Numerical Simulation of Direct Shear Test on Rock Joint

Shrivastava, Amit Kumar; Rao, K. Seshagiri; Rathod, Ganesh W.

doi:10.1061/9780784412121.223

Cited by 2 publications

(1 citation statement)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hencher, 1976;Bandis et al, 1981;Gehle and Kutter, 2003) and through numerical modelling (e.g. Zhang et al, 2006;Shrivastava and Rao, 2010;Bahaaddini et al, 2016). Among these investigations authors focused on the mechanical (opened) rock joints that are, to some extent, special cases of incipient ones (Shang et al 2015;Shang 2016).…”

Section: Introductionmentioning

confidence: 99%

On the shear failure of incipient rock discontinuities under CNL and CNS boundary conditions: Insights from DEM modelling

Shang

Zhao

2018

Engineering Geology

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

On the shear failure of incipient rock discontinuities under CNL and CNS boundary conditions: Insights from DEM modelling

Shang

Zhao

2018

Engineering Geology

View full text Add to dashboard Cite

show abstract

Shear behaviour of infilled rock joints under different boundary conditions

Shrivastava

Rao

2023

Proceedings of the Institution of Civil Engineers - Geotechnica

View full text Add to dashboard Cite

Recently use of commercial software for analysis and design of rock slopes, underground structures, mining projects, the foundation of any infrastructure projects, piles, etc. becoming more popular and widely used. But sometimes, this software has many limitations and cannot be used directly for finding out the strength and deformation behavior of rock joints when joints are subjected to external load because of the construction of different projects. Correct prediction of strength and deformation behavior of rock joints are important for safe, economical, and sustainable design. In the present work, strength and deformation behavior of unfilled and infilled rock joints have been studied numerically by using one of the commercial software Universal Distinct Element Code (UDEC) under different boundary conditions like constant normal stiffness (CNS) and constant normal load (CNL) boundary conditions. The numerical model results are compared with experimental results of the test performed on a physical model. The strength predicted by the numerical model is in close agreement with experimental results at low initial normal stress and for CNL boundary conditions, as the asperity degradation during shearing process is almost same throughout the test. The numerical model cannot correctly predict the shear strength of rock joints under CNS boundary conditions and at high normal stress for both CNL and CNS conditions, because of the degradation in the asperity during shearing process and available model dosenot consider this effect. Hence, UDEC code has been modified in the present study for its acceptability under both CNL and CNS boundary conditins and at high initial normal stress at CNL boundary conditions. A comparison of predicted value with experimental results indicated most of the prediction lies in the prediction bend of 95%.

show abstract

Numerical Simulation of Direct Shear Test on Rock Joint

Cited by 2 publications

References 7 publications

On the shear failure of incipient rock discontinuities under CNL and CNS boundary conditions: Insights from DEM modelling

On the shear failure of incipient rock discontinuities under CNL and CNS boundary conditions: Insights from DEM modelling

Shear behaviour of infilled rock joints under different boundary conditions

Contact Info

Product

Resources

About