Scour—Mitigation, Predictions, and Limitations

M R, Madhav (2022) Scour—Mitigation, Predictions, and Limitations. In: International Society for Soil Mechanics and Geotechnical Engineering, ISSMGE 2020 and Technical Committee 213 Workshop on Scour and Erosion, 2020, 16 December 2020 through 16 December 2020, Virtual, Online.

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Abstract

The paper presents an example of coastal scour and its mitigation and few examples of limitations of its prediction. An extremely serious case of continuous and rapid erosion of the coastline in the Gulf of Cambay (Khambat) in the state of Gujarat, was dealt with an innovative design using gabions and geosynthetics. The designed and installed measure included a global perspective of preventing erosion along the toe and the base with an apron. Scour prediction unfortunately as in several cases in Geotechnical Engineering presume a homogeneous soil profile which is rarely and ever met with in real life. The practice of ignoring this common occurrence leads to uneconomic and in some cases anomalous situations wherein the predicted depth extends to stiff and strong strata. Few examples illustrate these situations. © 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

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