Stability Numbers for a Vertical Circular Excavation with Surcharge: Fid-Bau Portal

Fachinformationsdienst BAUdigital

A platform for research: civil engineering, architecture and urbanism

Stability Numbers for a Vertical Circular Excavation with Surcharge

Chakraborty, Debarghya / Kumar, Jyant

Abstract The axisymmetric lower bound finite elements limit analysis technique has been used for computing the stability numbers (γH/c 0) for an unsupported circular vertical excavation in the presence of surcharge pressure (q). The numerical results are presented for various combinations of H/b, ϕ, m and q; the factor m incorporates the rate of linear increase of soil cohesion with depth for a fully cohesive soil medium. The computations reveal that the magnitude of γH/c 0 reduces continuously with (1) increases in the values of q, and (2) decreases in the magnitudes of m, ϕ and H/b.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Stability Numbers for a Vertical Circular Excavation with Surcharge

Chakraborty, Debarghya / Kumar, Jyant

Abstract The axisymmetric lower bound finite elements limit analysis technique has been used for computing the stability numbers (γH/c 0) for an unsupported circular vertical excavation in the presence of surcharge pressure (q). The numerical results are presented for various combinations of H/b, ϕ, m and q; the factor m incorporates the rate of linear increase of soil cohesion with depth for a fully cohesive soil medium. The computations reveal that the magnitude of γH/c 0 reduces continuously with (1) increases in the values of q, and (2) decreases in the magnitudes of m, ϕ and H/b.

Stability Numbers for a Vertical Circular Excavation with Surcharge

Chakraborty, Debarghya / Kumar, Jyant

Abstract The axisymmetric lower bound finite elements limit analysis technique has been used for computing the stability numbers (γH/c 0) for an unsupported circular vertical excavation in the presence of surcharge pressure (q). The numerical results are presented for various combinations of H/b, ϕ, m and q; the factor m incorporates the rate of linear increase of soil cohesion with depth for a fully cohesive soil medium. The computations reveal that the magnitude of γH/c 0 reduces continuously with (1) increases in the values of q, and (2) decreases in the magnitudes of m, ϕ and H/b.

Access

Check availability in my library

Order at Subito €

Page navigation

Document information

Export, share and cite

Document information

Title:

Stability Numbers for a Vertical Circular Excavation with Surcharge

Contributors:

Chakraborty, Debarghya (author) / Kumar, Jyant (author)

Published in:

Proceedings of the National Academy of Sciences, India Section A: Physical Sciences ; 87 ; 115-123

Publication date:

2016-11-02

Size:

9 pages

ISSN:

2250-1762 , 0369-8203

DOI:

https://doi.org/10.1007/s40010-016-0311-z

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

English

Keywords:

Circular excavation , Limit analysis , Optimization , Plasticity , Surcharge Physics , Physics, general , Applied and Technical Physics , Atomic, Molecular, Optical and Plasma Physics , Quantum Physics

Similar titles

Stability numbers for an unsupported vertical circular excavation in c–ϕ soil

Kumar, Jyant | Online Contents | 2012

Performance of Deep Braced Excavation Under Embankment Surcharge Load

Wang, Yixian / Ouyang, Jiye / Guo, Panpan et al. | Online Contents | 2023

Consolidation by Vertical Drains beneath a Circular Embankment under Surcharge and Vacuum Preloading

Baral, Pankaj / Indraratna, Buddhima / Rujikiatkamjorn, Cholachat et al. | ASCE | 2021

Seismic passive resistance with vertical seepage and surcharge

Wang, J. J. / Zhang, H. P. / Chai, H. J. et al. | British Library Online Contents | 2008

Machine learning-based stability assessment of unlined circular tunnels under surcharge loading

Kashyap, Rishabh / Chauhan, Vinay Bhushan / Kumar, Anish et al. | Springer Verlag | 2024