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Need for better geologic input for drainage projects

Eleventh Congress on Irrigation and Drainage Part 2: 497-510

Need for better geologic input for drainage projects

Two case histories in the San Joaquin Valley, California, are used to illustrate the importance of data in the fields of geochemistry and site-specific geology. The first deals with swelling of clayey alluvium due to crystallization of mirabilite (Glaubers salt) at relatively low (usually above 0 deg C) winter temperatures. The process resulted in severe cracking of 6.25 cm (2.5 inches) thick concrete sidelining of a major drainage canal.

Accession: 001101529

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