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Title: Retrogressive Failure of Reservoir Rim Sandy Slopes Induced by Steady-State Seepage Condition
Authors: Chandel A.
Singh, Mahendra
Thakur V.
Published in: Indian Geotechnical Journal
Abstract: Reservoir rim slopes often experience seepage-induced slope instability during rainfall season. The predominant phenomenon observed during monsoons is the establishment of continuous seeping conditions, either steady or unsteady in nature. The infiltrated rainwater seeping toward the drainage basin may induce instability in the slope. This paper presents results from an experimental study conducted to investigate the failure mechanism of a cohesionless soil slope under a steady-state seepage condition. Retrogressive multiple rotational slide type of slope failure occurred during experimentation. It was observed that the failure didn’t occur in one go; instead, it was progressive with time. In usual practice by engineers, while performing numerical simulations for a field problem, the focus is on the formation of failure surface and deformations observed. But, the limitation with such studies is that the movement of the slope surface over a period of time cannot be investigated. It is, therefore, suggested that emphasis should be laid upon the time-dependent analysis as well. © 2021, Indian Geotechnical Society.
Citation: Indian Geotechnical Journal, 51(4): 705-718
Issue Date: 2021
Publisher: Springer
Keywords: Numerical modeling
Physical modeling
Retrogressive multiple rotational slides
Slide 2D
ISSN: 9719555
Author Scopus IDs: 57222131826
Author Affiliations: Chandel, A., Department of Civil Engineering, IIT Roorkee, Roorkee, 247667, India
Singh, M., Department of Civil Engineering, IIT Roorkee, Roorkee, 247667, India
Thakur, V., Department of Civil and Environmental Engineering, NTNU, Trondheim, 7491, Norway
Funding Details: A part of the financial support for the present study has been received from M/s. THDC India Limited, Rishikesh (Uttarakhand, INDIA) under the project number: THD-1035-CED-16/17. The authors thank and acknowledge the financial support received from the M/s. THDC India Limited, Rishikesh (Uttarakhand, INDIA).
Corresponding Author: Chandel, A.; Department of Civil Engineering, India; email:
Appears in Collections:Journal Publications [CE]

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