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Published in:
2020 | OriginalPaper | Chapter
Raising of Ash Pond for Augmented Storage
Author : B. V. Sushma
Published in: Construction in Geotechnical Engineering
Publisher: Springer Singapore
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Abstract
In thermal power plants, a huge amount of ash will be generated as a result of combustion of coal in large quantities. The generated ash will generally be transported and stored in designated areas called ‘ash pond’, before finding use in cement plants or any other engineering purposes. Ash pond is generally formed by creating an earthen embankment all along the identified periphery. In primary phase, the earthen embankment is constructed to contain the ash slurry up to maximum ash fill level, which is termed as ‘starter bund’. In the secondary phase for augmenting the ash storage volume, the ash bund height will be increased by formation of bund of equal heights in stages over and above the starter bund, which is termed as ‘raisings’. This paper covers the raising of bund, construction material, design and construction aspects.