Engineering

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Slaking red-bed soft rocks are widely distributed in the south of Anhui Province, China, and several highways will go through this area. It is important to evaluate their physical and mechanical characteristics for the purpose of using this kind of soft rocks as materials for road construction. In this paper, the compacting tests, the resilient modulus tests, the California bearing ratio (CBR) tests, and permeability tests have been carried out on crushed red-bed soft rock mixtures. The test results showed that, for a given degree of compaction, the resilient modulus decreases linearly with the increase of moisture content. For a given moisture content, the resilient modulus and CBR values increase linearly with the increase of compaction degree, while the soaking swelling, water absorption capacity, and permeability coefficient decrease linearly. In other words, the strength and water stability are enhanced with the increase of the degree of compaction. The results demonstrate that the crushed red-bed soft rock mixtures can be directly used as materials for the highway construction by taking corresponding measures.

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Impact of weathering on slope stability in soft rock mass

Cited by 104 publications

References 11 publications

An investigation into the development of toppling at the edge of fractured rock plateaux using a numerical modelling approach

An investigation into the development of toppling at the edge of fractured rock plateaux using a numerical modelling approach

Estimation of Calcium Carbonate in Anthropogenic Soils on Flysch Deposits From Dalmatia (Croatia) Using Vis-Nir Spectroscopy

Properties of Crushed Red-Bed Soft Rock Mixtures Used in Subgrade

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