Evaluating the geomechanical properties of Misis fault breccia (Turkey)

Kahraman, S.; Alber, Michael; Fener, Mustafa; Günaydın, Osman

doi:10.1016/j.ijrmms.2008.02.010

Cited by 37 publications

(23 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Some physico-mechanical properties of the constituents of the Misis fault breccia were previously determined by Kahraman et al (2008). The UCS values of blocks range from 57.7 to 90.3 MPa with an average value of 77.1 MPa.…”

Section: The Tested Rock and Samplingmentioning

confidence: 99%

“…Their solution shows that error is a function of the fraction ratio and is inversely proportional to the square root of the probe area. Sonmez et al (2004), Kahraman and Alber (2006), Kahraman et al (2008), and Slatala et al (2010) used image analysis techniques for the VBP estimations for bimrocks. They checked the possible uncertainties in the two-dimensional estimation of VBP using the plot of cumulative frequency distribution of the ratio of the longest to the shortest axis of blocks.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An assessment on the indirect determination of the volumetric block proportion of Misis fault breccia (Adana, Turkey)

Kahraman

Alber

Fener

et al. 2014

Bull Eng Geol Environ

Self Cite

View full text Add to dashboard Cite

Volumetric block proportion (VBP) directly affects the strength of geologically complex rocks such as bimrocks (block-in-matrix rocks). Since the direct determination of VBP is difficult in most cases, some prediction methods were suggested. In this study, the VBP of Misis fault breccia, which is a type of bimrock, was determined by image analysis techniques and its predictability from Pand S-wave velocity, and density was investigated. Regression analysis showed that there is no relation between VBP and S-wave velocity. However, there is a weak relation between VBP and P-wave velocity. On the other hand, VBP was strongly correlated with density. It was concluded that P-and S-wave velocity may not be a measure of VBP of breccias. However, density is a good measure of VBP, because the relation between VBP and density is strong and statistically significant.

show abstract

Section: The Tested Rock and Samplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An assessment on the indirect determination of the volumetric block proportion of Misis fault breccia (Adana, Turkey)

Kahraman

Alber

Fener

et al. 2014

Bull Eng Geol Environ

Self Cite

View full text Add to dashboard Cite

show abstract

“…Different complex geomaterials with a block-in-matrix (BIM) internal arrangement exist worldwide, such as sedimentary and tectonic melanges, conglomerates, agglomerates, breccias and glacial tills (Lindquist 1994;Gokceoglu 2002;Kahraman et al 2008;Dong et al 2013;Sonmez et al 2016). Due to the great variability of their mechanical properties, the characterisation and modelling of these formations are extremely challenging tasks.…”

Section: Introductionmentioning

confidence: 99%

Effects of block shape and inclination on the stability of melange bimrocks

Napoli

Barbero

Scavia

2021

Bull Eng Geol Environ

View full text Add to dashboard Cite

A wide range of heterogeneous geological units composed of strong rock blocks enclosed in a bonded matrix of fine texture exists worldwide. Such geomaterials belong to geotechnically complex formations and are often referred to as bimrocks (block-in-matrix rocks) or bimsoils (block-in-matrix soils), as a function of their matrix characteristics and the interface strength between the matrix and blocks. Stability problems occurring in such complex geomaterials have been analysed almost exclusively by means of deterministic approaches and with the aim of investigating the effects of variable block contents on their mechanical behaviour. However, bimrocks and bimsoils can present very different internal block-in-matrix arrangements and properties according to their forming process and, consequently, significantly dissimilar mechanical behaviours. Therefore, the aim of this paper was to statistically investigate and compare the stability of theoretical slopes in the most widespread bimrock formations, i.e. sedimentary and tectonic melanges. These formations are characterised by substantial differences in their rock inclusion geometry. To this aim, a great number of 2D slope models were generated to enclose blocks with variable shapes, dimensions, arrangements, inclinations and contents. To obtain statistically based results, fifteen configurations were analysed for each block content and geometrical configuration considered. The results obtained indicate that block shapes and orientations significantly affect the stability of slopes in bimrocks only when the block contents are greater than 40%. Moreover, it is demonstrated that blocks inclined 0° to the horizontal provide the most tortuous and irregular failure surfaces and, consequently, the highest safety factors.

show abstract

“…Kahraman and Alber (2006b) and Alber and Kahraman (2009) correlated the uniaxial compressive strength (UCS) and elastic modulus (E) values of Ahauser fault breccia (Germany) having blocks weaker than the matrix with volumetric block proportion (VBP) and texture coefficient (TC) and found strong correlations between UCS and both VBP and TC. In addition, Kahraman et al (2008) investigated the geomechanical properties of the Misis fault breccia from Turkey. As a result of multiple regression analysis, they found some significant alternative models including density, P-and S-wave velocity and textural properties for the prediction of UCS and deviator stress.…”

Section: Introductionmentioning

confidence: 99%

Electrical impedance spectroscopy measurements to estimate the uniaxial compressive strength of a fault breccia

Kahraman

Alber

2014

Bull Mater Sci

View full text Add to dashboard Cite

Fault breccias are usually not suitable for preparing smooth specimens or else the preparation of such specimens is tedious, time consuming and expensive. To develop a predictive model for the uniaxial compressive strength (UCS) of a fault breccia from electrical resistivity values obtained from the electrical impedance spectroscopy measurements, twenty-four samples of a fault breccia were tested in the laboratory. The UCS values were correlated with corresponding resistivity values and a strong correlation between them could not be found. However, a strong correlation was found for the samples having volumetric block proportion (VBP) of 25-75%. In addition, it was seen that VBP strongly correlated with resistivity. It was concluded that the UCS of the tested breccia can be estimated from resistivity for the samples having VBP of 25-75%.

show abstract

Evaluating the geomechanical properties of Misis fault breccia (Turkey)

Cited by 37 publications

References 9 publications

An assessment on the indirect determination of the volumetric block proportion of Misis fault breccia (Adana, Turkey)

An assessment on the indirect determination of the volumetric block proportion of Misis fault breccia (Adana, Turkey)

Effects of block shape and inclination on the stability of melange bimrocks

Electrical impedance spectroscopy measurements to estimate the uniaxial compressive strength of a fault breccia

Contact Info

Product

Resources

About