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Analysis of riverbank instability due to toe scour and lateral erosion
Author(s) -
Thorne Colin R.,
Abt Steven R.
Publication year - 1993
Publication title -
earth surface processes and landforms
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 127
eISSN - 1096-9837
pISSN - 0197-9337
DOI - 10.1002/esp.3290180908
Subject(s) - bank failure , geology , erosion , bank erosion , geotechnical engineering , block (permutation group theory) , slope stability , instability , factor of safety , slab , stability (learning theory) , safety factor , geomorphology , geometry , mathematics , computer science , geophysics , mechanics , physics , machine learning , economics , financial system
This paper provides instruction in the use of the computer spreadsheet to undertake the calculations necessary to apply the Osman–Thorne bank stability analysis for steep, eroding riverbanks. The guide explains how to input the necessary parameters into the LOTUS 123 spreadsheet in order to: 1 find the initial factor of safety of the bank with respect to slab‐type failure; 2 test the sensitivity of bank stability to changes in the engineering properties of the bank material; 3 analyse the response of bank stability to toe scour and/or lateral erosion and find the critical condition; 4 find the geometry of the failure surface and failure block; 5 analyse the response of bank stability to further toe scour and/or lateral erosion; 6 find the geometry of the failure surface and failure block in subsequent failures.

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