Reply to the discussion by Ganesh on “Analysis of passive earth pressure modification due to seepage flow effects"
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Issue Date
2017-09-13
Metadata
Show full item recordAbstract
Using an assumed vertical retaining wall with a drainage system along the soil–structure interface, this paper analyses the effect of anisotropic seepage flow on the development of passive earth pressure. Extremely unfavourable seepage flow inside the backfill, perhaps due to heavy rainfall, will dramatically increase active earth pressure while reducing passive earth pressure, thus increasing the probability of instability of the retaining structure. A trial and error analysis based on limit equilibrium is applied to identify the optimum failure surface. The flow field is computed using Fourier series expansion, and the effective reaction force along the curved failure surface is obtained by solving a modified Kötter equation considering the effect of seepage flow. This approach correlates well with other existing results. For small values of both the internal friction angle and interface friction angle, the failure surface can be appropriately simplified with a planar approximation. A parametric study indicates that the degree of anisotropic seepage flow affects the resulting passive earth pressure. In addition, incremental increases in the effective friction angle and interface friction angle both lead to an increase in passive earth pressure.Citation
Hu, Z., Yang, Z.X. Wilkinson, S. 'Reply to the discussion by Ganesh on “Analysis of passive earth pressure modification due to seepage flow effects"' Canadian Geotechnical Journal. 2018, 55(5): 666-679Publisher
Canadian Science PublishingJournal
Canadian Geotechnical JournalType
Journal articleLanguage
enISSN
0008-3674ae974a485f413a2113503eed53cd6c53
10.1139/cgj-2018-0314
Scopus Count
Collections
The following licence applies to the copyright and re-use of this item:
- Creative Commons
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/