Slake durability study of shaly rock and its predictions

Singh, T. N.; Verma, A. K.; Singh, Vimal; Naik, Gaurav Gopal

doi:10.1007/s00254-004-1150-9

Cited by 74 publications

(20 citation statements)

References 7 publications

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“…The Slake Durability test was carried out using the standard testing method developed by Franklin and Chandra (1972) [1], as recommended by the International Society for Rock Mechanics [26] and standardized by the American Testing and Materials [27]. The Slake Durability is an important property for rock materials and rock masses, as it could be used to characterize the susceptibility of such rocks to weathering and provide an overview of their geotechnical behaviour ( [1,9,[28][29][30][31][32][33]). The Uniaxial Compressive strength was indirectly measured using the Point load test which was developed as an index test, since the samples appeared to be very broken, at least for the UCS testing method.…”

Section: Materials Studied and Testing Methodsmentioning

confidence: 99%

Geotechnical and mineralogical properties of weak rocks from Central Greece

et al. 2009

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Thirty bulk samples of hard soils-soft rocks such as marls, originating from Euboea Island and Peloponnesus area, were investigated to evaluate their geotechnical behavior. Specifically, by conducting a series of physical and geotechnical tests, such as liquid limit and plastic limit tests, along with the estimation of the grain size fraction, Slake Durability and Point Load Test. Certain parameters were determined and used for empirical correlations with their mineralogical characteristics. The mineralogical composition was determined by Xray diffraction, thermo-gravimetric and thermal analysis, succeeded by textural analysis performed by Optical Microscope. With the help of the above mentioned tests, we interpreted the observed geotechnical behavior of the examined weak rocks by means of mineralogical composition and texture. Durability and the unconfined compressive strength was found to be influenced by high percentages in carbonate minerals. In addition, it was found that a decrease in clay content resulted in higher strength and durability values. The concluded empirical correlations verified the influence of these parameters and gave a general overview of the engineering behavior of the examined weak rocks.

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Section: Materials Studied and Testing Methodsmentioning

confidence: 99%

Geotechnical and mineralogical properties of weak rocks from Central Greece

et al. 2009

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“…During the test, the finer products of slaking pass through the mesh and into the water bath. The slake durability index (SDI) is the percentage ratio of final to initial dry weights of rock in the drum (Singh et al 2004). …”

Section: Laboratory Investigationmentioning

confidence: 99%

A correlation between Schmidt hammer rebound numbers with impact strength index, slake durability index and P-wave velocity

Sharma

Khandelwal

Singh

2010

Int J Earth Sci (Geol Rundsch)

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The main objective of this study was to establish statistical relationship between Schmidt hammer rebound numbers with impact strength index (ISI), slake durability index (SDI) and P-wave velocity. These are important properties to characterize a rock mass and are being widely used in geological and geotechnical engineering. Due to its importance, Schmidt hammer rebound number is considered as one of the most important property for the determination of other properties, like ISI, SDI and P-wave velocity. Determination of these properties in the laboratory is time consuming and tedious as well as requiring expertise, whereas Schmidt hammer rebound number can be easily obtained on site which in addition is non-destructive. So, in this study, an attempt has been made to determine these index properties in the laboratory and each index property was correlated with Schmidt hammer rebound values. Empirical equations have been developed to predict ISI, SDI and P-wave velocity using rebound values. It was found that Schmidt hammer rebound number shows linear relation with ISI and SDI, whereas exponential relation with P-wave velocity. To check the sensitivity of empirical relations, Student's t test was done to verify the correlation between rebound values and other rock index properties.Keywords Schmidt hammer rebound number Á Impact strength index Á Slake durability index Á P-wave velocity Á t test

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“…As a consequence, large landslides and rock falls occur, particularly in the zones of neotectonically active faults and boundary thrusts (Valdiya 1988, 1995, Bartarya and Valdiya 1989, Pant and Luirei 1999, Singh et al 2004. The study area is bounded between Amritpur to Jamrani (latitudes 29816 0 -29819 0 N and longitudes 79833 0 -79838 0 E) in the lower ridges of Gaula catchment.…”

Section: The Study Areamentioning

confidence: 99%

“…Several researchers have used this finite difference code for rock science and rock engineering problems related to slope stability (Singh et al 2004, Singh and Verma 2007, 2009. Figure 4 shows the slope with height H ¼ 430.0 m and slope angle varying from 38 to 588.…”

Section: Two-dimensional Finite Difference Analysismentioning

confidence: 99%

Static and dynamic analysis of a landslide

Singh¹,

Verma²,

Sarkar³

2010

Geomatics, Natural Hazards and Risk

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Slope failure is a recurrent phenomenon in hilly regions. It is hazardous because of the accompanying rapid mass movement of soil and rock mass. To alleviate the damage caused by landslide, slope-stability analyses and stabilization techniques require in-depth understanding and appraisal of the process that govern the failure behaviour of slopes. Once the instability behaviour is understood, remedial measures such as retaining walls, rock bolts, anchoring, etc., can be recommended to stabilize the slope.This article deals with a comparative study used for the analysis of the stability of slopes of Amiyan area, near Kathgodam, Nainital, Uttarakhand assuming that the rock mass follow the Mohr-Coulomb failure criterion under static and dynamic loading conditions. The area constantly experiences local as well as regional slides along the river bank. A field study was carried out in the landslide area to collect the representative samples to determine the various physiomechanical properties of rock as well as debris samples. These properties have been used as input parameters after converting it into the rockmass properties using a joint weakening coefficient for the numerical simulation. The computed deformations and the stress distributions, along the failure surface, have been compared with the field measurements/observation and found to be in good agreement. The global factor of safety (FOS) calculated by finite difference, finite element and dynamic analysis was found to be 1.57, 1.144 and 0.84, respectively. This indicates that the slope is critically stable in case of any small local/global disturbance which may further reduce the FOS and cause failure.

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Slake durability study of shaly rock and its predictions

Cited by 74 publications

References 7 publications

Geotechnical and mineralogical properties of weak rocks from Central Greece

Geotechnical and mineralogical properties of weak rocks from Central Greece

A correlation between Schmidt hammer rebound numbers with impact strength index, slake durability index and P-wave velocity

Static and dynamic analysis of a landslide

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